Difference between revisions of "Jun 19, 2012 Calorimetry"
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##* Stage 2: 214 PDE measured, need 66 more to complete testing in this stage | ##* Stage 2: 214 PDE measured, need 66 more to complete testing in this stage | ||
##* Final shipments from Hamamatsu are scheduled to be complete mid July. | ##* Final shipments from Hamamatsu are scheduled to be complete mid July. | ||
− | ##* Will: Should consider number of spares needed. | + | ##* Will: Should consider number of spares needed in case we wish to add onto the current USM order. |
+ | ##* Serguei: If additional 32 units ordered, they could be placed into the Stage 3 test setup and run continuously to check stability | ||
# TDR update | # TDR update | ||
## [[Private:Instructions for the TDR | Instructions for the TDR]] (You must be logged into the wiki to access this page). | ## [[Private:Instructions for the TDR | Instructions for the TDR]] (You must be logged into the wiki to access this page). |
Latest revision as of 14:26, 19 June 2012
Teleconference Time: 11:00 a.m. EST'
- ESNET (Number is 8542553) and EVO session (GlueX Calorimetry meeting room)
- Phone connection only upon request.
- +1-866-740-1260 : US+Canada
- +1-303-248-0285 : International
- then enter participant code: 3421244# (remember the "#").
- or www.readytalk.com (and code without the #)
Contents
Participant Direct Lines
- JLab Phone: in CC F326 is 757-269-6337 (usual room)
- JLab Phone in CC L207 is 757-269-7084
- Phone in the Regina Videoconference Suite is 306-585-4204
- Athens Phone: in Christina's office is 011-30-210-727-6947
Items for followup from previous meeting(s)
- Cables
-
Establish cabling for Bcal and Fcal into racksLists have been sent to Fernando. Still need to double check the lists.
-
- Mechanical
- Check features in Fcal support structure for cable passages and plexiglas support, and space between window frames on glass and plexiglass (Elton, Tim)
- Monitoring
-
Check status of monitoring control boards at JLab (David).
-
Tentative Agenda
- Announcements
- Review of Action Items
- Monitoring
- LED system on Mini BCAL
- JLab bench testing (Tara/David?)
- LED system on Mini BCAL
- FCAL
- Construction Status
- 2011 Hall B FCAL Beam Test (John)
- BCAL
- Cosmics at Regina
- Cosmics run plan (SiPMs) & LEDs at JLab
- Update on BCAL Beam Tests 2012
- SiPM Bias and Board Amplification Discussion
- USM update
- SiPM Update (Javiera)
- TDR update
- Instructions for the TDR (You must be logged into the wiki to access this page).
- We need to start revising Chapter 4 Detector, Section 4.3 Calorimetry.
- Calibration of Calorimeters
- Simulations/Reconstruction
- Any other business
Minutes
Attendees: Elton, David, Beni, Tara, Tim, Eugene (JLab); Zisis, Andrei (UofR); Javiera, Will, Hayk, Serguei (USM); Matt (IU); Christina, George, Pavlos, Stratos (Athens)
- Announcements
- Review of Action Items
- Monitoring
- Urgent orders are out
- LED boards have been ordered, should be received by end of the month
- Flex cables requested but not confirmed
- All effort is being made to speed up the production. Hope to have boards by the end of July.
- LED system on Mini BCAL
- JLab bench testing (Tara/David?)
- Screen shots of pulses. Far/near ratio~2.25 but large variation.
- Andrei: It appears that the variation is due to the size of the near signal
- Christina: All LEDS in production will be tested and can be selected for best match in each string of 10.
- Will: Two-component optical RTV was used previously and without primer adhesion is moderated and would allow replacement of LEDs
- Urgent orders are out
- FCAL
- Frame construction Status
- Machining of steel support structure is almost complete
- Al parts are almost complete. A workaround is being developed for a small machining mistake.
- Note that 3 1.5" holes in each corner are included for monitoring communications. Elton and Tim to check.
- George: Requested that Matt send the drawings to verify sizes. Matt has already done this.
- Assembly should start next week.
- Cockcroft-Walton Bases
- Production has sped up and currently matches the rate to put them together.
- At this rate, should be complete by mid-July.
- An extension to the contract has been requested and is in progress. Elton should check status.
- Cables
- Secured cable label printer and setting it up
- Will label the 1600 cables at IU before shipping.
- Frame construction Status
- BCAL
- Cosmics at Regina
- Preparing to use 2010 prototype to check normalization procedures using cosmics
- 2 light guides on top for SiPMs and one on bottom for calibrated pmt
- Five paris of trigger counters to accumulate statistics quicker.
- Almost ready to start studies
- Update on BCAL Beam Tests 2012
- Irina ha simulated 5deg/2 GeV data. Files are available but not yet analyzed
- Preliminary look indicates significant leakage as we see in the data. Resolution will be degraded but MC and data comparisons should be useful.
- SiPM Bias and Board Amplification Discussion
- Cosmics at Regina
- USM update
- SiPM Update (Javiera)
- Stage 3: Power supply from CAEN arrived on June 8 and testing resumed on June 12
- Stage 2: 214 PDE measured, need 66 more to complete testing in this stage
- Final shipments from Hamamatsu are scheduled to be complete mid July.
- Will: Should consider number of spares needed in case we wish to add onto the current USM order.
- Serguei: If additional 32 units ordered, they could be placed into the Stage 3 test setup and run continuously to check stability
- SiPM Update (Javiera)
- TDR update
- Instructions for the TDR (You must be logged into the wiki to access this page).
- We need to start revising Chapter 4 Detector, Section 4.3 Calorimetry.
- Calibration of Calorimeters
- Simulations/Reconstruction
- Any other business