Free Electron Laser Commissioning/Diagnostic Meeting

Tuesday, July 9, 1996
Recorder: R. Legg

Next Meeting


Date: July 16, 1996
Time: 3:00 - 4:00
Place: Test Lab Conference Room

Attendees


P. Piot, D. Douglas, J. C. Denard, B. Yunn, R. Legg, S. Benson, G. Neil, E. Feldl, and G. Krafft

Items of Discussion


New Issues


Action Items


A-17 Yunn will calculate impedance for BPM cans with a larger, 1mm, gap. This would ease fab and lower cost.

Get your comments in NOW for the commissioning workshop to G. Neil.

Action Items (assigned)


A-01	Update Drawing                                Bohn                weekly
A-02    Magnet Specifications Webbed                  Douglas
A-04    Unit gradient precision                       Bohn, Liu
A-05    Injector energy precision                     Douglas
A-06    10 MeV dump optics                            Douglas
A-09    Dump Instrumentation                          Legg               6/04/96
A-10    Back leg diagnostic placement                 Douglas
A-11   	Multifrequency CSR Measurements               Krafft             6/04/96
A-12    How should the path length be checked?        Krafft, Jordan     6/11/96
A-15    Commissioning Procedure                       Legg, Krafft       5/16/96
A-16    Average Current Measurement/Assess Far. Cup   Legg
A-17    4-Channel BPM on the IRFEL                    Bohn, Denard
A-19    Web Documentation                             Krafft              weekly
A-20    10->42 MeV dump                               Biallas
A-21    Diagnostics reviews                           Jordan             6/11/96 
A-22    Beam dump and scaper design                   Wiseman            6/18/96
A-24    Beam loss                                     Bohn
A-25    Synchrotron Light Monitors                    Krafft
A-26    IR Camera Plan                                Neil
A-27    Autosteer Plan                                Bohn
A-28    Transverse Effects in CSR                     Li
A-29    Software Planning for Longer Term             Bohn
A-30    Burnthrough/Conflat Expansion                 Denard, Kloppel
A-32    10 MeV emittance Plan                         Bohn
A-33    FSD Plan                                      Mahoney, Legg
A-34    Consistent Linac phasing plan                 Yunn

Action Items (pending)


P-01    Determine Beam Pulse structure for setup
P-02    Laser phase modulator
P-03    Slit emittance measurement
P-04    Is an energy compression scheme needed?
P-05    Devise fine-tuning procedure for buncher gradient
P-07    Diagnostics "Freeze"
P-08    How do we change energy? What is the energy range?
P-09    Do we need bunching after the module
P-10    Will the SLM monitor work to center the large beam
P-11    Calculate from Hall C data how much scatter the BPMs can take
P-12    FEL/OTR interaction question
P-13    Do we have sufficient diagnostics for emittance degradation measurements
P-14    How is the gun/laser operated?
P-15    Discussion on robustness of controls??????
P-16    Injector diagnostics in the main machine
P-18    Technote by Yunn summarizing machine impedance
P-19    Consistent linac/bunching phase sets
P-20    Lock plans (who in particular)
P-21    Save/restore plans
P-24    FEL Commissioning review
P-25    RF control sensitivities/Microphonics Diff for FEL/Pathlength effect
P-26    What if studies
P-27    Plan to measure beam loss
P-28    Scrapers: Where and How?
P-29    FEL/linac interaction
P-30    Tracking including realistic wiggler fields
P-31    What drives the vacuum spec.
P-32    Are two sextupole families enough to tune M56
P-33    Is path length feedback needed?
P-35    Coordinated ITS beam running/SRF commissioning plan
P-36    Beam power robust BPMs
P-37    42 MeV dump design and interlocking

Agenda for Next Meeting


                Item                         Person Responsible     Time
                ----                         ------------------     ----
*   Review agenda/corrections to minutes             Legg	    5 min.
*   New drawing                                      Bohn           5 min.
*   Commissioning Workshop                           Neil           5 min.
*   New issues                                                     10 min
*   10/42 MeV dump                                   Douglas       10 min
*   BPM can design	                           Jordan/Yunn     10 min
*   Active item discussion                            All          10 min.
*   Agenda for next meeting		              All	    5 min.