Difference between revisions of "2021-08-11"

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'''CIS/EGG:'''
 
'''CIS/EGG:'''
 
* [https://logbooks.jlab.org/entry/3890263 Gun operating] at 180kV w/o Field Emission following rebuild, HV conditioning, and Kr processing (Many thanks to all involved!!)
 
* [https://logbooks.jlab.org/entry/3890263 Gun operating] at 180kV w/o Field Emission following rebuild, HV conditioning, and Kr processing (Many thanks to all involved!!)
−
* Many improvements and modifications made to prep chamber. New pucks prepared as well.  
+
* [https://logbooks.jlab.org/entry/3890419 Y-dipole] interlock unbypassed in Glassman HVPS. [https://logbooks.jlab.org/entry/3890468 Resistor tank] removed; gun cabled directly to HVPS.
−
* HV tests with a [https://logbooks.jlab.org/entry/3890265 GaAs puck (#8)] in the gun (8/3) [Carlos]
 
 
* Gun HVPS [https://logbooks.jlab.org/entry/3890297 locked out] , reconnect gun valve, charge NF3, degas heater/puck, get UITF laser on (8/4)
 
* Gun HVPS [https://logbooks.jlab.org/entry/3890297 locked out] , reconnect gun valve, charge NF3, degas heater/puck, get UITF laser on (8/4)
−
* Make photocathode (8/5) [Joe/Max]
+
 
 +
* [https://logbooks.jlab.org/entry/3890466 Puck 8] moved to prep, [https://logbooks.jlab.org/entry/3890808 heated], and de-gased. Some [https://logbooks.jlab.org/entry/3890654 inhomogeneities] observed. [https://logbooks.jlab.org/entry/3891654 Puck heated and activated] with [https://logbooks.jlab.org/entry/3891783 low QE]; laser alignment today.
 +
* [https://logbooks.jlab.org/entry/3890867 Puck 18] to chamber for [https://logbooks.jlab.org/entry/3890924 rough drive laser alignment].
 +
 
 +
Gun bake [https://logbooks.jlab.org/entry/3890506 pump hi-potted].
 +
 
 +
*Make photocathode (8/5) [Joe/Max]
 
* Align laser to photocathode, using retro and QE (8/5) [Shukui]
 
* Align laser to photocathode, using retro and QE (8/5) [Shukui]
 
* [https://wiki.jlab.org/ciswiki/index.php/Spring_2021_-_Rebuilding_Photogun Gun rebuild wiki]
 
* [https://wiki.jlab.org/ciswiki/index.php/Spring_2021_-_Rebuilding_Photogun Gun rebuild wiki]
−
* Racks and [https://logbooks.jlab.org/entry/3879710 Mott crate] staged for later experiments
 
 
[https://logbooks.jlab.org/entry/3876613 Old insulator (punctured)] & [https://logbooks.jlab.org/entry/3876061 Old puck manipulator/schneedle] for reference; both replaced.
 
[https://logbooks.jlab.org/entry/3876613 Old insulator (punctured)] & [https://logbooks.jlab.org/entry/3876061 Old puck manipulator/schneedle] for reference; both replaced.
 
[https://logbooks.jlab.org/entry/3882796 Very modest SF6 leak id-ed on top of HV tank]; will repair when practical.
 
[https://logbooks.jlab.org/entry/3882796 Very modest SF6 leak id-ed on top of HV tank]; will repair when practical.
Line 49: Line 53:
 
*# [https://logbooks.jlab.org/entry/3890236 Trim magnets] near gun re-cabled.
 
*# [https://logbooks.jlab.org/entry/3890236 Trim magnets] near gun re-cabled.
 
*# [https://logbooks.jlab.org/entry/3889992 Wastewater beam line] trims cabled up.
 
*# [https://logbooks.jlab.org/entry/3889992 Wastewater beam line] trims cabled up.
−
*# Trim magnets near FC#3: 401H/V (completed) & 501H/V correctors + 501 quad
+
*# Trim magnets near FC#3: 401H/V (completed) & [https://logbooks.jlab.org/entry/3890985 501H/V correctors] + 501 quad. Many [https://logbooks.jlab.org/entry/3891455 polarity checks] completed. 501 correctors [https://logbooks.jlab.org/entry/3891699 re-designated]
 
* Former PEPPo solenoid repaired, mapped, and installed.
 
* Former PEPPo solenoid repaired, mapped, and installed.
 
* [http://devweb.acc.jlab.org/CSUEApps/uitflist/task/1672 Solenoid PS] being installed. Supply [https://logbooks.jlab.org/entry/3887222 placed, cables pulled], [https://logbooks.jlab.org/entry/3890134 cabled, and LCW hooked up].
 
