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We haven't change the raster configuration yet, but we are close to (run is near to end).</div>
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Maxime is in the CH ready to proceed with the changes. <br>
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So, my question is: change to <br>
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Vpp = 2.2V (X/Y);</div>
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X_off = 0.1 <br>
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Y_off = -0.1<br>
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or a last minute suggestion (based on Maurik's) from Sebastion and/or Eugene</div>
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Cheers</div>
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-Carlos<br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Rgc <rgc-bounces@jlab.org> on behalf of Maurik Holtrop <maurik@physics.unh.edu><br>
<b>Sent:</b> Wednesday, June 22, 2022 3:50 PM<br>
<b>To:</b> Sebastian Kuhn <kuhn@jlab.org><br>
<b>Cc:</b> rgc@jlab.org <rgc@jlab.org>; Eugene Pasyuk <pasyuk@jlab.org><br>
<b>Subject:</b> [Rgc] [EXTERNAL] Re: RGC News</font>
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<div class="" style="word-wrap:break-word; line-break:after-white-space">Hi Sebastian,
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<div class="">I thought I'd play with this a little. Saving the RasterMon histograms to a root file ("file" -> "Save Histogram File..."), and</div>
<div class="">then dividing the Raster_xy with the RasterPulser_xy to try to avoid any rastering effects. You can see a bit of an enhancement at the edges, but it becomes more clear if the histograms are rebinned first (factor of 5 in x and y) which removes
any features that are caused by binning and the FADC being integer values.</div>
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<div class="">It looks like we are hitting the target cup at the top and also at the bottom right. See the attached file. So maybe we do not want to move too much to the right.</div>
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<div class="">On Jun 22, 2022, at 2:30 PM, Sebastian Kuhn <<a href="mailto:kuhn@jlab.org" class="">kuhn@jlab.org</a>> wrote:</div>
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<div class="" style="word-wrap:break-word; line-break:after-white-space">We could try 2.2 Vpp on both x and y, and at the same time add an offset of -0.1 V to y to lower the beam a little. That way we would avoid the void at top and still raster over the “good
part” of the target.
<div class="">Similarly, we could increase the offset on x to +0.1 V.</div>
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<div class="">Finally, on an unrelated note, we should ask MCC to deliver 4 nA on the FC, not 3.6 or even less.</div>
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<div class="">- Sebastian<br class="">
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<div class="">On Jun 22, 2022, at 1:52 PM, Eugene Pasyuk <<a href="mailto:pasyuk@jlab.org" class="">pasyuk@jlab.org</a>> wrote:</div>
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Yes, we are touching the wall on the top slightly. The void is real, less material there. Shal we reduce the size for the next run?</div>
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-Eugene</div>
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<b class="">From:</b><span class="x_x_Apple-converted-space"> </span>Sebastian Kuhn <<a href="mailto:kuhn@jlab.org" class="" style="color:blue; text-decoration:underline">kuhn@jlab.org</a>><span class="x_x_Apple-converted-space"> </span><br class="">
<b class="">Sent:</b><span class="x_x_Apple-converted-space"> </span>Wednesday, June 22, 2022 13:49<br class="">
<b class="">To:</b><span class="x_x_Apple-converted-space"> </span>Eugene Pasyuk <<a href="mailto:pasyuk@jlab.org" class="" style="color:blue; text-decoration:underline">pasyuk@jlab.org</a>><br class="">
<b class="">Cc:</b><span class="x_x_Apple-converted-space"> </span>Carlos Ayerbe Gayoso <<a href="mailto:gayoso@jlab.org" class="" style="color:blue; text-decoration:underline">gayoso@jlab.org</a>>;<span class="x_x_Apple-converted-space"> </span><a href="mailto:rgc@jlab.org" class="" style="color:blue; text-decoration:underline">rgc@jlab.org</a><br class="">
<b class="">Subject:</b><span class="x_x_Apple-converted-space"> </span>Re: [Rgc] RGC News</div>
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OR, there is some settling of target material creating a void at the top of the cell. (we MAY be clipping the target cell at the very edge in y…) </div>
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On Jun 22, 2022, at 1:41 PM, Eugene Pasyuk <<a href="mailto:pasyuk@jlab.org" class="" style="color:blue; text-decoration:underline">pasyuk@jlab.org</a>> wrote:</div>
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It looks like we are a bit overrastering. I think we should reduce the size a bit. Maybe change Vpp from 2.4 to 2.3 V.</div>
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-Eugene</div>
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<b class="">From:</b><span class="x_x_apple-converted-space"> </span>Rgc <<a href="mailto:rgc-bounces@jlab.org" class="" style="color:blue; text-decoration:underline">rgc-bounces@jlab.org</a>><span class="x_x_apple-converted-space"> </span><b class="">On Behalf
Of<span class="x_x_apple-converted-space"> </span></b>Carlos Ayerbe Gayoso<br class="">
<b class="">Sent:</b><span class="x_x_apple-converted-space"> </span>Wednesday, June 22, 2022 12:02<br class="">
<b class="">To:</b><span class="x_x_apple-converted-space"> </span><a href="mailto:rgc@jlab.org" class="" style="color:blue; text-decoration:underline">rgc@jlab.org</a><br class="">
<b class="">Subject:</b><span class="x_x_apple-converted-space"> </span>[Rgc] RGC News</div>
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<span class="" style="font-size:12pt">Hello RGC-ers</span></div>
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<span class="" style="font-size:12pt">starting at 1:30 (during or after the MCC meeting) there will be a new Sheriff in town (kinda).</span></div>
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<span class="" style="font-size:12pt">I guess that having the meeting at 14:00 will be a bit tight.<span class="x_x_apple-converted-space"> </span><br class="">
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So, I propose to delay the meeting 30 min --> 14:30h. I believe there is no big conflict with the CLAS collaboration meeting (well, I should participate in the membership committee briefly)</span></div>
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<span class="" style="font-size:12pt">Please let me know if there is a word against this change for today</span></div>
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<span class="" style="font-size:12pt">Cheers</span></div>
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<span class="" style="font-size:12pt">your humble RC</span></div>
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<span class="" style="font-size:12pt">-Carlos</span></div>
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<span class="" style="font-size:12pt">-------------------------------------------------</span></div>
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<span class="" style="font-size:12pt">If you receive this e-mail after hours, during a weekend, or on a holiday,</span></div>
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