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Just for info: <br>
<br>
Beam has been down since 4:20, see RSEP8A tripped off <a
class="moz-txt-link-freetext"
href="https://cebaf.jlab.org/dtm/open-events?event_id=17072">https://cebaf.jlab.org/dtm/open-events?event_id=17072</a><br>
<br>
<br>
<div class="moz-cite-prefix">On 02.10.22 20:23, Christopher Keith
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:MN2PR09MB57703B559F71C7AE3B533631B35B9@MN2PR09MB5770.namprd09.prod.outlook.com">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<div style="font-family: inherit; font-size: inherit; color:
rgb(0, 0, 0);">Yes, switch tomorrow to carbon will be ok. </div>
<div style="font-family: inherit; font-size: inherit; color:
rgb(0, 0, 0);"><br>
</div>
<div style="font-family: inherit; font-size: inherit; color:
rgb(0, 0, 0);">Chris</div>
<hr style="display:inline-block;width:98%" tabindex="-1">
<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt"
face="Calibri, sans-serif" color="#000000"><b>From:</b>
Sebastian Kuhn <a class="moz-txt-link-rfc2396E" href="mailto:kuhn@jlab.org"><kuhn@jlab.org></a><br>
<b>Sent:</b> Sunday, October 2, 2022 6:00 PM<br>
<b>To:</b> Akbar, Zulkaida (za2hd) <a class="moz-txt-link-rfc2396E" href="mailto:za2hd@virginia.edu"><za2hd@virginia.edu></a><br>
<b>Cc:</b> Christopher Keith <a class="moz-txt-link-rfc2396E" href="mailto:ckeith@jlab.org"><ckeith@jlab.org></a>;
<a class="moz-txt-link-abbreviated" href="mailto:rgc@jlab.org">rgc@jlab.org</a> <a class="moz-txt-link-rfc2396E" href="mailto:rgc@jlab.org"><rgc@jlab.org></a>; James Brock
<a class="moz-txt-link-rfc2396E" href="mailto:jbrock@jlab.org"><jbrock@jlab.org></a>; James Maxwell
<a class="moz-txt-link-rfc2396E" href="mailto:jmaxwell@jlab.org"><jmaxwell@jlab.org></a><br>
<b>Subject:</b> Re: [Rgc] [EXTERNAL] Target Change Tomorrow
(Sunday)?</font>
<div> </div>
</div>
<div class="" style="word-wrap:break-word;
line-break:after-white-space">Looking at the present whiteboard,
it appears that the startup for Hall A is now scheduled for
TUESDAY, 10/4. The next potential for PLANNED downtime is
Monday, 10/10 (Hall A configuration change) or the following
Tuesday (Pass change). Of course, with severe flooding and more
nasty weather headed our way, we can’t be too sure if/when the
beam will be down even sooner than Tuesday. However, if things
remain as presently scheduled, my vote would be to
<div class="">1) Change to a C target tomorrow, Monday (at a
mutually agreeable time for the target group), and</div>
<div class="">2) Change to NH3 while also reversing the solenoid
polarity on Tuesday. </div>
<div class=""><br class="">
</div>
<div class="">So we need to tell RadCon that we need them both
days. Assuming it’s o.k. with the target folks, we should
shoot for the canonical 9:00 a.m. start (bring Hall to
controlled access, have RadCon do their thing, then start
target work). Does this sound o.k.?</div>
<div class=""><br class="">
</div>
<div class="">- Sebastian<br class="">
<div><br class="">
<blockquote type="cite" class="">
<div class="">On Oct 2, 2022, at 4:26 PM, Akbar, Zulkaida
(za2hd) <<a href="mailto:za2hd@virginia.edu"
class="moz-txt-link-freetext" moz-do-not-send="true">za2hd@virginia.edu</a>>
wrote:</div>
<br class="x_Apple-interchange-newline">
<div class="">
<div class="x_elementToProof" style="font-style:normal;
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font-family:Calibri,Arial,Helvetica,sans-serif;
font-size:12pt">
According to PD, we don't know yet whether there will
be maintenance next week or not. If the choice is
between NH3/ND3, I think NH3 is better due to the
accumulated statistics. There was an option about
Carbon as well. But, in my opinion, NH3 is a better
option. I hope we can decide before 7.45 AM tomorrow. </div>
<div class="x_elementToProof" style="font-style:normal;
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<br class="">
</div>
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Zulkaida</div>
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<div id="x_divRplyFwdMsg" dir="ltr" class=""
style="font-family:Helvetica; font-size:12px;
