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Hi Jay,
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<div>Let’s discuss it on Friday.</div>
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<div>Cheers,<br>
<br>
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<p class="MsoNormal" style="margin: 0cm 0cm 0.0001pt;"><span style="background-color: rgba(255, 255, 255, 0);">Alex<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin: 0cm 0cm 0.0001pt;"><span style="background-color: rgba(255, 255, 255, 0);">___________________________________<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin: 0cm 0cm 0.0001pt;"><span style="background-color: rgba(255, 255, 255, 0);">S. Alex Bogacz,<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin: 0cm 0cm 0.0001pt;"><span style="background-color: rgba(255, 255, 255, 0);">Accelerator Physics Group Leader<o:p></o:p></span></p>
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<div>
<p class="MsoNormal" style="margin: 0cm 0cm 0.0001pt;"><span style="background-color: rgba(255, 255, 255, 0);">Center for Advanced Studies of Accelerators<o:p></o:p></span></p>
</div>
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<p class="MsoNormal" style="margin: 0cm 0cm 0.0001pt;"><span style="background-color: rgba(255, 255, 255, 0);">Jefferson Lab<o:p></o:p></span></p>
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<div>
<p class="MsoNormal" style="margin: 0cm 0cm 0.0001pt;"><font color="#000000"><span style="caret-color: rgb(0, 0, 0); background-color: rgba(255, 255, 255, 0);"><a href="x-apple-data-detectors://8" dir="ltr" x-apple-data-detectors="true" x-apple-data-detectors-type="address" x-apple-data-detectors-result="8" style="text-decoration-color: rgba(127, 127, 127, 0.380392);">12000
Jefferson Avenue,</a><o:p></o:p></span></font></p>
</div>
<div>
<p class="MsoNormal" style="margin: 0cm 0cm 0.0001pt;"><font color="#000000"><span style="caret-color: rgb(0, 0, 0); background-color: rgba(255, 255, 255, 0);"><a href="x-apple-data-detectors://8" dir="ltr" x-apple-data-detectors="true" x-apple-data-detectors-type="address" x-apple-data-detectors-result="8" style="text-decoration-color: rgba(127, 127, 127, 0.380392);">Newport
News, VA 23606</a><o:p></o:p></span></font></p>
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<span style="background-color: rgba(255, 255, 255, 0);">___________________________________</span>
<div>Sent from my iPhone</div>
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<blockquote type="cite">On Aug 23, 2022, at 1:26 PM, Jay Benesch <benesch@jlab.org> wrote:<br>
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<blockquote type="cite">
<div dir="ltr"><span>Alex,</span><br>
<span></span><br>
<span>One per magnet is NOT conservative. Read the first page of my TN again: Stephen's specs. And his email. Three per magnet, two dipole and one quad, is conservative. Plus six per cell in each splitter. I assumed five cells in each of six splitters
at each end of each arc, plus 90 cells in the arc, to arrive at 300 frames and 900 power supplies per arc. That is the upper bound and therefore conservative. Recall the lesson of the CDG's SSC estimate and its fate.</span><br>
<span></span><br>
<span>Jay</span><br>
<span></span><br>
<span>On 8/23/22 13:19, Alex Bogacz wrote:</span><br>
<blockquote type="cite"><span>Hi Stephen,</span><br>
</blockquote>
<blockquote type="cite"><span>I will adjust number of correctors (for costing) to one per magnet, to stay on a conservative site.</span><br>
</blockquote>
<blockquote type="cite"><span>We can relax it later based on the outcome of the MC simulation.</span><br>
</blockquote>
<blockquote type="cite"><span>Cheers,</span><br>
</blockquote>
<blockquote type="cite"><span>Alex</span><br>
</blockquote>
<blockquote type="cite"><span>___________________________________</span><br>
</blockquote>
<blockquote type="cite"><span>S. Alex Bogacz,</span><br>
</blockquote>
<blockquote type="cite"><span>Accelerator Physics Group Leader</span><br>
</blockquote>
<blockquote type="cite"><span>Center for Advanced Studies of Accelerators</span><br>
</blockquote>
<blockquote type="cite"><span>Jefferson Lab</span><br>
</blockquote>
<blockquote type="cite"><span>12000 Jefferson Avenue, <x-apple-data-detectors://8></span><br>
</blockquote>
<blockquote type="cite"><span>Newport News, VA 23606 <x-apple-data-detectors://8></span><br>
</blockquote>
<blockquote type="cite"><span>___________________________________</span><br>
</blockquote>
<blockquote type="cite"><span>Sent from my iPhone</span><br>
</blockquote>
<blockquote type="cite">
<blockquote type="cite"><span>On Aug 23, 2022, at 1:10 PM, Brooks, Stephen via FFA_CEBAF_Collab <ffa_cebaf_collab@jlab.org> wrote:</span><br>
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<blockquote type="cite"><span>It *may* be possible to use fewer, but only after running error simulations. And typically, using fewer correctors means they have to be proportionately stronger each.</span><br>
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<blockquote type="cite"><span>So it's better to think of a large number of channels but relatively low-power power supplies. Vendors can put several of these in a chassis in some cases. Digital control means there shouldn't be an enormous penalty for additional
channels if the power stays the same, although we will have to run more cables.</span><br>
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<blockquote type="cite"><span> -Stephen</span><br>
