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<p class="MsoNormal">We had some issues with the GEMs in Hall A when we think some low momentum protons (<1 GeV) are now in our spectra and causing some highly ionizing events where we had to reduce the gain in order to save the chambers… I was thinking that
we may be in a similar situation with our proton spectra, but I wanted to see what makes it into our acceptance. I think if we start with a very, very low gain and slowly increase, then we would be fine.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b><span style="font-size:12.0pt;color:black">From: </span></b><span style="font-size:12.0pt;color:black">Axel Schmidt <axelschmidt@gwu.edu><br>
<b>Date: </b>Tuesday, April 23, 2024 at 2:31 PM<br>
<b>To: </b>Lucas Harald Ehinger <ehingerl@mit.edu><br>
<b>Cc: </b>Holly Szumila-Vance <hszumila@jlab.org>, Florian Hauenstein <hauenst@jlab.org>, "lad_hallc@jlab.org" <lad_hallc@jlab.org><br>
<b>Subject: </b>Re: [Lad_hallc] [EXTERNAL] Re: LAD meeting Monday April 22 at 11am<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I can take a look at the old simulation to see what we have... Actually would be a useful comparison to whatever Lucas generates. <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Can you clarify what you are looking for? Are you talking about the momentum distribution for signal protons, or the rates and energy spectrum for all proton singles?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">-Axel<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">________________<o:p></o:p></p>
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<p class="MsoNormal">On Apr 23, 2024, at 06:06, Lucas Harald Ehinger <ehingerl@mit.edu> wrote:<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:Helvetica">I don't have this pre-prepared, but I could generate this plot later today. <o:p></o:p></span></p>
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<p class="MsoNormal"><b>From:</b><span class="apple-converted-space"> </span>Lad_hallc <<a href="mailto:lad_hallc-bounces@jlab.org"><span style="color:purple">lad_hallc-bounces@jlab.org</span></a>> on behalf of Holly Szumila-Vance <<a href="mailto:hszumila@jlab.org"><span style="color:purple">hszumila@jlab.org</span></a>><br>
<b>Sent:</b><span class="apple-converted-space"> </span>Tuesday, April 23, 2024 6:02:04 AM<br>
<b>To:</b><span class="apple-converted-space"> </span><a href="mailto:hauenst@jlab.org"><span style="color:purple">hauenst@jlab.org</span></a><span class="apple-converted-space"> </span><<a href="mailto:hauenst@jlab.org"><span style="color:purple">hauenst@jlab.org</span></a>>;<span class="apple-converted-space"> </span><a href="mailto:lad_hallc@jlab.org"><span style="color:purple">lad_hallc@jlab.org</span></a><span class="apple-converted-space"> </span><<a href="mailto:lad_hallc@jlab.org"><span style="color:purple">lad_hallc@jlab.org</span></a>><br>
<b>Subject:</b><span class="apple-converted-space"> </span>Re: [Lad_hallc] LAD meeting Monday April 22 at 11am<span style="font-size:9.0pt;font-family:Helvetica"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:Helvetica"> <o:p></o:p></span></p>
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<p class="MsoNormal">Hi,<o:p></o:p></p>
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<p class="xmsonormal" style="margin:0in;margin-bottom:.0001pt"> <o:p></o:p></p>
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<p class="MsoNormal">Can someone post a plot with the range of proton momenta that we will pass through our detectors? We’ve had some very ….um I will call it insightful…..experiences in Hall A with protons in the GEMs recently.<o:p></o:p></p>
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<p class="xmsonormal" style="margin:0in;margin-bottom:.0001pt"> <o:p></o:p></p>
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<p class="MsoNormal">Thanks,<o:p></o:p></p>
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<p class="MsoNormal">Holly<o:p></o:p></p>
