Difference between revisions of "July 9, 2009 Calorimetry"
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=Items for followup from previous meeting(s)= | =Items for followup from previous meeting(s)= | ||
# Procedure to avoid vaseline in Bcal fabrication needs to be approved. | # Procedure to avoid vaseline in Bcal fabrication needs to be approved. | ||
− | # Resolution studies | + | # Resolve shipping procedures for Baby Cal. |
− | #* Study impact of inactive material at the end of BCAL on acceptance. | + | # <strike> Resolution studies |
+ | #* Study impact of inactive material at the end of BCAL on acceptance. (Mihajlo and Sasha) </strike> | ||
# Documentation on fiber first-article | # Documentation on fiber first-article | ||
# Review calibration procedures | # Review calibration procedures | ||
Line 17: | Line 18: | ||
#* light guides (USM) | #* light guides (USM) | ||
#* temperature stabilization (Tim and Fernando) | #* temperature stabilization (Tim and Fernando) | ||
− | #* summing circuits for SiPMs (Fernando) | + | #* <strike> summing circuits for SiPMs (Fernando) </strike> |
# <strike> Impact of gain variations on resolution (especially for summed SiPMs) (Elton) </strike> | # <strike> Impact of gain variations on resolution (especially for summed SiPMs) (Elton) </strike> | ||
Line 29: | Line 30: | ||
# Review of Action Items | # Review of Action Items | ||
# BCAL Fabrication (Zisis) | # BCAL Fabrication (Zisis) | ||
− | #* Contract status | + | #* Contract status, etc: see report at bottom of page |
+ | # BCAL Fiber QA: [[Media:FiberQA-20090709v2.pdf]] | ||
# FCAL Update | # FCAL Update | ||
#* MOU, sow (Elton, Matt) | #* MOU, sow (Elton, Matt) | ||
# Simulations | # Simulations | ||
# BCAL Readout | # BCAL Readout | ||
− | ## Update from USM ( | + | ## [http://www.jlab.org/Hall-D/software/wiki/images/4/4e/20090709-CNC.ppt Update] from USM (Alam) |
− | # Bcal Readout Review (July 21) | + | # [http://www.jlab.org/Hall-D/guest_secure Bcal Readout Review] (July 21) |
## Reviewers: Stefano Miscetti (INFN) via video, Stepan Stepanyan (Hall B) and Howard Fenker (Hall C) | ## Reviewers: Stefano Miscetti (INFN) via video, Stepan Stepanyan (Hall B) and Howard Fenker (Hall C) | ||
## Tentative schedule: July 10: pre-brief material, July 16: slides for presentations. | ## Tentative schedule: July 10: pre-brief material, July 16: slides for presentations. | ||
− | ## | + | ## Discussion of which option to put forward |
# Other business | # Other business | ||
Line 44: | Line 46: | ||
Attendees: | Attendees: | ||
+ | |||
+ | =BCAL Construction Report= | ||
+ | |||
+ | (Provided by ZP) | ||
+ | |||
+ | # Full BCAL Construction Contract Proposal revised by Regina and submitted to JLab on July 6. | ||
+ | # Construction preparations: | ||
+ | #* Main construction room installations complete (pressure lines, electrical). Room will be cleaned and returned to operation by Monday. | ||
+ | #* Press manifold adjusted to come done more gently. | ||
+ | #* Press frame rams retrofitted with ball-and-socket attachments at end ('lunar lander' feet) for more even delivery of pressure. A few more small samples will be constructed before finalizing swager and press settings. | ||
+ | #* A-frame hoist constructed; delivery expected by Monday. | ||
+ | #* Awaiting first article lead (Tim can add to this). Will swage remaining Beaufait lead early next week and then we will have 3/4 of lead ready for Construction Prorotype. | ||
+ | #* Swager room is near completion. Two coats of paint and one overhead light to be installed. Will be done by Friday. | ||
+ | #* Epoxy-blocker compounds (KY jelly, Fresh or Cooked pasta) used in small samples and delamination tests are in progress. Hope to report results by next Calorimetry meeting. | ||
+ | #* fiber sorting table will be completed early next week (just needs partial dismantling and Cu sheet installation. | ||
+ | #* Ross Machine Shop is finishing a major overhaul of their big machine; we're first in queue for Construction Prototype Al plates (DWG drawing files obtained from Tim) | ||
+ | #* All other materials in place for Construction Prototype. | ||
+ | # Fibers (see above report) | ||
+ | #* Fiber QA lab complete and in full operation, with attenuation length, no of pe, and diameter measurements going on in parallel. | ||
+ | #* Fiber handling methods improved since first article tests, have had no damaged fibers since (4 damaged first article ones) | ||
+ | #* Second shipment of 33,000 fibers received July 2 | ||
+ | #* Measurements for 20-25 first article fibers were repeated with final methods, results complete and consistent, in report already, draft expected soon | ||
+ | #* First shipment measurements finished: 180 fibers on atten length, 60 on no of pe, excellent quality fibers. | ||
+ | #* Second shipment measurements underway, 50 fibers tested as of today on p.e., 70 on attenuation length, results of same quality as shipment 1. | ||
+ | # Crew | ||
+ | #* Dan Kolybaba spending a lot of time on our project, even in his current position; Keith Wolbaum assisting (Fac of Science people) | ||
+ | #* 5th physics ugrad added to crew on July 2. | ||
+ | #* 4 ugrad Engineers on 12-month internships have signed on, starting Sept 1. One more grad student Engineer/CoOp for 8 month term. 6th position staffed by two physics students (working on summer crew) in part time roles. We're ok for next 12 months. <font color=red>BIG RELIEF!</font> |
Latest revision as of 11:26, 9 July 2009
Teleconference Time: 11:00 a.m. EST
- ESNET and EVO session
- Phone:
- +1-800-377-8846 : US
- +1-888-276-7715 : Canada
- +1-302-709-8424 : International
- then enter participant code: 77438230# (remember the "#"). Note: code changed 7/2/09
Contents
Items for followup from previous meeting(s)
- Procedure to avoid vaseline in Bcal fabrication needs to be approved.