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<blockquote type="cite"><span>________________________________________</span><br>
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<blockquote type="cite">
<blockquote type="cite"><span>From: Jay Benesch <benesch@jlab.org></span><br>
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<blockquote type="cite">
<blockquote type="cite"><span>Sent: 23 August 2022 12:09</span><br>
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<blockquote type="cite">
<blockquote type="cite"><span>To: Chase Dubbe; Omar Garza; Joseph Meyers; Will Oren; Mike Bevins</span><br>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite"><span>Cc: ffa_cebaf_collab@jlab.org; Camille Ginsburg; Brooks, Stephen</span><br>
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<blockquote type="cite">
<blockquote type="cite"><span>Subject: Re: [FFA_CEBAF_Collab] [EXTERNAL] Re: FFA corrector concept</span><br>
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<blockquote type="cite"><span>Colleauges,</span><br>
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<blockquote type="cite"><span>In case it wasn't clear: Stephen's response below implies that every</span><br>
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<blockquote type="cite"><span>window frame needs three power supplies, two for the dipoles and one for</span><br>
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<blockquote type="cite"><span>the quad. Including splitters, perhaps 900 power supplies per arc.</span><br>
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<blockquote type="cite"><span>Larger service buildings.</span><br>
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<blockquote type="cite"><span>Jay</span><br>
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<blockquote type="cite"><span>On 8/23/22 11:40, Brooks, Stephen wrote:</span><br>
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<blockquote type="cite"><span>If you have multiple energy beams in the same line, you need more correctors than for a single energy because you are correcting more "degrees of freedom". You can't wait for several cells and cancel an error downstream in a simplistic
way because the beams undergo different phase advances. You'd have to use a complicated set of many correctors over several cells to do it.</span><br>
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<blockquote type="cite"><span>In particular, a dipole X and Y corrector on every magnet ensures all survey errors in the magnet centres can be cancelled out. These placement errors are amplified by the fact the gradients are fairly high in the FFA.</span><br>
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<blockquote type="cite"><span>In CBETA we had half this number: dipole X correctors on the F magnets and Y correctors on the D magnets and still could achieve reasonable, although not perfect, results with 4 beams. So, every magnet in CBETA had an iron frame
but only 2 sides had copper coils.</span><br>
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<blockquote type="cite"><span> -Stephen</span><br>
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<blockquote type="cite"><span>________________________________________</span><br>
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<blockquote type="cite">
<blockquote type="cite"><span>From: Alex Bogacz <bogacz@jlab.org></span><br>
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<blockquote type="cite">
<blockquote type="cite"><span>Sent: 23 August 2022 10:59</span><br>
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<blockquote type="cite"><span>To: Brooks, Stephen</span><br>
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<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Cc: Chase Dubbe; Omar Garza; ffa_cebaf_collab@jlab.org; Jay Benesch; Joseph Meyers; Will Oren; Mike Bevins; Camille Ginsburg</span><br>
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<blockquote type="cite"><span>Subject: Re: [FFA_CEBAF_Collab] [EXTERNAL] Re: FFA corrector concept</span><br>
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<blockquote type="cite"><span>Hi Stephen,</span><br>
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<blockquote type="cite"><span>That initial number came from me; a corrector every other cell….which you feel is too sparse. How about one corrector per cell? I think we need more thorough study, perhaps a MC simulation to quantify.</span><br>
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<blockquote type="cite"><span>We will further tackle it on Friday…Feel free to lead the discussion…</span><br>
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<blockquote type="cite"><span>Thanks.</span><br>
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<blockquote type="cite"><span>Cheers,</span><br>
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<blockquote type="cite"><span>Alex</span><br>
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<blockquote type="cite"><span>___________________________________</span><br>
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<blockquote type="cite">
<blockquote type="cite"><span>S. Alex Bogacz,</span><br>
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<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Accelerator Physics Group Leader</span><br>
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<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Center for Advanced Studies of Accelerators</span><br>
