Difference between revisions of "November 14, 2018 - Group Meeting"

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:: Thu 12/20 - Machine off at 8am for Holiday break
 
:: Thu 12/20 - Machine off at 8am for Holiday break
  
:Gun2 QE
+
:'''Gun2 QE'''
 
::[https://logbooks.jlab.org/entry/3626026 Gun2 lifetime and recent QE scan]
 
::[https://logbooks.jlab.org/entry/3626026 Gun2 lifetime and recent QE scan]
 
::[https://logbooks.jlab.org/entry/3626670 Spot Move 11/15/18]
 
::[https://logbooks.jlab.org/entry/3626670 Spot Move 11/15/18]
::High Polarization in Hall B
+
:'''High Polarization in Hall B'''
 
::[https://logbooks.jlab.org/entry/3619778 Hall B Moller and Beam Energy]
 
::[https://logbooks.jlab.org/entry/3619778 Hall B Moller and Beam Energy]
 
::[https://logbooks.jlab.org/entry/3610318 Mott measurements]
 
::[https://logbooks.jlab.org/entry/3610318 Mott measurements]
:SF6 Relief Valve
+
:'''SF6 Relief Valve'''
 
::[https://logbooks.jlab.org/entry/3621341 SF6 relief valve leaky]
 
::[https://logbooks.jlab.org/entry/3621341 SF6 relief valve leaky]
 
::[https://logbooks.jlab.org/entry/3626304 On-Call Repair]
 
::[https://logbooks.jlab.org/entry/3626304 On-Call Repair]
:Easy Button Not So Easy
+
:'''Easy Button Not So Easy'''
 
::[https://logbooks.jlab.org/entry/3621315 Hall A Laser restoring]
 
::[https://logbooks.jlab.org/entry/3621315 Hall A Laser restoring]
:Vertical Wien Filter Current Instability
+
:'''Vertical Wien Filter Current Instability'''
 
::[https://logbooks.jlab.org/entry/3621950 Vertical Wien PS instability addressed]
 
::[https://logbooks.jlab.org/entry/3621950 Vertical Wien PS instability addressed]
:PQB Studies
+
:'''PQB Studies'''
 
::[https://logbooks.jlab.org/entry/3624989 Low QE => Large Q Asym]
 
::[https://logbooks.jlab.org/entry/3624989 Low QE => Large Q Asym]
 
::[https://logbooks.jlab.org/entry/3625504 Helicity board signal vs. setpoint]
 
::[https://logbooks.jlab.org/entry/3625504 Helicity board signal vs. setpoint]

Revision as of 17:37, 15 November 2018

Fall 2018 Run, January 2019 SAD and Beyond...

2018 CEBAF Fall Run

Program through Christmas
Tue 11/20 - Hall A turns off for rest of the year
Mon 11/26 - Linac and Pass changes (ABCD = Off/4/2/5.5) => Wien change for B
Mon 12/10 - Linac and Pass changes (ABCD = Off/4/3/5.5) => Wien change for B
Thu 12/20 - Machine off at 8am for Holiday break
Gun2 QE
Gun2 lifetime and recent QE scan
Spot Move 11/15/18
High Polarization in Hall B
Hall B Moller and Beam Energy
Mott measurements
SF6 Relief Valve
SF6 relief valve leaky
On-Call Repair
Easy Button Not So Easy
Hall A Laser restoring
Vertical Wien Filter Current Instability
Vertical Wien PS instability addressed
PQB Studies
Low QE => Large Q Asym
Helicity board signal vs. setpoint

2018 LERF Status

LERF Driver Laser Enclosure Certified
LERF PSS Certification - Support for Gun and Laser enable

January 2019 CEBAF SAD

Heat/Activate Gun2 Photocathode SLSP
John ordered small tank to top off SF6
Install RTP Pockels cell
Implement 1kV anode safe floating bias supply inline with anode-picoammeter
Fiducialize IHA2D00 for Bubble
Restore/HCO helicity magnets?
Accelerator electricians to install two new racks + cable tray in ISB for 200KV Wien HVPS and address iocin6 load
Install DBR?

Beyond