* [http://devweb.acc.jlab.org/CSUEApps/uitflist/task/1672 Solenoid PS] being installed. Supply [https://logbooks.jlab.org/entry/3887222 placed, cables pulled], [https://logbooks.jlab.org/entry/3890134 cabled, and LCW hooked up].
Line 61: Line 65:
 
''Viewer system status [IC; Norris/Vennekate/McCaughan]''
 
''Viewer system status [IC; Norris/Vennekate/McCaughan]''
 
* Recable 2 viewers in keV whose channels & hardware were appropriated for HDice (done)
 
* Recable 2 viewers in keV whose channels & hardware were appropriated for HDice (done)
−
* Reconnect IYGM401 (formerly ITV, now YAG)
+
* Reconnect IYGM401 [https://logbooks.jlab.org/entry/3891702 insertion depth adjusted]
−
* Drag cable and connect IYGM603 and IYGM603 (appropriated from HDice line, swapped ITV > YAG).
+
* ITVM703 limit switch requires attachment; 800-line viewers [https://logbooks.jlab.org/entry/3891709 non-communicating].
 
* Brian Freeman available for adViewer work for video camera for ITVM604A? Dome focusing still required...
 
* Brian Freeman available for adViewer work for video camera for ITVM604A? Dome focusing still required...
  
  
 
''Wire Scanners [Delacruz/Poelker]''
 
''Wire Scanners [Delacruz/Poelker]''
−
* IHAM703 Status (Scanner swapped out)
+
* Harps all pass signal injection and stroke.
−
 
 
−
 
 
−
''Chopper Controls (Windham/Lu)''
 
−
* STAC5 Controls replacement (done)
 
−
* Encoder mapping (divide steps /10 over last controller)
 
−
* Controls transparent to user
 
−
 
 
  
 
''Chopper Controls (Windham/Lu)''
 
''Chopper Controls (Windham/Lu)''
Line 82: Line 79:
  
 
''BPMs (Windham / Hesse / McCaughan)''
 
''BPMs (Windham / Hesse / McCaughan)''
−
* Install new BPMs on line (completed)
+
* Re-label IOCs/BPMs locally.
−
* Map DR receivers to appropriate chassis ([https://logbooks.jlab.org/entry/3884311 completed])
 
−
* Correct all naming and controls issues
 
−
* Re-label locally.
 
  
  
 
''Faraday Cups / Picoammeters (Francis)''
 
''Faraday Cups / Picoammeters (Francis)''
−
* FC cups 3 & 4 installed in new locations and under vacuum
+
* FC2 unlocked for HCO
−
* Cables / air lines /etc pulled to new locations and installed
 
 
* Connections removed for shielding installation per RCG.
 
* Connections removed for shielding installation per RCG.
 
* Picoammeters all good - some screen work required.
 
* Picoammeters all good - some screen work required.
Line 97: Line 90:
 
''Vacuum (Ketchum/Kortze)''
 
''Vacuum (Ketchum/Kortze)''
 
* VBVM501 & VBVM602 slow valve connections. VBVM602 is new installation.
 
* VBVM501 & VBVM602 slow valve connections. VBVM602 is new installation.
−
* VFVM401 Fast Valve installation
+
* VFVM401 Fast Valve [https://logbooks.jlab.org/entry/3890917 limit switches adjusted]; Kortze working firmware
−
* VCGM604 Cathode Gauge installed
+
* VCGM604 Cathode Gauge cabled
−
* VGPM401, 603, 604, and 703 NEG pumps - installation completed, activated, status of remote powering?
+
* NEG on MeV spectrometer line [https://logbooks.jlab.org/entry/3891467 reactivated].
−
* Numerous VIPs installed, functional, on EPICS, and archived.
+
* [https://logbooks.jlab.org/entry/3891718 VIPM301A/B hi-potted].
−
* Thin Ti window installed by experiment, pumped down, leak checked , and signage / PPE posted.
 
  
  
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−
'''RF:'''
+
'''RF/Cryo:'''
−
* [https://logbooks.jlab.org/entry/3885411 6GHz] > 1.5GHz Down-converter installed for bunch length system
+
* [https://logbooks.jlab.org/entry/3891503 Booster at 2K] and full
−
* LLRF 2.0 FCC for reading signal
 
 
* Laser RF HCO
 
* Laser RF HCO
  

Latest revision as of 07:54, 11 August 2021

Meeting Information

Connecting

To connect to the meeting, please do the following: Time: Wednesday at 9:00 AM EST.

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Agenda

Schedule

Long Term Schedule: Gantt (Outstanding tasks)

  1. 8/9/21 Start Hot Check-out
  2. 8/16/21 Start commissioning (2 weeks)
  3. 8/23 BNNT cooldown in CMTF
  4. 8/30/21 Perform experiment (2 weeks)
  5. 10/18 C50R in CMTF
  6. Booster qualification following experiment until cryo trade to CMTF

New items for discussion:

General:

Reports by Group:

Experiment:

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)

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)


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)


BCM

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


RF/Cryo:


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.


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