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<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Jefferson Lab</span><br>
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<blockquote type="cite">
<blockquote type="cite"><span>12000 Jefferson Avenue,<x-apple-data-detectors://8></span><br>
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<blockquote type="cite"><span>Newport News, VA 23606<x-apple-data-detectors://8></span><br>
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<blockquote type="cite"><span>___________________________________</span><br>
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<blockquote type="cite"><span>Sent from my iPhone</span><br>
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<blockquote type="cite"><span></span><br>
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<blockquote type="cite"><span>On Aug 23, 2022, at 10:40 AM, Brooks, Stephen via FFA_CEBAF_Collab <ffa_cebaf_collab@jlab.org> wrote:</span><br>
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<blockquote type="cite"><span>100 cells per 180 degree FFA arc would be 200 magnets, and 200 correctors. So for all FFA sections in the facility (two 180 degree arcs), 400 permanent magnets and 400 correctors.</span><br>
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<blockquote type="cite"><span>I think what Jay is saying makes sense too. Not sure where "50" came from.</span><br>
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<blockquote type="cite"><span></span><br>
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<blockquote type="cite"><span> -Stephen</span><br>
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<blockquote type="cite"><span>________________________________________</span><br>
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<blockquote type="cite">
<blockquote type="cite"><span>From: FFA_CEBAF_Collab <ffa_cebaf_collab-bounces@jlab.org> on behalf of Jay Benesch via FFA_CEBAF_Collab <ffa_cebaf_collab@jlab.org></span><br>
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<blockquote type="cite">
<blockquote type="cite"><span>Sent: 22 August 2022 11:42</span><br>
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<blockquote type="cite">
<blockquote type="cite"><span>To: Chase Dubbe; Omar Garza; ffa_cebaf_collab@jlab.org</span><br>
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<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Cc: Joseph Meyers; Mike Bevins; Will Oren; Camille Ginsburg</span><br>
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<blockquote type="cite">
<blockquote type="cite"><span>Subject: Re: [FFA_CEBAF_Collab] FFA corrector concept</span><br>
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<blockquote type="cite"><span>Chase,</span><br>
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<blockquote type="cite"><span>If there are only 50 BD and 50 BF per arc, then 100 assemblies per arc. Since the length of the BD+BF cell is about 125 cm, the arc circumference is ~250 m and the packing fraction is about 90%, I rounded up to 100 cells. I remember
88 and 90 cells per arc mentioned in weekly meetings. The splitters will need correctors as well and there are at least five cells in each of those. Since the splitters are individual lines by definition and there are six at each end of each arc in the present
concept, add 2*6*5 to the number needed, for 150 total per arc. Alex's MMV.</span><br>
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<blockquote type="cite"><span>Jay</span><br>
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<blockquote type="cite"><span>________________________________________</span><br>
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<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>From: Chase Dubbe <cdubbe@jlab.org></span><br>
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<blockquote type="cite"><span>Sent: Monday, August 22, 2022 11:15 AM</span><br>
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<blockquote type="cite">
<blockquote type="cite"><span>To: Omar Garza; Jay Benesch; ffa_cebaf_collab@jlab.org</span><br>
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<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Cc: Will Oren; Camille Ginsburg; Mike Bevins; Joseph Meyers; Alex Bogacz</span><br>
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<blockquote type="cite"><span>Subject: Re: FFA corrector concept</span><br>
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<blockquote type="cite"><span>Good Morning Omar,</span><br>
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<blockquote type="cite"><span>To try to help, the FFA permanent magnets won't have a power requirement, but the Panofsky Quads that will be mounted along with them will. Based on the latest Magnet count sheet, there will be 50 of them per ARC (East/West) and
reviewing Jay's technical write up, they should need 900W per magnet. He did mention that each would require two power supplies.</span><br>
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<blockquote type="cite"><span>With regards to the counts though, there is some discrepancy. Jay, for each of the ARCs, is the number 50 or 100? Looking at your paper, vs the magnet count sheet, you are specifying 100 per ARC vs. the 50. Also, do my assumptions
on power and power supply requirements line up with your specification?</span><br>