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<p class="xmsonormal" style="margin:0in;margin-bottom:.0001pt"> <o:p></o:p></p>
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<p class="MsoNormal"><b><span style="font-size:12.0pt">From:<span class="apple-converted-space"> </span></span></b><span style="font-size:12.0pt">Lad_hallc <<a href="mailto:lad_hallc-bounces@jlab.org"><span style="color:purple">lad_hallc-bounces@jlab.org</span></a>>
on behalf of Florian Hauenstein <<a href="mailto:hauenst@jlab.org"><span style="color:purple">hauenst@jlab.org</span></a>><br>
<b>Date:<span class="apple-converted-space"> </span></b>Friday, April 19, 2024 at 10:41 PM<br>
<b>To:<span class="apple-converted-space"> </span></b>"<a href="mailto:lad_hallc@jlab.org"><span style="color:purple">lad_hallc@jlab.org</span></a>" <<a href="mailto:lad_hallc@jlab.org"><span style="color:purple">lad_hallc@jlab.org</span></a>><br>
<b>Subject:<span class="apple-converted-space"> </span></b>[Lad_hallc] LAD meeting Monday April 22 at 11am</span><o:p></o:p></p>
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<p class="xmsonormal" style="margin:0in;margin-bottom:.0001pt"> <o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:Aptos">Dear all,</span><o:p></o:p></p>
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<p class="xmsonormal" style="margin:0in;margin-bottom:.0001pt"><span style="font-size:12.0pt;font-family:Aptos"> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:Aptos">We will have our LAD meeting</span><span style="font-size:12.0pt;color:#242424"> Monday April 22 at 11am at the usual zoom<span class="apple-converted-space"> </span></span><span style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#242424"><a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__mit.zoom.us_j_97008559046&d=DwMFAg&c=CJqEzB1piLOyyvZjb8YUQw&r=asg_QFxP0OVXyAZ19zktE0kdc2lZ630Ih8VdeKCUm6w&m=9dgKJS97PlKfw7kg62BOwN4WlxG63N3kxdYLVLSVzDias98dXn9MGkUyxuRvG3-r&s=t-8DHL7-lVMW3Cj_6-CdA2HTV7qBFHjQH5MO-gg6ldY&e="><span style="color:purple">https://mit.zoom.us/j/97008559046</span></a></span><span style="font-family:"Arial",sans-serif;color:#222222">.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:Helvetica"> <o:p></o:p></span></p>
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<p><span style="font-size:9.0pt;font-family:Aptos"> </span><span style="font-size:12.0pt;font-family:Aptos;color:#222222">Agenda:</span><span style="font-size:9.0pt;font-family:Helvetica"><o:p></o:p></span></p>
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<span style="font-size:12.0pt">GEM update</span><o:p></o:p></li></ul>
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<span style="font-size:12.0pt">LAD bar update</span><o:p></o:p></li></ul>
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<span style="font-size:12.0pt">Other updates</span><o:p></o:p></li></ul>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:Aptos"> </span><span style="font-size:9.0pt;font-family:Helvetica"><o:p></o:p></span></p>
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<p><span style="font-size:12.0pt;font-family:Aptos">Best,</span><span style="font-size:9.0pt;font-family:Helvetica"><o:p></o:p></span></p>
<p><span style="font-size:12.0pt;font-family:Aptos">Florian</span><span style="font-size:9.0pt;font-family:Helvetica"><o:p></o:p></span></p>
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<p class="xmsonormal" style="margin:0in;margin-bottom:.0001pt"><span style="font-size:12.0pt;font-family:Aptos"> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:Helvetica">_______________________________________________<br>
Lad_hallc mailing list<br>
</span><a href="mailto:Lad_hallc@jlab.org"><span style="font-size:9.0pt;font-family:Helvetica;color:purple">Lad_hallc@jlab.org</span></a><span style="font-size:9.0pt;font-family:Helvetica"><br>
</span><a href="https://mailman.jlab.org/mailman/listinfo/lad_hallc"><span style="font-size:9.0pt;font-family:Helvetica;color:purple">https://mailman.jlab.org/mailman/listinfo/lad_hallc</span></a><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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