Difference between revisions of "PQB Meeting December 6, 2018"
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'''Agenda:''' | '''Agenda:''' | ||
| − | 1- RTP cell installation in 2019 Winter SAD | + | 1- RTP cell installation in 2019 Winter SAD: |
* optics spares (crystals/mounts) | * optics spares (crystals/mounts) | ||
| + | :The optical mounts have been ordered | ||
| + | :PR submitted for the RTP crysals, waiting on buyer | ||
* HV system (2 units w/o pots) | * HV system (2 units w/o pots) | ||
* cable from DAC to HV system | * cable from DAC to HV system | ||
| Line 18: | Line 20: | ||
* schedule (RTP install, beam checkout, back out) | * schedule (RTP install, beam checkout, back out) | ||
* RTP monitoring plan during Spring run | * RTP monitoring plan during Spring run | ||
| − | |||
| − | |||
| − | 2- New RTP EDM screen: | + | 2- 2019 CEBAF schedule: |
| + | :'''JAN 2 - JAN 22 (3 week SAD/PSS period)''' [https://accweb.acc.jlab.org/calendar/view-outlook?calendar=1&year=2019&week=1 SAD] | ||
| + | :::*[http://devweb.acc.jlab.org/CSUEApps/atlis/task/18580 Heat/Activate Gun2 Photocathode SLSP] | ||
| + | :::*[http://devweb.acc.jlab.org/CSUEApps/atlis/task/18582 Install RTP Pockels cell] | ||
| + | :::*Restore/HCO helicity magnets | ||
| + | |||
| + | : '''JAN 30 - APR 7 (10 week run period)''' | ||
| + | :: Similar to this run with A=30, B=polarized, C=50-70uA, D | ||
| + | :: Hall A run short until MAR 7, then a 3 day PQB tests a 1-pass 70uA | ||
| + | |||
| + | : '''APR 8 - JUN 2 (8 week SAD period)''' | ||
| + | :: Bubble engineering run: 1 wk install + 2 wk run + 1 wk remove | ||
| + | :: PQB Studies | ||
| + | |||
| + | : '''JUN 10 - AUG 11 (9 week run period)''' | ||
| + | :: Hall A PREX polarized 70uA 1 pass @ 499 MHz | ||
| + | :: Hall B unpolarized 100nA 5 pass @ 499 MHz | ||
| + | :: Hall C unpolarized 50-90 uA 3-5 pass @ 499 MHz for 3 weeks | ||
| + | |||
| + | : '''AUG 12 - OCT 25 (11 week SAD period)''' | ||
| + | :: Opportunity to replace Gun2 electrode 200KV | ||
| + | :: Opportunity to power Wiens from new PS and HVPS | ||
| + | |||
| + | :'''NOV 1 - DEC 19 (7 week run period)''' | ||
| + | :: Hall A CREX polarized 150uA 1 pass @ 499 MHz | ||
| + | :: Hall B polarized 5 pass @ 250 MHz | ||
| + | :: Hall C polarized 30uA 5 pass @ 250 MHz | ||
| + | :: Hall D 5 pass @ 250 MHz | ||
| + | |||
| + | |||
| + | 3- New RTP EDM screen: | ||
# HV controls | # HV controls | ||
# ON/OFF | # ON/OFF | ||
| + | |||
| + | The DAC VMIC 1068 resides in the VME crate for iocin3. The first 2 channels are used for the High Voltage software. | ||
| + | Here are the EPICS PV names for 8 unused DAC channels on the VMIC_1068: | ||
| + | IGL0I00C1068_DAC05 | ||
| + | IGL0I00C1068_DAC06 | ||
| + | IGL0I00C1068_DAC07 | ||
| + | IGL0I00C1068_DAC08 | ||
| + | IGL0I00C1068_DAC09 | ||
| + | IGL0I00C1068_DAC10 | ||
| + | IGL0I00C1068_DAC11 | ||
| + | IGL0I00C1068_DAC12 | ||
| + | The card is strapped for 0-10 Volts and the software for these 8 DAC channels are set so a value of 0 = 0 Volts, 5 = 5 Volts, 10 = 10 Volts, etc ... . | ||
| + | |||
| + | |||
| + | 4- Beam emittance and spot-size helicity correlated asymmetry: | ||
| + | * Kent Paschke, "Emittance Growth and Spot Size": [[media:Paschke_SpotSizeEmittance_Dec2018.pdf]] | ||
| + | * Jay Benesch, "Emittance Measurements since Dec 2017": [[media:beam_properties_FY18.ods]] | ||
Latest revision as of 11:04, 7 December 2018
We will meet in TEDF 2559 Thursday December 6 at 4:00 pm EST.