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<blockquote type="cite"><span>[cid:e6d9ef9a-552c-471e-b389-b9c5801d6a03]</span><br>
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<blockquote type="cite"><span>*Snap shot from Jay's paper 'FFA Corrector Concept'</span><br>
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<blockquote type="cite"><span> Name L[cm] B[kG] G[kG/cm] Number of magnets</span><br>
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<blockquote type="cite"><span> BD 50 3.1 4.7 200</span><br>
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<blockquote type="cite"><span> BF 50 5.5 1.5 200</span><br>
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<blockquote type="cite"><span>Panofsky window quad, per Jay's sprec 100</span><br>
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<blockquote type="cite"><span>*Cells Taken from 'New Magnet and RF Inventory' Excel</span><br>
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<blockquote type="cite"><span>Thanks,</span><br>
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<blockquote type="cite"><span>Chase</span><br>
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<blockquote type="cite"><span>________________________________</span><br>
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<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>From: Omar Garza <garza@jlab.org></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Sent: Monday, August 22, 2022 10:51 AM</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>To: Jay Benesch <benesch@jlab.org>; Chase Dubbe <cdubbe@jlab.org>; ffa_cebaf_collab@jlab.org <ffa_cebaf_collab@jlab.org></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Cc: Will Oren <oren@jlab.org>; Camille Ginsburg <ginsburg@jlab.org>; Mike Bevins <mbevins@jlab.org>; Joseph Meyers <meyers@jlab.org>; Alex Bogacz <bogacz@jlab.org></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Subject: Re: FFA corrector concept</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Good morning everyone.</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Does someone have the power requirements for the FFAs and new dipoles?</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Thank you.</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>O'</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Omar Garza</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Deputy of Electrical Engineering Systems - Accelerator Reliability</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Thomas Jefferson National Accelerator Facility</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>(757) 269-7257 garza@jlab.org<mailto:garza@jlab.org></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>________________________________</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>From: Jay Benesch <benesch@jlab.org></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Sent: Monday, August 8, 2022 11:41 AM</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>To: Chase Dubbe <cdubbe@jlab.org>; ffa_cebaf_collab@jlab.org <ffa_cebaf_collab@jlab.org></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Cc: Will Oren <oren@jlab.org>; Omar Garza <garza@jlab.org>; Camille Ginsburg <ginsburg@jlab.org>; Mike Bevins <mbevins@jlab.org>; Joseph Meyers <meyers@jlab.org>; Alex Bogacz <bogacz@jlab.org></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Subject: Re: FFA corrector concept</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Chase,</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>It is my understanding that each of the permanent magnets will require</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>one of these correctors. Only two of the three windings per assembly</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>will likely be powered. Hence the estimate of 400 units and 800 power</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>supplies. It seems to me better to build all the units with the three</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>windings and power only two, to simplify fabrication and assembly. And</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>we might need three in some locations. Rabbet joints assumed in the</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>steel to simplify assembly.</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>I'll send you the opc file for this under separate email.</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Jay</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>On 8/8/22 11:27, Chase Dubbe wrote:</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Good Morning Jay,</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>First, thank you for sharing all the other panofsky quad models. I have</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>been out on vacation, so have not had a chance to look through them, but</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>they are greatly appreciated.</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>I am still trying to catch up, but for the cost estimate of these</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Picture Frame Correctors, is the intent to have one per each FODO set of</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>permanent magnets in the FFA line, or will there be more or less? I just</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>want to get a grasp at the quantity so that I can either use the cost</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>estimate numbers Tommy Hiatt had developed, or perhaps go out for an RFI</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>for cost.