Difference between revisions of "January 13, 2020 - Service providers"
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:-CIS/INJ/CASA are simulating and evaluating layout for functionality and performance now | :-CIS/INJ/CASA are simulating and evaluating layout for functionality and performance now | ||
:-Goal is to finalize ME layout and the before v. after by late Feb, give or take | :-Goal is to finalize ME layout and the before v. after by late Feb, give or take | ||
− | * | + | *Vacuum |
− | + | :-Valves, same number, maybe one less | |
− | + | :-IPs, Marcy has as-is tally, should be OK, may need to order couple small pumps | |
− | + | :-DP stations, new NEG's for Y- and DP chamber, otherwise the same | |
− | + | *Magnets | |
− | + | :-Solenoids (beamline+chopper), updated bids due Wed 1/15, anticipate quick turnaround | |
− | + | :-Wien filters, PO written, coils due early march | |
− | + | ::-Still need two 20A PS installed | |
− | + | ::-Still need WIen filter HV PS, switches, cables installed | |
− | + | :-15 deg dipole, bids received, anticipate PO within a ~week (more S&A work than usual) | |
− | + | ::-1 trims now w/ comparator, need the same | |
− | + | :-Haimons-style steering coils, should have enough in hand, will order spares once layout done | |
− | + | :-Wien correction quads, TBD depends on layout/modeling, may re-use peanut quads initially | |
− | + | ::-6 trims now, probably need less | |
− | + | *Diagnostics | |
− | + | :-Harp, have two now, aiming for one later | |
− | + | :-Viewers, repair cracked YAG; tally is similar to what we have now, final TBD | |
− | + | :-Brock cavity, goes away | |
− | + | :-Current monitors, keep A1/A2/PCUP | |
− | + | :-BPM's, TBD, but similar number | |
− | + | :-Magic beam locating device, none | |
− | + | *RF | |
− | + | :-prebuncher, probably the same, but need more power >30W?...TBD | |
− | + | :-choppers, leave as-is and decided to retain the captured solenoids (so no vacuum work or removal) | |
− | + | *Chopping chamber | |
− | + | :Designing entirely new 1:1 replacement, not sure it will be ready this SAD, but that's the goal, stay tuned | |
− | |||
===Timeline=== | ===Timeline=== |
Revision as of 11:03, 13 January 2020
Service providers discussion
Scope of 2020 SAD
- Booster will remain at UITF in 2020 to commission HDIce, nominally moves to CEBAF in 2021 during summer SAD.
- During the 2020 SAD we will...
- -Make the gun operate at 200 kV (A: make present gun operate 200 kV, B: install new electrode)
- -Reconfigure beam line extending from gun up to chopper (stretch goal is replace chopping chamber itself)
- -Commission the gun + beam line with 200 keV beam
Beyond 2020 SAD
- We will not modify the configuration downstream of chopper until new Booster goes in
- -This means the capture and QCM remain until Booster installed
- -This also means we'll operate the gun and beam line at 130 keV until that time too
Status of the 2020 beam line upgrade
- Layout
- -We have a preliminary ME layout, w/ sequence and approximate tally of elements
- -CIS/INJ/CASA are simulating and evaluating layout for functionality and performance now
- -Goal is to finalize ME layout and the before v. after by late Feb, give or take
- Vacuum
- -Valves, same number, maybe one less
- -IPs, Marcy has as-is tally, should be OK, may need to order couple small pumps
- -DP stations, new NEG's for Y- and DP chamber, otherwise the same
- Magnets
- -Solenoids (beamline+chopper), updated bids due Wed 1/15, anticipate quick turnaround
- -Wien filters, PO written, coils due early march
- -Still need two 20A PS installed
- -Still need WIen filter HV PS, switches, cables installed
- -15 deg dipole, bids received, anticipate PO within a ~week (more S&A work than usual)
- -1 trims now w/ comparator, need the same
- -Haimons-style steering coils, should have enough in hand, will order spares once layout done
- -Wien correction quads, TBD depends on layout/modeling, may re-use peanut quads initially
- -6 trims now, probably need less
- Diagnostics
- -Harp, have two now, aiming for one later
- -Viewers, repair cracked YAG; tally is similar to what we have now, final TBD
- -Brock cavity, goes away
- -Current monitors, keep A1/A2/PCUP
- -BPM's, TBD, but similar number
- -Magic beam locating device, none
- RF
- -prebuncher, probably the same, but need more power >30W?...TBD
- -choppers, leave as-is and decided to retain the captured solenoids (so no vacuum work or removal)
- Chopping chamber
- Designing entirely new 1:1 replacement, not sure it will be ready this SAD, but that's the goal, stay tuned
Timeline
- HV Condition Gun2 (1 week)
- (X shifts) Tee to 200 kV
- Gun/NEG tube vacuum work (2-3 weeks)
- (10 day) Small shed bake
- (X day) HV condition small shed @ 200 kV
- (3 day) Replace NEG tube + anode flange
- Rebuild beam line (7-8 weeks)
- (2 days) Make everything safe
- (3 days) Disconnects of cables and controls and dumping of penetrations
- (2 days) Girder vacuum disconnects and removal to labs and tunnel storing
- (2-3 weeks) Wien breakdown + shop work + re-assembly + HV testing + mapping)
- (2-3 weeks) Populating new girder layouts with existing hardware + alignments
- (3 days) Pedestal modifications
- (1 week) Installation, 1A, vacuum hookups, 2A
- (2 weeks) Bakeouts
- (1 week) Cable reconnects and HCO
- Beam Commissioning Jobs (2-3 weeks)
- (9 shift) HCO w/ beam first time
- (2 shift) Injector steering script for new location of correctors and bpm’s
- (4 shift) Wien filter spin calibration w/ Mott (at 130 keV)
- (4 shift) Wien optics measurements and quadrupole correction
- (2 shift) Dipole optics measurement to finalize shims
- (2 shift) Develping a matching criteria
- (1 shift) PSS kicker @ 130 keV and 200 keV
- (9 shift) Gun lifetime checkout