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<font class="" style="font-size:11pt" face="Calibri,
sans-serif"><b class="">From:</b><span
class="x_Apple-converted-space"> </span>Rgc <<a
href="mailto:rgc-bounces@jlab.org"
class="moz-txt-link-freetext"
moz-do-not-send="true">rgc-bounces@jlab.org</a>>
on behalf of Christopher Keith <<a
href="mailto:ckeith@jlab.org"
class="moz-txt-link-freetext"
moz-do-not-send="true">ckeith@jlab.org</a>><br
class="">
<b class="">Sent:</b><span
class="x_Apple-converted-space"> </span>Sunday,
October 2, 2022 6:52 AM<br class="">
<b class="">To:</b><span
class="x_Apple-converted-space"> </span><a
href="mailto:rgc@jlab.org"
class="moz-txt-link-freetext"
moz-do-not-send="true">rgc@jlab.org</a> <<a
href="mailto:rgc@jlab.org"
class="moz-txt-link-freetext"
moz-do-not-send="true">rgc@jlab.org</a>><br
class="">
<b class="">Subject:</b><span
class="x_Apple-converted-space"> </span>Re: [Rgc]
[EXTERNAL] Target Change Tomorrow (Sunday)?</font>
<div class=""> </div>
</div>
<div class="" style="font-family:Helvetica;
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<div class="" style="margin-top:0px;
margin-bottom:0px">A target change on Monday during
the day shift will be fine.</div>
<div class="" style="margin-top:0px;
margin-bottom:0px"><br class="">
</div>
<div class="" style="margin-top:0px;
margin-bottom:0px">I'll assume it will be either NH3
or ND3, depending on the relative amount of data on
the two. The RC should announce this at the morning
meeting and let RadCon know that we'll need their
support. Request a Controlled Access if there are
others that want to perform work in the hall. Will
there be an accelerator maintenance day later this
week?</div>
<div class="" style="margin-top:0px;
margin-bottom:0px"><br class="">
</div>
<div class="" style="margin-top:0px;
margin-bottom:0px">Chris<br class="">
</div>
<div class="" style="margin-top:0px;
margin-bottom:0px"><br class="">
</div>
<div class="" style="margin-top:0px;
margin-bottom:0px"><br class="">
</div>
<div class="x_x_moz-cite-prefix">On 10/1/22 9:52 PM,
Akbar, Zulkaida (za2hd) wrote:<br class="">
</div>
<blockquote type="cite" class="">
<div class="x_x_elementToProof"
style="font-family:Calibri,Arial,Helvetica,sans-serif;
font-size:12pt">
Dear Sebastian,</div>
<div class="x_x_elementToProof"
style="font-family:Calibri,Arial,Helvetica,sans-serif;
font-size:12pt">
<br class="">
</div>
<div class="x_x_elementToProof"
style="font-family:Calibri,Arial,Helvetica,sans-serif;
font-size:12pt">
You are right, the first 4 hours were wonderful
(Run 17118 collected 100 M events in less than 4
hours) but now the beam has been off since 9.15.
So, we will run CH2 IN until tomorrow around noon
and then flip to OUT and run OUT configuration
until Monday morning. And yes, let's discuss about
what target to switch to on Monday and whether we
should flip the solenoid polarity. </div>
<div class="x_x_elementToProof"
style="font-family:Calibri,Arial,Helvetica,sans-serif;
font-size:12pt">
<br class="">
</div>
<div class="x_x_elementToProof"
style="font-family:Calibri,Arial,Helvetica,sans-serif;
font-size:12pt">
<br class="">
</div>
<div class="x_x_elementToProof"
style="font-family:Calibri,Arial,Helvetica,sans-serif;
font-size:12pt">
Zulkaida</div>
<hr tabindex="-1" class=""
style="display:inline-block; width:624.25px">
<div id="x_x_divRplyFwdMsg" dir="ltr" class=""><font
class="" style="font-size:11pt" face="Calibri,
sans-serif"><b class="">From:</b><span
class="x_Apple-converted-space"> </span>Sebastian
Kuhn<span class="x_Apple-converted-space"> </span><a
class="x_x_moz-txt-link-rfc2396E"
href="mailto:kuhn@jlab.org"
moz-do-not-send="true"><kuhn@jlab.org></a><br
class="">
<b class="">Sent:</b><span
class="x_Apple-converted-space"> </span>Saturday,
October 1, 2022 10:41 PM<br class="">
<b class="">To:</b><span
class="x_Apple-converted-space"> </span>Akbar,
Zulkaida (za2hd)<span
class="x_Apple-converted-space"> </span><a
class="x_x_moz-txt-link-rfc2396E"
href="mailto:za2hd@virginia.edu"
moz-do-not-send="true"><za2hd@virginia.edu></a><br
class="">
<b class="">Cc:</b><span
class="x_Apple-converted-space"> </span><a
class="x_x_moz-txt-link-abbreviated