</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Thanks again for the help,</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Chase Dubbe'</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>------------------------------------------------------------------------</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>*From:* Jay Benesch <benesch@jlab.org></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>*Sent:* Monday, August 8, 2022 10:18 AM</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>*To:* ffa_cebaf_collab@jlab.org <ffa_cebaf_collab@jlab.org></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>*Cc:* Chase Dubbe <cdubbe@jlab.org>; Will Oren <oren@jlab.org>; Omar</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Garza <garza@jlab.org>; Camille Ginsburg <ginsburg@jlab.org></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>*Subject:* FFA corrector concept</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Attached please find a "picture frame" corrector concept which satisfies</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>the requirements Stephen provided Friday. It should suffice for the cost</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>estimate. Comments welcome.</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>_______________________________________________</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>FFA_CEBAF_Collab mailing list</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>FFA_CEBAF_Collab@jlab.org</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>https://mailman.jlab.org/mailman/listinfo/ffa_cebaf_collab</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite"><span>On 8/23/22 11:40, Brooks, Stephen wrote:</span><br>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>If you have multiple energy beams in the same line, you need more correctors than for a single energy because you are correcting more "degrees of freedom". You can't wait for several cells and cancel an error downstream in a simplistic
way because the beams undergo different phase advances. You'd have to use a complicated set of many correctors over several cells to do it.</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>In particular, a dipole X and Y corrector on every magnet ensures all survey errors in the magnet centres can be cancelled out. These placement errors are amplified by the fact the gradients are fairly high in the FFA.</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>In CBETA we had half this number: dipole X correctors on the F magnets and Y correctors on the D magnets and still could achieve reasonable, although not perfect, results with 4 beams. So, every magnet in CBETA had an iron frame
but only 2 sides had copper coils.</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span> -Stephen</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>________________________________________</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>From: Alex Bogacz <bogacz@jlab.org></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Sent: 23 August 2022 10:59</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>To: Brooks, Stephen</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Cc: Chase Dubbe; Omar Garza; ffa_cebaf_collab@jlab.org; Jay Benesch; Joseph Meyers; Will Oren; Mike Bevins; Camille Ginsburg</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Subject: Re: [FFA_CEBAF_Collab] [EXTERNAL] Re: FFA corrector concept</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Hi Stephen,</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>That initial number came from me; a corrector every other cell….which you feel is too sparse. How about one corrector per cell? I think we need more thorough study, perhaps a MC simulation to quantify.</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>We will further tackle it on Friday…Feel free to lead the discussion…</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Thanks.</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Cheers,</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Alex</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>___________________________________</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>S. Alex Bogacz,</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Accelerator Physics Group Leader</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Center for Advanced Studies of Accelerators</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Jefferson Lab</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>12000 Jefferson Avenue,<x-apple-data-detectors://8></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Newport News, VA 23606<x-apple-data-detectors://8></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>___________________________________</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Sent from my iPhone</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>On Aug 23, 2022, at 10:40 AM, Brooks, Stephen via FFA_CEBAF_Collab <ffa_cebaf_collab@jlab.org> wrote:</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>100 cells per 180 degree FFA arc would be 200 magnets, and 200 correctors. So for all FFA sections in the facility (two 180 degree arcs), 400 permanent magnets and 400 correctors.