2021-08-18

Meeting Information

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Agenda

Schedule

Long Term Schedule: Gantt (Outstanding tasks)

1. 8/9/21 Start Hot Check-out
2. 8/23/21 Start commissioning (2 weeks)
3. 8/23 BNNT cooldown in CMTF
4. 9/7/21 Perform experiment (3 weeks)
5. 10/18 C50R in CMTF
6. Booster qualification following experiment until cryo trade to CMTF

New items for discussion:

General:

• Updated Ops Page
• Commissioning plan (basic)
• Commissioning plan (detailed, to break into shift plans)

Reports by Group:

Experiment:

• COO/ESAD/RSAD prepared; committee response delivered. ERR walk-through yesterday.

CIS/EGG:

• Gun operating at 180kV w/o Field Emission following rebuild, HV conditioning, and Kr processing (Many thanks to all involved!!)
• Y-dipole interlock unbypassed in Glassman HVPS. Resistor tank removed; gun cabled directly to HVPS.
• Gun HVPS locked out , reconnect gun valve, charge NF3, degas heater/puck, get UITF laser on (8/4)

• Puck 8 moved to prep, heated, and de-gased. Some inhomogeneities observed. Puck heated and activated with low QE; laser alignment today.
• Puck 18 to chamber for rough drive laser alignment.

Gun bake pump hi-potted.

• Make photocathode (8/5) [Joe/Max]
• Align laser to photocathode, using retro and QE (8/5) [Shukui]
• Gun rebuild wiki

Old insulator (punctured) & Old puck manipulator/schneedle for reference; both replaced. Very modest SF6 leak id-ed on top of HV tank; will repair when practical.

DC Power:

• Trims:
  1. Trim magnets near gun re-cabled.
  2. Wastewater beam line trims cabled up.
  3. Trim magnets near FC#3: 401H/V (completed) & 501H/V correctors + 501 quad. Many polarity checks completed. 501 correctors re-designated
• Former PEPPo solenoid repaired, mapped, and installed.
• Solenoid PS being installed. Supply placed, cables pulled, cabled, and LCW hooked up.
• MHB magnet re-designation to MLH to avoid confusion: Chris Gould making nomenclature changes / Gary Croke & Michele Joyce making controls changes / Eric Forman to update Quick Reference Drawing / Shaun to take care of song sheets
• Changes made in UED workspace for names and field maps; ready to merge soon. (Thanks Gary/Michele!)
• Replacement of cards and utility chassis' acquired for CEBAF under way...

Instrumentation and Controls:

Viewer system status [IC; Norris/Vennekate/McCaughan]

• Recable 2 viewers in keV whose channels & hardware were appropriated for HDice (done)
• Reconnect IYGM401 insertion depth adjusted
• ITVM703 limit switch requires attachment; 800-line viewers non-communicating.
• Brian Freeman available for adViewer work for video camera for ITVM604A? Dome focusing still required...

Wire Scanners [Delacruz/Poelker]

• Harps all pass signal injection and stroke.

Chopper Controls (Windham/Lu)

• Target Motion Control - Carriage remotely operable, step count needs some fine tuning.
• Control Screen complete?

BPMs (Windham / Hesse / McCaughan)

• Re-label IOCs/BPMs locally.

Faraday Cups / Picoammeters (Francis)

• FC2 unlocked for HCO
• Connections removed for shielding installation per RCG.
• Picoammeters all good - some screen work required.

Vacuum (Ketchum/Kortze)

• VBVM501 & VBVM602 slow valve connections. VBVM602 is new installation.
• VFVM401 Fast Valve limit switches adjusted; Kortze working firmware
• VCGM604 Cathode Gauge cabled
• NEG on MeV spectrometer line reactivated.
• VIPM301A/B hi-potted.

BCM

• BCM project software integration under way between Musson/Seaton and Sue Witherspoon

RF/Cryo:

• Booster at 2K and full
• Laser RF HCO

SSG:

BLM installation underway:

• Replace those previously removed
• Additions
  1. In crotch of MeV/Wastewater selecting dipole.
  2. Near 1st new diagnostic cross d.s. of solenoid
  3. Near 2nd new diagnostic cross by FC4
  4. D.S. of target after lead shielding

FSD inputs (original)

• Target motion (now software interlock)
• Solenoid (Now engineered control)
• BCM current clamp system
• Update gold masking

ME / Installation:

• Pb stacked; RCG required modification due to permanent shielding req delay.
• New designs for FC3 and FC4 with a great many thanks to Shaun for the design work and John/Xi for Pb arrangement and table construction!
• Songsheet being updated by Shaun; be sure to let him know when changes are made!
• Permanent shielding purchase in progress - FML (Russ) for most current details
• Unistrut mounting for cables when available
• Mount gas bottle rack in Labyrinth (Staged); remove gas bottles to rack.

Sys Admin:

• 4th terminal system in Control room under assembled/rebuilt
• Wall server configured
• Need to configure wall monitors and install small networked printer.

• List of Engineering Jobs remaining

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