- Resolve shipping procedures for Baby Cal.
-
Resolution studies- Study impact of inactive material at the end of BCAL on acceptance. (Mihajlo and Sasha)
- Documentation on fiber first-article
- Review calibration procedures
- Update cost estimates
- light guides (USM)
- temperature stabilization (Tim and Fernando)
-
summing circuits for SiPMs (Fernando)
-
Impact of gain variations on resolution (especially for summed SiPMs) (Elton)
Documents to Review
Tentative Agenda
- Announcements
- Review of Action Items
- BCAL Fabrication (Zisis)
- Contract status, etc: see report at bottom of page
- BCAL Fiber QA: Media:FiberQA-20090709v2.pdf
- FCAL Update
- MOU, sow (Elton, Matt)
- Simulations
- BCAL Readout
- Update from USM (Alam)
- Bcal Readout Review (July 21)
- Reviewers: Stefano Miscetti (INFN) via video, Stepan Stepanyan (Hall B) and Howard Fenker (Hall C)
- Tentative schedule: July 10: pre-brief material, July 16: slides for presentations.
- Discussion of which option to put forward
- Other business
Minutes
Attendees:
BCAL Construction Report
(Provided by ZP)
- Full BCAL Construction Contract Proposal revised by Regina and submitted to JLab on July 6.
- Construction preparations:
- Main construction room installations complete (pressure lines, electrical). Room will be cleaned and returned to operation by Monday.
- Press manifold adjusted to come done more gently.
- Press frame rams retrofitted with ball-and-socket attachments at end ('lunar lander' feet) for more even delivery of pressure. A few more small samples will be constructed before finalizing swager and press settings.
- A-frame hoist constructed; delivery expected by Monday.
- Awaiting first article lead (Tim can add to this). Will swage remaining Beaufait lead early next week and then we will have 3/4 of lead ready for Construction Prorotype.
- Swager room is near completion. Two coats of paint and one overhead light to be installed. Will be done by Friday.
- Epoxy-blocker compounds (KY jelly, Fresh or Cooked pasta) used in small samples and delamination tests are in progress. Hope to report results by next Calorimetry meeting.
- fiber sorting table will be completed early next week (just needs partial dismantling and Cu sheet installation.
- Ross Machine Shop is finishing a major overhaul of their big machine; we're first in queue for Construction Prototype Al plates (DWG drawing files obtained from Tim)
- All other materials in place for Construction Prototype.
- Fibers (see above report)
- Fiber QA lab complete and in full operation, with attenuation length, no of pe, and diameter measurements going on in parallel.
- Fiber handling methods improved since first article tests, have had no damaged fibers since (4 damaged first article ones)
- Second shipment of 33,000 fibers received July 2
- Measurements for 20-25 first article fibers were repeated with final methods, results complete and consistent, in report already, draft expected soon
- First shipment measurements finished: 180 fibers on atten length, 60 on no of pe, excellent quality fibers.
- Second shipment measurements underway, 50 fibers tested as of today on p.e., 70 on attenuation length, results of same quality as shipment 1.
- Crew
- Dan Kolybaba spending a lot of time on our project, even in his current position; Keith Wolbaum assisting (Fac of Science people)
- 5th physics ugrad added to crew on July 2.
- 4 ugrad Engineers on 12-month internships have signed on, starting Sept 1. One more grad student Engineer/CoOp for 8 month term. 6th position staffed by two physics students (working on summer crew) in part time roles. We're ok for next 12 months. BIG RELIEF!