</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>I think what Jay is saying makes sense too. Not sure where "50" came from.</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span> -Stephen</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>________________________________________</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>From: FFA_CEBAF_Collab <ffa_cebaf_collab-bounces@jlab.org> on behalf of Jay Benesch via FFA_CEBAF_Collab <ffa_cebaf_collab@jlab.org></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Sent: 22 August 2022 11:42</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>To: Chase Dubbe; Omar Garza; ffa_cebaf_collab@jlab.org</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Cc: Joseph Meyers; Mike Bevins; Will Oren; Camille Ginsburg</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Subject: Re: [FFA_CEBAF_Collab] FFA corrector concept</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Chase,</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>If there are only 50 BD and 50 BF per arc, then 100 assemblies per arc. Since the length of the BD+BF cell is about 125 cm, the arc circumference is ~250 m and the packing fraction is about 90%, I rounded up to 100 cells. I remember
88 and 90 cells per arc mentioned in weekly meetings. The splitters will need correctors as well and there are at least five cells in each of those. Since the splitters are individual lines by definition and there are six at each end of each arc in the present
concept, add 2*6*5 to the number needed, for 150 total per arc. Alex's MMV.</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Jay</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>________________________________________</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>From: Chase Dubbe <cdubbe@jlab.org></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Sent: Monday, August 22, 2022 11:15 AM</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>To: Omar Garza; Jay Benesch; ffa_cebaf_collab@jlab.org</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Cc: Will Oren; Camille Ginsburg; Mike Bevins; Joseph Meyers; Alex Bogacz</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Subject: Re: FFA corrector concept</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
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</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Good Morning Omar,</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>To try to help, the FFA permanent magnets won't have a power requirement, but the Panofsky Quads that will be mounted along with them will. Based on the latest Magnet count sheet, there will be 50 of them per ARC (East/West) and
reviewing Jay's technical write up, they should need 900W per magnet. He did mention that each would require two power supplies.</span><br>
</blockquote>
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</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
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</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>With regards to the counts though, there is some discrepancy. Jay, for each of the ARCs, is the number 50 or 100? Looking at your paper, vs the magnet count sheet, you are specifying 100 per ARC vs. the 50. Also, do my assumptions
on power and power supply requirements line up with your specification?</span><br>
</blockquote>
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</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>[cid:e6d9ef9a-552c-471e-b389-b9c5801d6a03]</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>*Snap shot from Jay's paper 'FFA Corrector Concept'</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span> Name L[cm] B[kG] G[kG/cm] Number of magnets</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span> BD 50 3.1 4.7 200</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span> BF 50 5.5 1.5 200</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Panofsky window quad, per Jay's sprec 100</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>*Cells Taken from 'New Magnet and RF Inventory' Excel</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Thanks,</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Chase</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>________________________________</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>From: Omar Garza <garza@jlab.org></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Sent: Monday, August 22, 2022 10:51 AM</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>To: Jay Benesch <benesch@jlab.org>; Chase Dubbe <cdubbe@jlab.org>; ffa_cebaf_collab@jlab.org <ffa_cebaf_collab@jlab.org></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Cc: Will Oren <oren@jlab.org>; Camille Ginsburg <ginsburg@jlab.org>; Mike Bevins <mbevins@jlab.org>; Joseph Meyers <meyers@jlab.org>; Alex Bogacz <bogacz@jlab.org></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Subject: Re: FFA corrector concept</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Good morning everyone.</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Does someone have the power requirements for the FFAs and new dipoles?</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Thank you.