moz-txt-link-freetext"
href="mailto:rgc@jlab.org"
moz-do-not-send="true">rgc@jlab.org</a><span
class="x_Apple-converted-space"> </span><a
class="x_x_moz-txt-link-rfc2396E"
href="mailto:rgc@jlab.org"
moz-do-not-send="true"><rgc@jlab.org></a><br
class="">
<b class="">Subject:</b><span
class="x_Apple-converted-space"> </span>Re:
[Rgc] [EXTERNAL] Target Change Tomorrow
(Sunday)?</font>
<div class=""> </div>
</div>
<div class="" style="word-wrap:break-word;
line-break:after-white-space">Hi Zulkaida,
<div class=""><br class="">
</div>
<div class="">as far as I can tell, over the last
6 hours (since beam finally came back) we have
taken 120 M events corresponding to 0.09 mC
integrated charge. To get the desired quota on
CH2, we would need nearly 8x as much - so it
looks to me like tomorrow will be too early to
switch targets. I would propose we keep running
with CH2 until Monday morning. Meanwhile, we can
use this thread to discuss what we should do on
Monday - what target to switch to, and whether
to flip the solenoid polarity.</div>
<div class=""><br class="">
</div>
<div class="">More tomorrow - Sebastian<br
class="">
<div class=""><br class="">
<blockquote type="cite" class="">
<div class="">On Oct 1, 2022, at 7:06 PM,
Akbar, Zulkaida (za2hd) <<a
href="mailto:za2hd@virginia.edu"
class="x_x_moz-txt-link-freetext
moz-txt-link-freetext"
moz-do-not-send="true">za2hd@virginia.edu</a>>
wrote:</div>
<br class="x_x_x_Apple-interchange-newline">
<div class="">
<div class="x_x_x_elementToProof"
style="font-style:normal;
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Dear All,</div>
<div class="x_x_x_elementToProof"
style="font-style:normal;
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<br class="">
</div>
<div class="x_x_x_elementToProof"
style="font-style:normal;
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font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">
I am sorry to make a new email thread.
But there is good news. We got the beam,
and it has been stable. In 4 hours, we
collected ~100 M events (Run 17118). If
the beam keeps stable, We will have ~
400 M events (200 M HWP In + 200 M HWP
Out) by tomorrow morning. So, should we
change the target tomorrow during the
day shift? What kind of target? Let's
have a discussion and decision here.</div>
<div class="x_x_x_elementToProof"
style="font-style:normal;
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<br class="">
</div>
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<br class="">
</div>
<div class="x_x_x_elementToProof"
style="font-style:normal;
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Best Regards,</div>
<div class="x_x_x_elementToProof"
style="font-style:normal;
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<br class="">
</div>
<div class="x_x_x_elementToProof"
style="font-style:normal;
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Zulkaida Akbar<br class="">
</div>
<span class=""
style="font-family:TimesNewRomanPSMT;
font-size:12px; font-style:normal;
font-variant-caps:normal;
font-weight:400; letter-spacing:normal;
text-align:start; text-indent:0px;
text-transform:none; white-space:normal;
word-spacing:0px; text-decoration:none;
float:none; display:inline!important">_______________________________________________</span><br
class=""
style="font-family:TimesNewRomanPSMT;
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<span class=""
style="font-family:TimesNewRomanPSMT;
font-size:12px; font-style:normal;
font-variant-caps:normal;
font-weight:400; letter-spacing:normal;
text-align:start; text-indent:0px;
text-transform:none; white-space:normal;
word-spacing:0px; text-decoration:none;
float:none; display:inline!important">Rgc
mailing list</span><br class=""
style="font-family:TimesNewRomanPSMT;
font-size:12px; font-style:normal;
font-variant-caps:normal;
font-weight:400; letter-spacing:normal;
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word-spacing:0px; text-decoration:none">
<a href="mailto:Rgc@jlab.org"
class="x_x_moz-txt-link-freetext
moz-txt-link-freetext"
style="font-family:TimesNewRomanPSMT;
font-size:12px; font-style:normal;
font-variant-caps:normal;
