Difference between revisions of "Feb 21, 2023 - CIS Group meeting"
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== Agenda == | == Agenda == | ||
| − | * Joe (5) JLAAC | + | * Joe (5) |
| − | * Carlos/all (25) Gun and SAD jobs [[Media:Gun swap planning 1 week before and 1 week after SAD start.pptx]] | + | ** JLAAC dry runs next week, maybe 3/3 [[media:JLab_AAC_Agenda_Mar2023.pdf]] |
| + | ** LDRD will be announced soon, will prioritize Jlab upgrades (22 GeV/e+) | ||
| + | ** Nate proposing significant BPM upgrade, if you want to be at the table (Riad?, Max?) | ||
| + | ** Response to ARDAP LOI due today... | ||
| + | * Carlos/all (25) Gun and SAD jobs | ||
| + | ** Gun install schedule update [[Media:Gun swap planning ver Apr 4 2023.pptx]] | ||
| + | **[[Media:Gun swap planning 1 week before and 1 week after SAD start.pptx]] | ||
| + | ** (Max) 200 kV gun optics and 2I steering - https://tasklists.jlab.org/bslist/tasks/108544 | ||
| + | ** (Max) 200 keV Wien filter optics - https://tasklists.jlab.org/bslist/tasks/108547 | ||
| + | ** (Max) Test IHA0I02 after maintenance - https://tasklists.jlab.org/bslist/tasks/108546 | ||
* All (30) Your research projects, deadlines, papers, etc. | * All (30) Your research projects, deadlines, papers, etc. | ||
| + | ** (Max) Very different focal lengths of the gun field at CEBAF now vs. R30-3 | ||
| + | *** Cathode-grid scan, orbit measured with BPMs: fake single-particle scan for comparison with simulation | ||
| + | *** CEBAF gun, measured Jan 18: [[Media:Gunkick_cebaf_measured_trajectories.pdf|trajectories (extrapolated)]], [[Media:Gunkick_cebaf_measured_spread.pdf|aggregated to RMS]], [[Media:Gunkick_cebaf_measured_focus.pdf|focal length]] | ||
| + | *** CEBAF gun, GPT: [[Media:Gunkick_cebaf_gpt_trajectories.pdf|trajectories]], [[Media:Gunkick_cebaf_gpt_spread.pdf|aggregated to RMS]], [[Media:Gunkick_cebaf_gpt_focus.pdf|focal length]] | ||
| + | *** R30-3 gun, GPT: [[Media:Gunkick_r30_gpt_trajectories.pdf|trajectories]], [[Media:Gunkick_r30_gpt_spread.pdf|aggregated to RMS]], [[Media:Gunkick_r30_gpt_focus.pdf|focal length]] | ||
| + | *** cannot be extrapolated to high space charge | ||
| + | |||
=== Upcoming Meetings/Dates === | === Upcoming Meetings/Dates === | ||
Latest revision as of 10:42, 4 April 2023
Agenda
- Joe (5)
- JLAAC dry runs next week, maybe 3/3 media:JLab_AAC_Agenda_Mar2023.pdf
- LDRD will be announced soon, will prioritize Jlab upgrades (22 GeV/e+)
- Nate proposing significant BPM upgrade, if you want to be at the table (Riad?, Max?)
- Response to ARDAP LOI due today...
- Carlos/all (25) Gun and SAD jobs
- Gun install schedule update Media:Gun swap planning ver Apr 4 2023.pptx
- Media:Gun swap planning 1 week before and 1 week after SAD start.pptx
- (Max) 200 kV gun optics and 2I steering - https://tasklists.jlab.org/bslist/tasks/108544
- (Max) 200 keV Wien filter optics - https://tasklists.jlab.org/bslist/tasks/108547
- (Max) Test IHA0I02 after maintenance - https://tasklists.jlab.org/bslist/tasks/108546
- All (30) Your research projects, deadlines, papers, etc.
- (Max) Very different focal lengths of the gun field at CEBAF now vs. R30-3
- Cathode-grid scan, orbit measured with BPMs: fake single-particle scan for comparison with simulation
- CEBAF gun, measured Jan 18: trajectories (extrapolated), aggregated to RMS, focal length
- CEBAF gun, GPT: trajectories, aggregated to RMS, focal length
- R30-3 gun, GPT: trajectories, aggregated to RMS, focal length
- cannot be extrapolated to high space charge
- (Max) Very different focal lengths of the gun field at CEBAF now vs. R30-3
Upcoming Meetings/Dates
- February 22 (noon), G. Blume (20) Commissioning of the Compton transmission polarimeter (SRF Gun meeting)
- March 2 (11am), Y. Zhou, "Photoemission from biased metal surfaces”, Accelerator Division Seminar
- March 5-10, APS Meeting, Las Vegas (Riad, Matt) - https://march.aps.org/
- March 7-8, U. Va. Positron Working Group Meeting, Charlottesville - https://indico.jlab.org/event/680/
- Joe Grames (20+5) - Ce+BAF concept and the challenging polarized e- source
- Andriy Ushakov (15+5) - Positron target design and fatigue studies
- Sami Habet (15+5) - Concept of a polarized positron injector for CEBAF
- Dennis Turner (15+5) - Delivering e+ beams from LERF through Ce+BAF
- March 8-10, JLab Accelerator Advisory Committee Review
- Agenda & charge media:JLab_AAC_Agenda_Mar2023.pdf media:JLAAC_Charge_Mar_2023.docx
- March 15, GSRA Annual Review (1-4 pm)
- March 20, SAD Begins
- Shawn's recent calendar media:SAD_discussion_300123.pdf
- March 23-24, KEK visit Yoshinori+
- May 7-12, IPAC'23
- G. Blume et al., "A 5 MeV Compton transmission polarimeter designed for a SRF photogun". media:abstract-1233.pdf
- J. Grames et al., "Status of Ce+BAF: Polarized Positron Beam Capability at CEBAF 12 GeV" media:abstract-1313.pdf
- M. Rahman et al., "Quantum Efficiency and Lifetime Study for Negative Electron Affinity GaAs Nanopillar Array Photocathode" media:IPAC23 abstract_Aziz.pdf
- A. Ushakov et al., "Conceptual Design of a High-Power Target for Positron Production at CEBAF" media:abstract-1794.pdf
- S. Zhang, "What We Learned From Operating Electron Accelerators with Variable bunch Frequencies at JLab" media:IPAC23 abstract_Zhang.pdf
- May 15-19, LCWS2023 International Workshop on Linear Colliders (Andriy) - https://indico.slac.stanford.edu/event/7467/overview