</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>O'</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Omar Garza</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Deputy of Electrical Engineering Systems - Accelerator Reliability</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Thomas Jefferson National Accelerator Facility</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>(757) 269-7257 garza@jlab.org<mailto:garza@jlab.org></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>________________________________</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>From: Jay Benesch <benesch@jlab.org></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Sent: Monday, August 8, 2022 11:41 AM</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>To: Chase Dubbe <cdubbe@jlab.org>; ffa_cebaf_collab@jlab.org <ffa_cebaf_collab@jlab.org></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Cc: Will Oren <oren@jlab.org>; Omar Garza <garza@jlab.org>; Camille Ginsburg <ginsburg@jlab.org>; Mike Bevins <mbevins@jlab.org>; Joseph Meyers <meyers@jlab.org>; Alex Bogacz <bogacz@jlab.org></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Subject: Re: FFA corrector concept</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Chase,</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>It is my understanding that each of the permanent magnets will require</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>one of these correctors. Only two of the three windings per assembly</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>will likely be powered. Hence the estimate of 400 units and 800 power</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>supplies. It seems to me better to build all the units with the three</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>windings and power only two, to simplify fabrication and assembly. And</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>we might need three in some locations. Rabbet joints assumed in the</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>steel to simplify assembly.</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>I'll send you the opc file for this under separate email.</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Jay</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>On 8/8/22 11:27, Chase Dubbe wrote:</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Good Morning Jay,</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>First, thank you for sharing all the other panofsky quad models. I have</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>been out on vacation, so have not had a chance to look through them, but</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>they are greatly appreciated.</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>I am still trying to catch up, but for the cost estimate of these</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Picture Frame Correctors, is the intent to have one per each FODO set of</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>permanent magnets in the FFA line, or will there be more or less? I just</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>want to get a grasp at the quantity so that I can either use the cost</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>estimate numbers Tommy Hiatt had developed, or perhaps go out for an RFI</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>for cost.</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Thanks again for the help,</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Chase Dubbe'</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>------------------------------------------------------------------------</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>*From:* Jay Benesch <benesch@jlab.org></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>*Sent:* Monday, August 8, 2022 10:18 AM</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>*To:* ffa_cebaf_collab@jlab.org <ffa_cebaf_collab@jlab.org></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>*Cc:* Chase Dubbe <cdubbe@jlab.org>; Will Oren <oren@jlab.org>; Omar</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Garza <garza@jlab.org>; Camille Ginsburg <ginsburg@jlab.org></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>*Subject:* FFA corrector concept</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>Attached please find a "picture frame" corrector concept which satisfies</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>the requirements Stephen provided Friday. It should suffice for the cost</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>estimate. Comments welcome.</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>_______________________________________________</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>FFA_CEBAF_Collab mailing list</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>FFA_CEBAF_Collab@jlab.org</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite"><span>https://mailman.jlab.org/mailman/listinfo/ffa_cebaf_collab</span><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite"><span></span><br>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite"><span>_______________________________________________</span><br>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite"><span>FFA_CEBAF_Collab mailing list</span><br>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite"><span>FFA_CEBAF_Collab@jlab.org</span><br>
</blockquote>
</blockquote>
<blockquote type="cite">
<blockquote type="cite"><span>https://mailman.jlab.org/mailman/listinfo/ffa_cebaf_collab</span><br>
</blockquote>
</blockquote>
<span></span><br>
<span></span><br>
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