Difference between revisions of "AIOP May 6, 2024"

From epsciwiki
Jump to navigation Jump to search
(Created page with "The current weekly meeting time is every other Monday at 13:00 US/Eastern === Connection Info: === <div class="toccolours mw-collapsible mw-collapsed"> You can connect using...")
 
 
(3 intermediate revisions by the same user not shown)
Line 67: Line 67:
 
=== Minutes ===
 
=== Minutes ===
 
<!-- Attendees: David L., Thomas B., Torri J., Patrick M., Jiawei G., Naomi J., Malachi S., Armen K. -->
 
<!-- Attendees: David L., Thomas B., Torri J., Patrick M., Jiawei G., Naomi J., Malachi S., Armen K. -->
 +
<ul>
 +
    <li>Reviewed previous minutes:
 +
        <ul>
 +
            <li>Contention in nudge counts between patrick and jiawei’s algorithms</li>
 +
            <li>Slides from last time have been uploaded</li>
 +
        </ul>
 +
    </li>
 +
    <li>Project Progress
 +
        <ul>
 +
            <li>[https://wiki.jlab.org/epsciwiki/images/6/66/Aiop_2024_05_06.pdf Patrick shared slides]
 +
                <ul>
 +
                    <li>Jiawei had 1123 nudge events vs 1241 for Patrick (~10% down from much greater)</li>
 +
                    <li>Looking over all spring 2020 (double check…may be 2018 fall)
 +
                        <ul>
 +
                            <li>Some discrepancies solved
 +
                                <ul>
 +
                                    <li>Beam down times with nudge events</li>
 +
                                    <li>@is_dirc_production and @status_approved tags not used before</li>
 +
                                    <li>10 second window since goni changes</li>
 +
                                </ul>
 +
                            </li>
 +
                            <li>Still 10% difference
 +
                                <ul>
 +
                                    <li>Going to look event by event</li>
 +
                                </ul>
 +
                            </li>
 +
                            <li>David: Are the remaining events overlapping?
 +
                                <ul>
 +
                                    <li>Patrick: a couple hundred unique to each set. Maybe the timing (tagging) is slightly off</li>
 +
                                </ul>
 +
                            </li>
 +
                            <li>Thomas: any other variables to tag events
 +
                                <ul>
 +
                                    <li>Patrick: yeah maybe duration, or end times. Etc.</li>
 +
                                </ul>
 +
                            </li>
 +
                            <li>Slide 2 on Livingston c
 +
                                <ul>
 +
                                    <li>Tried to confirm c=k/gEo(...) using Hovanes script</li>
 +
                                    <li>The script doesn’t seem to map pitch and yaw to delta c</li>
 +
                                    <li>Hovanes needs to look at formula to agree. Looking at the formula x axis of slide 3. Patrick will provide this talk and the derivation for confirmation</li>
 +
                                    <li>45/125 vs 0/90 may be problematic</li>
 +
                                    <li>Naomi: pass the numbers from a small subset of events to hovanes?
 +
                                        <ul>
 +
                                            <li>Agreed to hand over the numbers</li>
 +
                                        </ul>
 +
                                    </li>
 +
                                </ul>
 +
                            </li>
 +
                        </ul>
 +
                    </li>
 +
                </ul>
 +
            </li>
 +
            <li>[https://wiki.jlab.org/epsciwiki/images/5/57/20240506.pdf Jiawei showed slides]
 +
                <ul>
 +
                    <li>Some nudges were alignment change oopse</li>
 +
                    <li>Measured drift amounts (from start and from nominal)</li>
 +
                    <li>Spring 2020 looks best</li>
 +
                    <li>Hovanes notes the number used as “nominal” really used as fit starting point.</li>
 +
                    <li>Naomi: wasn’t fall 2018 had a flat top and needed a new spot?</li>
 +
                    <li>Hovanes: bottom line: don’t use CBREM:REQ_EDGE</li>
 +
                    <li>Naomi: may be able to get the required from Alex wiki</li>
 +
                </ul>
 +
            </li>
 +
            <li>How is the beam spot determined</li>
 +
                <ul>
 +
                  <li> Naomi: look for most uniform thickness place</li>
 +
                  <li>Looking at Richards calculator</li>
 +
                  <li>There may be a way to change from goni pitch/yaw x y to diamond spot. Hovanes thinks both Richard and hall look at beam spot from the same side. Some radiators are missing from the dropdown</li>
 +
                  <li>Hovanes: you need Zygo plot not beamspot</li>
 +
                  <li>David: proposal mentions beamspot to do digi twin</li>
 +
                  <li>Patrick: No reliable offsets right Hovanes?</li>
 +
                  <li>Hovanes: no reliable offset</li>
 +
                  <li>Hovanes sent a link: <a href="https://docs.google.com/spreadsheets/d/1v2lTIeHomF46NVSnvGhSi8oYJj6Tkd3zv341_EqYlrs/edit#gid=0">https://docs.google.com/spreadsheets/d/1v2lTIeHomF46NVSnvGhSi8oYJj6Tkd3zv341_EqYlrs/edit#gid=0</a></li>
 +
                  <li>We looked at an example Zygo plot</li>
 +
                </ul>
 +
            <li>Patrick asked Hovanes about the use of the script.</li>
 +
                <ul>
 +
                <li>Hovanes: yes it is used. Buried in scripts and scripts</li>
 +
                <li>What is the process</li>
 +
                <li>Hovanes: shift worker looks and clicks a button and it shifts the goni. The button click runs the script to know how to adjust the goni</li>
 +
                </ul>
 +
            <li>PIER activities</li>
 +
            <ul>
 +
                <li>Meeting with Lisa biweekly</li>
 +
                <li>~30 kids on chrome books</li>
 +
                <li>Need to reserve F113</li>
 +
                <li>Thomas working on draft agenda</li>
 +
            </ul>
 +
        </ul>
 +
    </li>
 +
</ul>
 +
  
