February 24, 2020 - Resource meeting
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Agenda
- Walk the beam line
- PSS, BPM's, Prebuncher
Tally components by systems media:200209_ResourceMeeting.xlsx
Correctors (21 pairs , down from 23 pairs)
- Will re-use existing MBH (long Haimson), MHB (short Haimson), MHD (on A1 cube), and eliminate MAD in favor of another type
- Total number of H/V pairs is 21 (goes down by 2 pair, so should free up 4 channels)
Dipoles (2: same number)
- PO written for 1+1 new 15 deg dipole fits on 3" OD pipe (replaces existing similar MDS fits on 2.5" pipe)
- 500 keV spectrometer dipole (MBO) will either be re-used as-is, possibly modified for taller vacuum chamber aperture
Solenoids (11: same number)
- Gun to Chopper region : retain two FG solenoids + upgrade the FH, FB, FQ with three new FX solenoids
- Chopper : retain two FA solenoids captured to chopper cavities + upgrade the two FD solenoids with two new FY solenoids (TBD: one or two PS)
- Chopper to Booster : upgrade FA, FL with two new FX solenoids
Quadrupoles (6: same number)
- Replace existing 6 quads (types QW, QU) with two new triplets (3Q), under design now
- If design is late or does not come to fruition, may retain the 6 quads we have now
- Right now, retain one skew quad MQS0I07, but should be eliminated by improved Booster module
Earth Coils (2: same number)
- One coil across chopper
- One coil across chopper-booster
Wien Filters (2: same number, Vertical then Horizontal)
- PO written for 2+1 pairs of 200 keV coils to retrofit on dipole steel
- New electrodes under test at UITF
Viewer/Camera combos (13: same number)
- Same in each region, go figure
- YAG screens at TBD locations, metal markings on rear, metalized face for charge, Marcy getting bids from Radiabeam
BPM's (15, up from 11)
- Gun to Chopper : increase count by one, and we're thinking on a standardized 2.5" OD w/ Haimson for first three after gun
- Chopper to Booster : increase count by three, Phil is tallying available spare cans, need another BPM crate?!? :(
Harps (2, down from 3)
- Gun to Chopper - one harp, removed an unpowered harp)
- Spectrometer - retain harp
Current monitored apertures (8: same number)
- Retain two insertable Faraday cups (PCUP, FC1); retain same hardware crash inhibit function
- Retain some one spectrometer dump (DL)
- A1 = retain, but would like remote linear control (has manual linear control)
- A2 = retain as-is, PSS function
- MS = retain, improve linear bellows
- A3 = retain, as-is PSS function
- A4 = retain, as-is PSS function
Grounded apertures (4: same number)
- Chopping apertures A,B,C on improved linear bellows assembly, with new stepper controls
- Central plug
Cavity monitors (1: reduced by 1)
- Gun to chopper - Remove Brock cavity
- Chopper to booster - Retain YAO cavity
RF (same, w/o capture)
- Prebuncher - existing SS or new Cu cavity; will need new amplifier, evaluating in GPT then convert to gradient/Watts
- Choppers 1/2 - same, new spare amplifiers purchased already
- Buncher - retain
- Warm capture - remove
- SRF - replace 5+5 w/ 2+7
PSS (same number)
- PSS kicker, retain - verify good for 200 keV at proposed location
- A3/A4 - retain as-is
- 500 keV dipole - modify limits for 200 + buncher keV inj seg mode only, and if dipole height increased
Vacuum valves (7, increased by 1)
- Gun to chopper - same three valves, but last viton valve VBV0I02 will become 2-3/4" all metal
- Chopper to booster - increase w/ new viton valve after chopper to improve vacuum isolation for venting chopper
- Spectrometer - retain valve
Vacuum ion pumps (17, reduce by 4)
- Gun to chopper - retain same number, using UHV supplies
- Chopping chamber - retain chopper cavities, reduce pump on chamber
- Chopper to booster - reduce by 4, should all be on capture
- Spectrometer - retain 1
Bullets from last meeting...
- New 200kV small shed cathode electrode at machine shop (like electron at UITF)
- New gun 10" anode flange being designed to locate a steering coil closer to the gun
- Phil/Marcy starting to NEG coat vacuum chambers; need a 1kW sputtering PS that works (1 kV, 1 mA)
- PO for 200 kV injector solenoids written (delivery April - June)
- Shaun designed alignment fixture for new beam line solenoids
- PO for 200 kV Wien magnet coils written (delivery March)
- Success applying +/- 20kV to UITF Wien! Testing w/ better vacuum comes next...
- PO to be written for new 15 deg dipole next week
- Chase assigning new names for dipole and solenoids
- Starting to study which laser vacuum window to use 2-3/4" as-is, or 4-1/2"
- Curt waiting on kV spec for prebuncher @ 200 kV, for Watt in S.S. cavity
- Reza/Alicia/Dennis evaluating re-ordering of layout
- Looking at installing valve downstream of chopper #2 this down, possibly during fc#1 repair
- Gary Cheng inquiring about checking cryo lines between QCM and Booster
- 5D beam line will be removed
- Neil/Anthony working plan to build table to move QCM/Booster
ATLIS Tasks
AIPINJ
- Testing Wien HV Controls at UITF
- Accelerator network re-survey
- Remove and re-install BPM's Gun to chopper
- Install new IPM2I03
- Remove and calibrate current monitoring electronics
- Harp work
Non-AIPINJ
- New Gun2 loading chamber
- Placeholder for Tim Minga to test laser room smoke detector alarm to MCC/Guard
Quick links
Injector upgrade calendar
- Run (now - May 6)
- Phase 1 (May 6 - end of 2020)
- Run (Jan 2021 - Sep 13 2021)
- Phase 2 (Sep 13 - end of 2021)
Costing project=
- Costing rest of project
- Run (now - May 6) - FY20 now...
- Phase 1 (May 6 - end of 2020) - Starts in FY20, ends in FY21
- Run (Jan 2021 - Sep 13 2021) - FY21
- Phase 2 (Sep 13 - end of 2021) - Starts in FY21, ends in FY22