CEBAF Injector Upgrade

The Injector Upgrade wiki begins here.

Quick Links

• Daily 8:00am + Wed 1:30 MCC => https://bluejeans.com/569476853
• Daily 8:30am toolbox => https://bluejeans.com/171126028
• Monday 1330 SAD Scheduling Meeting => https://bluejeans.com/569476853
• Schedule - updated Jan 25, 2021 w/ Preliminary Commissioning Plan to end of SAD July 2, 2021 media:210125_AIPINJ_Schedule.pdf
• Feb 1, 2021 - Preliminary songsheet release media:210201_PRELIMINARY_ACC0002845-0001, INJECTOR, REV C .pdf
• Link to the Phase 1 ATLIS

Phase 1

Phase 2

Planning, planning, planning...

CIS Phase 1 work plans

Phase 1 - HCO & Commissioning

AIPINJ - Layouts

AIPINJ - S&A Transmittals

AIPINJ - Upgrade Meetings

3D cad and released drawings on AIPINJ OneDrive Folder

Long term planning - AIPINJ - Phase 1 and 2 Schedule

CED related links

• CED nomenclature doc : https://accweb.acc.jlab.org/cnm/codes/system
• CED lookup translator : https://accweb.acc.jlab.org/cnm/translator

Major Phase 1 Beamline Components

200 kV gun - Cathode, anode and high voltage system

200 kV NEG Coated BPM's - New BPM's on beam pipe, NEG coated and absolutely mapped

Y-chamber Laser Window - Evaluating the best window to minimize birefringence under stress

DR dipole (15 deg) - New 15 deg air core bend dipole replaces pre-existing DS dipole

FX beamline and FY chopper solenoids - New double-coil sw/cw capable solenoids with 38 mm (FX) and 46 mm (FY) ID

PSS Kicker (upgraded for 200 kV upgrade) - New PSS kicker of reliable design to operate at 200 kV with shorter throw

WF Wien Filters (200 kV upgrade) - Upgraded Wien filters with 20 A magnetic coils and >18 kV electrodes to rotate spin of 200 keV electrons

QW Wien quadrupoles (200 kV upgrade) - New quads designed for 200 keV energy, w/ improved magnetic field quality

Chopping System (200 kV upgrade) - Choppers get higher power amplifiers, maybe a new chopping chamber

Pre-buncher cavity (200 kV upgrade) - Existing stainless steel pre-buncher replaced by copper cavity for higher power.

NEG coated 2.5 inch OD BPM's - Replacing (2) existing with (3) new BPM's, provide (x,x',y,y') from gun, help tuning

HD steering coils - New steering coils for the A1/A2 aperture cubes, improved design and for 200 keV energy

A1/A2 Aperture Steering Cubes - Reinvented A1/A2 apertures define beam size and PSS kicker destination, include upgraded HD steering coils

Injector upgrade vacuum improvements - Improvements in the vacuum design, use of getter and ion pumps

Beamline viewers

LLRF 3.0 Phase 1

Major Phase 2 Beamline Components

SRF Booster

ATLIS Tasks

AIPINJ

• Injector Wien Filter - system upgrade (2020 SAD)
• Removal of PSS kicker magnet injector segment
• Mat'l Handling and Installation for Phase I of Inj. Upgrade
• Pedestal Location Surveys
• Install Chopper SSA's
• Chopper SSA LCW
• Penetration Drops
• Remove and re-install BPM's Gun to chopper
• Install new IPM2I03
• Remove and calibrate current monitoring electronics
• Harp work
• Testing Wien HV Controls at UITF
• Perform Installation work for newly added Injector bpm during 2020 SAD
• IOCSE11 & IOCINSE4 BPM Controls Update
• Install and Commission Wien filter Power Supplies
• Install PSS jumpers for laser work at the Injector

CIS SAD Tasks

• New Gun2 loading chamber
• Placeholder for Tim Minga to test laser room smoke detector alarm to MCC/Guard
• Fix IHWP readback during SAD

Injector Related SAD Tasks

• Install and Commission Wien filter Power Supplies] (magnet PS)
• Install Ion Pump HV cables and mount Junction boxes on cable trays NL and INJ]
• PSS Injector Interface Chassis removal
• PSS Injector Segment PLC Upgrade
• PSS Injector Interface Chassis removal
• PSS CAMAC Relay cards replacement with VME versions for Injector and BSY
• I&C Injector Camac to Vme and camera upgrade
• I&C Upgrade harps to PC104
• I&C Upgrade existing ItoV System with ItoV VME cards
• I&C Accelerator network re-survey
• FAC Tunnel Fire Alarm and Suppression Replacement
• Apply labels to I&C components during 2020 SAD
• Install Ion Pump HV cables and mount Junction boxes on cable trays NL and INJ
• Neutron Detector System Installation (SAD 2020)
• UHV Power Supply Replacement (ISB)
• Injector (prebuncher, buncher and choppers)- LLRF systems upgrade to 3.0 version
• Trim Utility Chassis Upgrade - All CEBAF Trim Racks
• SAD 2020: P.M. of 24V Vacuum Power Supply Chassis
• VME crate upgrade to IOCIN3
• Remove old Sonitrol system hardware from NA and SA
• Shutdown of Panel I-BT in the Injector
• Insertable CAMAC to VME EPICS Controls upgrade Injector (iocin1->iocin1b)