 
==== Action Items ====
 
==== Action Items ====

Latest revision as of 18:33, 20 May 2024

The current weekly meeting time is every other Monday at 13:00 US/Eastern

Connection Info:

You can connect using ZOOM Video conferencing (ID: 161 588 8669). (Click "Expand" to the right for details -->):

One tap mobile: US: +16692545252,,1602484178# or +16468287666,,1602484178#

Meeting URL: https://jlab-org.zoomgov.com/j/1615888669?pwd=MnhGVUhpeEd3NVpnTGxoZHJManNBdz09&from=addon
Meeting ID: 161 588 8669
Passcode: 561441

Join by Telephone
For higher quality, dial a number based on your current location.
Dial: +1 669 254 5252 US (San Jose)
+1 646 828 7666 US (New York)
+1 646 964 1167 US (US Spanish Line)
+1 551 285 1373 US (New Jersey)
+1 669 216 1590 US (San Jose)
+1 415 449 4000 US (US Spanish Line)
833 568 8864 US Toll-free
Meeting ID: 161 588 8669
International numbers
Join from an H.323/SIP room system
H.323: 161.199.138.10 (US West)
161.199.136.10 (US East)
Meeting ID: 161 588 8669
Passcode: 561441

SIP: 1615888669@sip.zoomgov.com
Passcode: 561441

One tap mobile: US: +16692545252,,1601987443# or +16468287666,,1601987443#

Meeting URL: https://jlab-org.zoomgov.com/j/1615888669?pwd=MnhGVUhpeEd3NVpnTGxoZHJManNBdz09&from=addon
Meeting ID: 161 588 8669
Passcode: 561441

AIOP - Polarized Photon Source

Agenda:

  1. Previous Meeting
  2. Announcements
  3. Project Progress
  4. PIER Activities
  5. AOT


Minutes

  • Reviewed previous minutes:
    • Contention in nudge counts between patrick and jiawei’s algorithms
    • Slides from last time have been uploaded
  • Project Progress
    • Patrick shared slides
      • Jiawei had 1123 nudge events vs 1241 for Patrick (~10% down from much greater)
      • Looking over all spring 2020 (double check…may be 2018 fall)
        • Some discrepancies solved
          • Beam down times with nudge events
          • @is_dirc_production and @status_approved tags not used before
          • 10 second window since goni changes
        • Still 10% difference
          • Going to look event by event
        • David: Are the remaining events overlapping?
          • Patrick: a couple hundred unique to each set. Maybe the timing (tagging) is slightly off
        • Thomas: any other variables to tag events
          • Patrick: yeah maybe duration, or end times. Etc.
        • Slide 2 on Livingston c
          • Tried to confirm c=k/gEo(...) using Hovanes script
          • The script doesn’t seem to map pitch and yaw to delta c
          • Hovanes needs to look at formula to agree. Looking at the formula x axis of slide 3. Patrick will provide this talk and the derivation for confirmation
          • 45/125 vs 0/90 may be problematic
          • Naomi: pass the numbers from a small subset of events to hovanes?
            • Agreed to hand over the numbers
    • Jiawei showed slides
      • Some nudges were alignment change oopse
      • Measured drift amounts (from start and from nominal)
      • Spring 2020 looks best
      • Hovanes notes the number used as “nominal” really used as fit starting point.
      • Naomi: wasn’t fall 2018 had a flat top and needed a new spot?
      • Hovanes: bottom line: don’t use CBREM:REQ_EDGE
      • Naomi: may be able to get the required from Alex wiki
    • How is the beam spot determined
    • Patrick asked Hovanes about the use of the script.
      • Hovanes: yes it is used. Buried in scripts and scripts
      • What is the process
      • Hovanes: shift worker looks and clicks a button and it shifts the goni. The button click runs the script to know how to adjust the goni
    • PIER activities
      • Meeting with Lisa biweekly
      • ~30 kids on chrome books
      • Need to reserve F113
      • Thomas working on draft agenda


Action Items

Retrieved from "https://wiki.jlab.org/epsciwiki/index.php?title=AIOP_May_6,_2024&oldid=5016"