Difference between revisions of "Photon Beam Commissioning Discussion July 7, 2014"
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# Announcements | # Announcements | ||
# Electron Commissioning (Todd/Mike) | # Electron Commissioning (Todd/Mike) | ||
+ | ## Mike detailing procedures for commissioning electron beam based on experience in April | ||
+ | ##* Much learned from beam delivery | ||
+ | ##* Confidence that delivery this fall will be clearner | ||
+ | ##* Expect: days to tune after spinning up to 5.5 pass; reasonable radiation without radiator | ||
+ | ##* Initial goal for emittance is 20 nm*rad x 2. [Design is 25 nm*rad in x and 10 nm*rad in y] | ||
+ | ##* Setup beam so that virtual focus of electron beam is at the collimator | ||
+ | ##* Need to characterize the ion chambers (minimizing scrapping and tails) | ||
+ | ##* nAmp bpms should be installed, but operation is not needed for commissioning | ||
+ | ##* Fast feedback is also not critical | ||
+ | ## Simulation of beam environment | ||
+ | ##* Richard will provide a geometry for Todd to run simulations | ||
+ | ##* Richard will include the mapped tagger magnetic field | ||
+ | ##* Todd will provide a magnetic field for the quad immediately upstream of the tagger magnet. | ||
+ | ##* (Eugene) Suggest to have the quad off during initial commissioning. | ||
+ | ## Radiators | ||
+ | ##* Production radiators are (10^-5, 3x10^-4, 10^-3) | ||
+ | ##* Propose the following set for commissioning: (3x10^-5, 10^-4, 3x10^-4) | ||
# Photon Commissioning Draft (Eugene) | # Photon Commissioning Draft (Eugene) | ||
+ | ## Discussion of [[draft plan submitted as homework to ERR]] | ||
# Goals for Aug 8 Review | # Goals for Aug 8 Review | ||
# Other business | # Other business |
Revision as of 09:15, 10 July 2014
Contents
Organization
- Time: 4 pm EST
- Connecting: detailed instructions are here
- H.323 ip address: 199.48.152.152
- web browser: https://bluejeans.com/536076821
- phone: 408-740-7256 or 888-240-2560
- Conference id: 536076821
References
Agenda
- Announcements
- Electron Commissioning (Todd/Mike)
- Photon Commissioning Draft (Eugene)
- Goals for Aug 8 Review
- Other business
Minutes
- Attending: Elton, Eugene, Alexandre, Sasha (Hall D); Mike McCaughan, Todd Satogata (Accelerator); Richard (UConn); Curtis (CMU).
- Announcements
- Electron Commissioning (Todd/Mike)
- Mike detailing procedures for commissioning electron beam based on experience in April
- Much learned from beam delivery
- Confidence that delivery this fall will be clearner
- Expect: days to tune after spinning up to 5.5 pass; reasonable radiation without radiator
- Initial goal for emittance is 20 nm*rad x 2. [Design is 25 nm*rad in x and 10 nm*rad in y]
- Setup beam so that virtual focus of electron beam is at the collimator
- Need to characterize the ion chambers (minimizing scrapping and tails)
- nAmp bpms should be installed, but operation is not needed for commissioning
- Fast feedback is also not critical
- Simulation of beam environment
- Richard will provide a geometry for Todd to run simulations
- Richard will include the mapped tagger magnetic field
- Todd will provide a magnetic field for the quad immediately upstream of the tagger magnet.
- (Eugene) Suggest to have the quad off during initial commissioning.
- Radiators
- Production radiators are (10^-5, 3x10^-4, 10^-3)
- Propose the following set for commissioning: (3x10^-5, 10^-4, 3x10^-4)
- Mike detailing procedures for commissioning electron beam based on experience in April
- Photon Commissioning Draft (Eugene)
- Discussion of draft plan submitted as homework to ERR
- Goals for Aug 8 Review
- Other business