Difference between revisions of "PREX/CREX Jan 22, 2019 10:00am"

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== Agenda ==
 
== Agenda ==
# Moller update: Eric
+
# Moller update: Eric [https://prex.jlab.org/cgi-bin/DocDB/private/ShowDocument?docid=299 docDB299]
#*  
+
#* EK: closest agreement so far.
# Integrating beam monitors: Ciprian
+
#* EK: Roman mentioned they may have swapped the paddles in the past. Survey of the paddles will be done next week
#*
+
#* EK: hopefully the survey will be able to resolve some of the differences between data and simulation.
 +
#* SP: are the field maps only from TOSCA? EK: they also did some work with OPERA. They compared with field measurements.
 +
#* PS: do the TOSCA maps have large multiples? EK: Jay still sees that and says that the LANL analysis from the past was not detailed enough.
 +
# Integrating beam monitors: Ciprian [https://prex.jlab.org/cgi-bin/DocDB/private/ShowDocument?docid=298 docDB298]
 +
#* PK: additional BPM in the Parity DAQ?  CG: will have to investigate this.
 +
#* CP: what is the latency for the cavity BPMs? the other receivers had a 10-20 ns delay. YT: will ask Musson and get the actually latency for the signal
 
# DAQ: Cameron - [https://ace.phys.virginia.edu:80/HAPPEX/3595 slides]
 
# DAQ: Cameron - [https://ace.phys.virginia.edu:80/HAPPEX/3595 slides]
#*
+
#* CC: Sync needs to be good enough so all data is within 1us
# GEMs and Linearity DAQs @ JLab: Devi
+
#* CC: Appendix C in Brian Moffit’s thesis provides the details.
#*  
+
#* slide 3: KK: is this different from PREX1? KP: the option 1 was done for both H2 and PREX1
# Tracking and optics: Chandan and Seamus
+
#* slide 4: CC: we should have a procedure to look at pedestals on a regular basis. KK: the slow variations are not relevant. KP: there will definitely pickup between channels (if you plug the helicity signal into the crate).
#*  
+
# GEMs and Linearity DAQs @ JLab: Devi -- [https://ace.phys.virginia.edu:80/HAPPEX/3596 slides]
 +
#* CG :deferred to next week
 +
# Tracking and optics: Chandan and Seamus [https://anl.box.com/shared/static/1f45z0kvavclnylgkij2lufg46aqbi0b.pdf Seamus]
 +
#* SR: we will make frames that will couple to the existing rollers so they can be similar to the current detectors.
 
# Schedule for next mtg: Ciprian [[Weekly Meeting Discussion Topics]]
 
# Schedule for next mtg: Ciprian [[Weekly Meeting Discussion Topics]]
 +
#* GEMs and Linearity DAQs @ JLab: Devi -- [https://ace.phys.virginia.edu:80/HAPPEX/3596 slides]
 
#* Analyzer: Paul
 
#* Analyzer: Paul
 
#* Analysis chain and data tracking: Sanghwa and Ciprian
 
#* Analysis chain and data tracking: Sanghwa and Ciprian
 
  
 
== Present ==
 
== Present ==
 
===In F345===
 
===In F345===
 +
Sanghwa P, Cameron C, Adam Z, Amali P, Dave G, Tao Y, Eric K, Robert R, Ye T, Wouter D, Victoria O, Ciprian G, Paul K, Caryn P,
  
 
===Online===
 
===Online===
 +
Kent P, Chandan G, Devi A, William H, Jinlong Z, Silviu D, Juliette M, Ryan R, Paul S, Dustin M, Siyu Jian, KK, Seamus R, Rich H,
  
 
===Cannot make it===
 
===Cannot make it===
KK,
 
  
 
[[Category:Meetings]]
 
[[Category:Meetings]]
 
[[Category:Prex Weekly Meeting]]
 
[[Category:Prex Weekly Meeting]]

Latest revision as of 12:30, 22 January 2019

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Agenda

  1. Moller update: Eric docDB299
    • EK: closest agreement so far.
    • EK: Roman mentioned they may have swapped the paddles in the past. Survey of the paddles will be done next week
    • EK: hopefully the survey will be able to resolve some of the differences between data and simulation.
    • SP: are the field maps only from TOSCA? EK: they also did some work with OPERA. They compared with field measurements.
    • PS: do the TOSCA maps have large multiples? EK: Jay still sees that and says that the LANL analysis from the past was not detailed enough.
  2. Integrating beam monitors: Ciprian docDB298
    • PK: additional BPM in the Parity DAQ? CG: will have to investigate this.
    • CP: what is the latency for the cavity BPMs? the other receivers had a 10-20 ns delay. YT: will ask Musson and get the actually latency for the signal
  3. DAQ: Cameron - slides
    • CC: Sync needs to be good enough so all data is within 1us
    • CC: Appendix C in Brian Moffit’s thesis provides the details.
    • slide 3: KK: is this different from PREX1? KP: the option 1 was done for both H2 and PREX1
    • slide 4: CC: we should have a procedure to look at pedestals on a regular basis. KK: the slow variations are not relevant. KP: there will definitely pickup between channels (if you plug the helicity signal into the crate).
  4. GEMs and Linearity DAQs @ JLab: Devi -- slides
    • CG :deferred to next week
  5. Tracking and optics: Chandan and Seamus Seamus
    • SR: we will make frames that will couple to the existing rollers so they can be similar to the current detectors.
  6. Schedule for next mtg: Ciprian Weekly Meeting Discussion Topics
    • GEMs and Linearity DAQs @ JLab: Devi -- slides
    • Analyzer: Paul
    • Analysis chain and data tracking: Sanghwa and Ciprian

Present

In F345

Sanghwa P, Cameron C, Adam Z, Amali P, Dave G, Tao Y, Eric K, Robert R, Ye T, Wouter D, Victoria O, Ciprian G, Paul K, Caryn P,

Online

Kent P, Chandan G, Devi A, William H, Jinlong Z, Silviu D, Juliette M, Ryan R, Paul S, Dustin M, Siyu Jian, KK, Seamus R, Rich H,

Cannot make it