Difference between revisions of "Photon Beam Commissioning Discussion July 16, 2014"
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== References == | == References == | ||
− | * [https:// | + | * [https://halldweb.jlab.org/hdops/wiki/index.php/Hall_D_Commissioning Hall D Commissioning Pages] |
* [[Media:HallD_beam_delivery_proc_1b9.pdf | DRAFT Accelerator Hall D Beam Delivery Procedures(V.1b9)]] | * [[Media:HallD_beam_delivery_proc_1b9.pdf | DRAFT Accelerator Hall D Beam Delivery Procedures(V.1b9)]] | ||
* [[Media:Tagger_operation_procedure.docx | DRAFT Accelerator Tagger Magnet Operation Procedures(V. 0)]] | * [[Media:Tagger_operation_procedure.docx | DRAFT Accelerator Tagger Magnet Operation Procedures(V. 0)]] | ||
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* <strike> Check that RadCon detectors are available/installed in tagger hall and hall D (Alexandre) </strike> Draft plan with Radcon is in place and will be pursued | * <strike> Check that RadCon detectors are available/installed in tagger hall and hall D (Alexandre) </strike> Draft plan with Radcon is in place and will be pursued | ||
* <strike> Check that 'rapid access system' is being implemented in Hall D (Alexandre) </strike> Draft plan with RadCon is in place and will be pursued. | * <strike> Check that 'rapid access system' is being implemented in Hall D (Alexandre) </strike> Draft plan with RadCon is in place and will be pursued. | ||
− | * <strike> Organize preparations for review (Elton). </strike> See | + | * <strike> Organize preparations for review (Elton). </strike> See minutes |
== Agenda == | == Agenda == | ||
Line 30: | Line 30: | ||
# Electron Commissioning (Todd/Mike) | # Electron Commissioning (Todd/Mike) | ||
# Photon Commissioning Draft (Alexandre) | # Photon Commissioning Draft (Alexandre) | ||
+ | # Radiation monitors | ||
+ | # Aug 8 Review: | ||
+ | # Other business | ||
+ | |||
+ | == Minutes == | ||
+ | |||
+ | ''Attending:'' Elton, Alexandre, Hovanes, Eugene, Sasha (Hall D); Todd, Michael (Accelerator) | ||
+ | |||
+ | # Announcements | ||
+ | # Electron Commissioning (Todd/Mike) | ||
+ | #* Procedures were scanned and comments made. Alexandre has read the documents and asked for some clarifications | ||
+ | #* Specifically, the plan is general and needs to be adapted to the commissioning. For beam delivery #58 should be changed to active collimator long term. For the commissioning we need to insert a test plan to align the photon beam. | ||
+ | #* Specific comments to the procedures can be sent to Michael. | ||
+ | # Photon Commissioning Draft (Alexandre) | ||
+ | #* Thickness of radiators discussed and settled | ||
+ | #* Plan to use cw for beam delivery with radiator inserted. Goal is to use about 100 nA. | ||
+ | #* Alexandre has updated the procedure based on comments from last week and will also adjust based on comments today | ||
+ | #* Discussion (unresolved) on how many locations to place the profile monitor: a) in front of collimator [for initial alignment] b) upstream of target [under discussion] c) downstream of Fcal [long term operation] | ||
+ | #* Need to update the photon beam commissioning procedure with quantitative rates and ranges of expected tuning parameters, e.g. currents in corrector magnets | ||
+ | # Radiation monitors | ||
+ | #* Alexandre is in communication with RadCon to borrow some radiation monitors for the commissioning run. | ||
+ | #* neutron, gamma monitors in tagger hall (one at the electronic rack location, one at the microscope location) | ||
+ | #* gamma monitor in collimator cave. | ||
+ | #* Monitors could be purchased later if we believe they are necessary for long-term use. | ||
# Aug 8 Review: Location CC L102 | # Aug 8 Review: Location CC L102 | ||
#* Reviewers: Mike Spata, Brian Freeman, Stepan Stepanyan | #* Reviewers: Mike Spata, Brian Freeman, Stepan Stepanyan | ||