For those calling in we'll use the Blue Jeans [1] audio conference system.
Phone number: 1-888-240-2560 Meeting ID: 3528502673# Meeting URL: http://bluejeans.com/3528502673
Agenda:
1- RTP cell installation in 2019 Winter SAD:
- optics spares (crystals/mounts)
- The optical mounts have been ordered
- PR submitted for the RTP crysals, waiting on buyer
- HV system (2 units w/o pots)
- cable from DAC to HV system
- screen and equations app for DAC
- UVa parts ready (cell + HVPS + dragon boards)
- laser box top hat
- schedule (RTP install, beam checkout, back out)
- RTP monitoring plan during Spring run
2- 2019 CEBAF schedule:
- JAN 2 - JAN 22 (3 week SAD/PSS period) SAD
- Heat/Activate Gun2 Photocathode SLSP
- Install RTP Pockels cell
- Restore/HCO helicity magnets
- JAN 30 - APR 7 (10 week run period)
- Similar to this run with A=30, B=polarized, C=50-70uA, D
- Hall A run short until MAR 7, then a 3 day PQB tests a 1-pass 70uA
- APR 8 - JUN 2 (8 week SAD period)
- Bubble engineering run: 1 wk install + 2 wk run + 1 wk remove
- PQB Studies
- JUN 10 - AUG 11 (9 week run period)
- Hall A PREX polarized 70uA 1 pass @ 499 MHz
- Hall B unpolarized 100nA 5 pass @ 499 MHz
- Hall C unpolarized 50-90 uA 3-5 pass @ 499 MHz for 3 weeks
- AUG 12 - OCT 25 (11 week SAD period)
- Opportunity to replace Gun2 electrode 200KV
- Opportunity to power Wiens from new PS and HVPS
- NOV 1 - DEC 19 (7 week run period)
- Hall A CREX polarized 150uA 1 pass @ 499 MHz
- Hall B polarized 5 pass @ 250 MHz
- Hall C polarized 30uA 5 pass @ 250 MHz
- Hall D 5 pass @ 250 MHz
3- New RTP EDM screen:
- HV controls
- ON/OFF
The DAC VMIC 1068 resides in the VME crate for iocin3. The first 2 channels are used for the High Voltage software. Here are the EPICS PV names for 8 unused DAC channels on the VMIC_1068: IGL0I00C1068_DAC05 IGL0I00C1068_DAC06 IGL0I00C1068_DAC07 IGL0I00C1068_DAC08 IGL0I00C1068_DAC09 IGL0I00C1068_DAC10 IGL0I00C1068_DAC11 IGL0I00C1068_DAC12 The card is strapped for 0-10 Volts and the software for these 8 DAC channels are set so a value of 0 = 0 Volts, 5 = 5 Volts, 10 = 10 Volts, etc ... .
4- Beam emittance and spot-size helicity correlated asymmetry:
- Kent Paschke, "Emittance Growth and Spot Size": media:Paschke_SpotSizeEmittance_Dec2018.pdf
- Jay Benesch, "Emittance Measurements since Dec 2017": media:beam_properties_FY18.ods