Difference between revisions of "November 14, 2018 - Group Meeting"
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− | Fall 2018 | + | ===Fall 2018=== |
+ | : '''CEBAF Status''' | ||
+ | ::Program through Christamas | ||
+ | :::* Tue 11/20 - Hall A turns off for rest of the year | ||
+ | :::* Mon 11/26 - Linac and Pass changes (ABCD = Off/4/2/5.5) => Wien change for B, D moves to the A-list to limit bleedthrough | ||
+ | :::* Mon 12/10 - Linac and Pass changes (ABCD = Off/4/3/5.5) => Wien change for B | ||
+ | :::* Thu 12/20 - Machine off at 8am for Holiday break | ||
+ | :: Beam Studies and OnCall Activities | ||
+ | :::'''Gun2 QE''' [https://logbooks.jlab.org/entry/3626026 Gun2 lifetime and recent QE scan] and [https://logbooks.jlab.org/entry/3626670 Spot Move 11/15/18] | ||
+ | :::'''High Polarization in Hall B''' [https://logbooks.jlab.org/entry/3619778 Hall B Moller and Beam Energy] and [https://logbooks.jlab.org/entry/3610318 Mott measurements] | ||
+ | :::'''SF6 Relief Valve''' [https://logbooks.jlab.org/entry/3621341 SF6 relief valve leaky] and [https://logbooks.jlab.org/entry/3626304 On-Call Repair] | ||
+ | :::'''Easy Button Not So Easy''' [https://logbooks.jlab.org/entry/3621315 Hall A Laser investigation] and [http://opsweb.acc.jlab.org/CSUEApps/atlis/task/18591 SCAM modification] | ||
+ | :::'''Vertical Wien Filter Current Instability''' [https://logbooks.jlab.org/entry/3621950 Vertical Wien current instability addressed, but not fixed] and [https://logbooks.jlab.org/entry/3626755 Vertical Wien current instability resolved] | ||
+ | :::'''PQB Studies''' [https://logbooks.jlab.org/entry/3624989 Low QE => Large Q Asym] and [https://logbooks.jlab.org/entry/3625504 Helicity board signal vs. setpoint] | ||
+ | :'''LERF Status''' | ||
+ | ::[https://logbooks.jlab.org/entry/3615342 LERF Driver Laser Enclosure Certified] and [http://devweb.acc.jlab.org/CSUEApps/atlis/task/18586 LERF PSS Certificiation] | ||
+ | : '''GTS Status''' | ||
+ | : '''UITF Status''' | ||
− | === | + | === Forecast 2019 === |
− | :[https:// | + | :'''JAN 2 - JAN 22 (3 week SAD/PSS period)''' [https://accweb.acc.jlab.org/calendar/view-outlook?calendar=1&year=2019&week=1 SAD] |
− | :[ | + | ::''MUST'' |
− | :[ | + | :::*[http://devweb.acc.jlab.org/CSUEApps/atlis/task/18580 Heat/Activate Gun2 Photocathode SLSP] |
− | :[ | + | :::*John ordered small tank to top off SF6 |
− | : | + | :::*[http://devweb.acc.jlab.org/CSUEApps/atlis/task/18582 Install RTP Pockels cell] |
− | : | + | :::*[http://opsweb.acc.jlab.org/CSUEApps/atlis/task/18562 Fiducialize IHA2D00 for Bubble] |
− | :[https://logbooks.jlab.org/entry/ | + | ::''SHOULD'' |
+ | :::*Accelerator electricians to install two new racks + cable tray in ISB for 200KV Wien HVPS and address iocin6 load | ||
+ | :::*Implement 1kV anode safe floating bias supply inline with anode-picoammeter | ||
+ | ::''LIKE'' | ||
+ | :::*Restore/HCO helicity magnets? | ||
+ | :::*[https://logbooks.jlab.org/entry/3625601 Install DBR?] | ||
− | + | : '''FEB 1 - Arne's target date for LERF to be ready''' | |
− | : | + | :: Good photocathode |
− | : | + | :: Gun reaches HV |
+ | :: Laser/DLCP ready to go | ||
+ | :: Let's work with Chris and Shaun to develop a plan to restore beam through QCM (will be 2K) | ||
+ | :: No firm Radioisotope run dates yet | ||
− | + | : '''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 |
− | |||
− | |||
− | : | ||
− | |||
− | |||
− | ===Beyond=== | + | : '''APR 8 - JUN 2 (8 week SAD period)''' |
+ | :: PQB Studies? | ||
+ | :: Early opportunity Gun2 electrode 200KV | ||
+ | |||
+ | : '''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)''' | ||
+ | :: Gun2 electrode 200KV | ||
+ | :: 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 | ||
+ | |||
+ | ===And Beyond=== |
Latest revision as of 09:55, 16 November 2018
Fall 2018
- CEBAF Status
- Program through Christamas
- Tue 11/20 - Hall A turns off for rest of the year
- Mon 11/26 - Linac and Pass changes (ABCD = Off/4/2/5.5) => Wien change for B, D moves to the A-list to limit bleedthrough
- Mon 12/10 - Linac and Pass changes (ABCD = Off/4/3/5.5) => Wien change for B
- Thu 12/20 - Machine off at 8am for Holiday break
- Beam Studies and OnCall Activities
- Gun2 QE Gun2 lifetime and recent QE scan and Spot Move 11/15/18
- High Polarization in Hall B Hall B Moller and Beam Energy and Mott measurements
- SF6 Relief Valve SF6 relief valve leaky and On-Call Repair
- Easy Button Not So Easy Hall A Laser investigation and SCAM modification
- Vertical Wien Filter Current Instability Vertical Wien current instability addressed, but not fixed and Vertical Wien current instability resolved
- PQB Studies Low QE => Large Q Asym and Helicity board signal vs. setpoint
- Program through Christamas
- LERF Status
- GTS Status
- UITF Status
Forecast 2019
- JAN 2 - JAN 22 (3 week SAD/PSS period) SAD
- MUST
- Heat/Activate Gun2 Photocathode SLSP
- John ordered small tank to top off SF6
- Install RTP Pockels cell
- Fiducialize IHA2D00 for Bubble
- SHOULD
- Accelerator electricians to install two new racks + cable tray in ISB for 200KV Wien HVPS and address iocin6 load
- Implement 1kV anode safe floating bias supply inline with anode-picoammeter
- LIKE
- Restore/HCO helicity magnets?
- Install DBR?
- MUST
- FEB 1 - Arne's target date for LERF to be ready
- Good photocathode
- Gun reaches HV
- Laser/DLCP ready to go
- Let's work with Chris and Shaun to develop a plan to restore beam through QCM (will be 2K)
- No firm Radioisotope run dates yet
- 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)
- PQB Studies?
- Early opportunity Gun2 electrode 200KV
- 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)
- Gun2 electrode 200KV
- 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