Line 36: | Line 60: | ||
#* Talks: Overview/Goals/Charge (Eugene); Photon beam properties (Richard); Electron beam commissioning (Michael); Photon beam commissioning (Alexandre) | #* Talks: Overview/Goals/Charge (Eugene); Photon beam properties (Richard); Electron beam commissioning (Michael); Photon beam commissioning (Alexandre) | ||
# Other business | # Other business | ||
− | + | #* Next meeting: Wed Jul 23 4 pm. | |
− | + | ||
− | + | ||
− | * | + |
Latest revision as of 17:22, 31 March 2015
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
- Hall D Commissioning Pages
- DRAFT Accelerator Hall D Beam Delivery Procedures(V.1b9)
- DRAFT Accelerator Tagger Magnet Operation Procedures(V. 0)
- DRAFT Accelerator Hall D Ion Chamber Functional Test Procedure(V.1b3)
- DRAFT Accelerator Hall D Ion Chamber Calibration Procedure(V.1b2)
Action Items
-
Send link to accelerator commissioning procedure (Mike) - Send Todd a geometry of tagger area, including the mapped tagger magnet field, for GEANT simulations (Richard). Sasha says he will do this
-
Todd will provide the magnetic field of the quadrupole immediately upstream of the tagger magnet (Todd)Todd has requested the information and will pass it on when he gets it -
Check that radiator set for commissioning is available (Alexandre, Hovanes)Material for 2x10^-4 available, Alexandre will order the 1x10^-4 material -
Check that RadCon detectors are available/installed in tagger hall and hall D (Alexandre)Draft plan with Radcon is in place and will be pursued -
Check that 'rapid access system' is being implemented in Hall D (Alexandre)Draft plan with RadCon is in place and will be pursued. -
Organize preparations for review (Elton).See minutes
Agenda
- Announcements
- Electron Commissioning (Todd/Mike)
- Photon Commissioning Draft (Alexandre)
- Radiation monitors
- Aug 8 Review:
- Other business
Minutes
Attending: Elton, Alexandre, Hovanes, Eugene, Sasha (Hall D); Todd, Michael (Accelerator)
- Announcements
- Electron Commissioning (Todd/Mike)
- Procedures were scanned and comments made. Alexandre has read the documents and asked for some clarifications
- Specifically, the plan is general and needs to be adapted to the commissioning. For beam delivery #58 should be changed to active collimator long term. For the commissioning we need to insert a test plan to align the photon beam.
- Specific comments to the procedures can be sent to Michael.
- Photon Commissioning Draft (Alexandre)
- Thickness of radiators discussed and settled
- Plan to use cw for beam delivery with radiator inserted. Goal is to use about 100 nA.
- Alexandre has updated the procedure based on comments from last week and will also adjust based on comments today
- Discussion (unresolved) on how many locations to place the profile monitor: a) in front of collimator [for initial alignment] b) upstream of target [under discussion] c) downstream of Fcal [long term operation]
- Need to update the photon beam commissioning procedure with quantitative rates and ranges of expected tuning parameters, e.g. currents in corrector magnets
- Radiation monitors
- Alexandre is in communication with RadCon to borrow some radiation monitors for the commissioning run.
- neutron, gamma monitors in tagger hall (one at the electronic rack location, one at the microscope location)
- gamma monitor in collimator cave.
- Monitors could be purchased later if we believe they are necessary for long-term use.
- Aug 8 Review: Location CC L102
- Reviewers: Mike Spata, Brian Freeman, Stepan Stepanyan
- Charge/Schedule (Elton/Eugene)
- Materials: Accelerator Procedures (Mike); Plan for photon beam commissioning (Alexandre)
- Talks: Overview/Goals/Charge (Eugene); Photon beam properties (Richard); Electron beam commissioning (Michael); Photon beam commissioning (Alexandre)
- Other business
- Next meeting: Wed Jul 23 4 pm.