font-weight:400; letter-spacing:normal;
text-align:start; text-indent:0px;
text-transform:none; white-space:normal;
word-spacing:0px" moz-do-not-send="true">Rgc@jlab.org</a><br
class=""
style="font-family:TimesNewRomanPSMT;
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word-spacing:0px; text-decoration:none">
<a
href="https://mailman.jlab.org/mailman/listinfo/rgc"
class="x_x_moz-txt-link-freetext
moz-txt-link-freetext"
style="font-family:TimesNewRomanPSMT;
font-size:12px; font-style:normal;
font-variant-caps:normal;
font-weight:400; letter-spacing:normal;
text-align:start; text-indent:0px;
text-transform:none; white-space:normal;
word-spacing:0px" moz-do-not-send="true">https://mailman.jlab.org/mailman/listinfo/rgc</a></div>
</blockquote>
</div>
<br class="">
</div>
</div>
<br class="">
<fieldset class="x_x_moz-mime-attachment-header"></fieldset>
<pre class="x_x_moz-quote-pre">_______________________________________________
Rgc mailing list
<a class="x_x_moz-txt-link-abbreviated moz-txt-link-freetext" href="mailto:Rgc@jlab.org" moz-do-not-send="true">Rgc@jlab.org</a>
<a class="x_x_moz-txt-link-freetext moz-txt-link-freetext" href="https://mailman.jlab.org/mailman/listinfo/rgc" moz-do-not-send="true">https://mailman.jlab.org/mailman/listinfo/rgc</a>
</pre>
</blockquote>
</div>
<span class="" style="font-family:Helvetica;
font-size:12px; font-style:normal;
font-variant-caps:normal; font-weight:400;
letter-spacing:normal; text-align:start;
text-indent:0px; text-transform:none;
white-space:normal; word-spacing:0px;
text-decoration:none; float:none;
display:inline!important">_______________________________________________</span><br
class="" style="font-family:Helvetica; font-size:12px;
font-style:normal; font-variant-caps:normal;
font-weight:400; letter-spacing:normal;
text-align:start; text-indent:0px;
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word-spacing:0px; text-decoration:none">
<span class="" style="font-family:Helvetica;
font-size:12px; font-style:normal;
font-variant-caps:normal; font-weight:400;
letter-spacing:normal; text-align:start;
text-indent:0px; text-transform:none;
white-space:normal; word-spacing:0px;
text-decoration:none; float:none;
display:inline!important">Rgc mailing list</span><br
class="" style="font-family:Helvetica; font-size:12px;
font-style:normal; font-variant-caps:normal;
font-weight:400; letter-spacing:normal;
text-align:start; text-indent:0px;
text-transform:none; white-space:normal;
word-spacing:0px; text-decoration:none">
<span class="" style="font-family:Helvetica;
font-size:12px; font-style:normal;
font-variant-caps:normal; font-weight:400;
letter-spacing:normal; text-align:start;
text-indent:0px; text-transform:none;
white-space:normal; word-spacing:0px;
text-decoration:none; float:none;
display:inline!important"><a
href="mailto:Rgc@jlab.org"
class="moz-txt-link-freetext" moz-do-not-send="true">Rgc@jlab.org</a></span><br
class="" style="font-family:Helvetica; font-size:12px;
font-style:normal; font-variant-caps:normal;
font-weight:400; letter-spacing:normal;
text-align:start; text-indent:0px;
text-transform:none; white-space:normal;
word-spacing:0px; text-decoration:none">
<span class="" style="font-family:Helvetica;
font-size:12px; font-style:normal;
font-variant-caps:normal; font-weight:400;
letter-spacing:normal; text-align:start;
text-indent:0px; text-transform:none;
white-space:normal; word-spacing:0px;
text-decoration:none; float:none;
display:inline!important"><a
href="https://mailman.jlab.org/mailman/listinfo/rgc"
class="moz-txt-link-freetext" moz-do-not-send="true">https://mailman.jlab.org/mailman/listinfo/rgc</a></span></div>
</blockquote>
</div>
<br class="">
</div>
</div>
<br>
<fieldset class="moz-mime-attachment-header"></fieldset>
<pre class="moz-quote-pre" wrap="">_______________________________________________
Rgc mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Rgc@jlab.org">Rgc@jlab.org</a>
<a class="moz-txt-link-freetext" href="https://mailman.jlab.org/mailman/listinfo/rgc">https://mailman.jlab.org/mailman/listinfo/rgc</a>
</pre>
</blockquote>
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