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COMMENT ON Replace Shunt MXC7S06 for ARC7 Box Supply
COMMENT ON B02 (S. Linac) Replace bad ballast
RF On/Off turned RF On
QuickPic - Turned off Arc7 for MXC7S06 shunt module replacement
Box Supplies Turned on and Cycled Once
Log Number: 4475636Logbook(s): Tags: Body:
The following box supplies were TURNED ON AND CYCLED ONCE by version 2-16 of the Box Supply Cycling Script:
ARC1A Ramp Rate = 7.400 A/s
ARC2A Ramp Rate = 6.712 A/s
ARC3A Ramp Rate = 9.294 A/s
ARC4A Ramp Rate = 10.144 A/s
ARC5A Ramp Rate = 9.307 A/s
ARC6A Ramp Rate = 8.835 A/s
ARC8A Ramp Rate = 11.455 A/s
ARC9A Ramp Rate = 9.322 A/s
ARCAA Ramp Rate = 11.756 A/s
RSEP8A Ramp Rate = 10.544 A/s
RSEP9A Ramp Rate = 4.865 A/s
XSEP2T Ramp Rate = 5.386 A/s
XSEP4T Ramp Rate = 5.186 A/s
XSEP6T Ramp Rate = 9.209 A/s
XSEP8T Ramp Rate = 16.057 A/s
XSEPAT Ramp Rate = 16.476 A/s
QuickPic - SL Partial Survey
Restoring C-beam to ILD
Log Number: 4475632Logbook(s): Entry Makers: bschaumlBody:
Fig. 1: C-beam restored after setting 4D to straight-ahead and cycling. Phasing things obviously threw things off the rels quite a bit.
Fig. 2: C-beam steered to rels. 0R will have to be adjusted due to the energy having been off.
Handing off to Max for Wien setup
Autolog save
Pulse processed 1L07 and 1L09 please do FE onset measurements on swing/owl.
Log Number: 4475629Logbook(s): Body:
I finished pulse processed 1L07 today and 1L09 yesterday afternoon. Please do FE onset measurements on swing/own will it will no interfere with recovering other zones. When you turn off up stream and down stream zones (several either way) close the upstream beam line valve on 1L06 and the down stream valve on 1L10 in order to avoid dark current from curupting the measurements.
SRF Pulse processing 1L07 finished
Checking Beams to 4D
Log Number: 4475627Logbook(s): Entry Makers: bschaumlBody:
Figs. 1-3: Collinearity as found
Fig. 4: C-beam as found to the 4D
Fig. 5: C-beam on 4D viewer after phasing 0L03 & 0L04
Fig. 6: Changes to phases and energy lock cavity
Figs. 7-13: Variation of B-beam and D-beam on 4D viewer with changes to phase. They're both kinda funky and not responding to phase changes as I might expect; exhibiting a sort of s-shaped path on the viewer as I swing phase around. Perhaps something strange to do with the optics variations between beams due to the collinearity being off? I'll move on to seeing if I can improve that.
RF On/Off turned RF Off
Box Supplies Were Turned Off
Box Supplies Were Turned Off
Log Number: 4475624Logbook(s): Tags: Body:
The following box supplies were TURNED OFF by version 2-16 of the Box Supply Cycling Script:
DOG2E Ramp Rate N/A
DOG4E Ramp Rate N/A
DOG6E Ramp Rate N/A
DOG8E Ramp Rate N/A
XSEP2T Ramp Rate = 4.972 A/s
XSEP4T Ramp Rate = 4.630 A/s
XSEP6T Ramp Rate = 8.551 A/s
XSEP8T Ramp Rate = 14.597 A/s
XSEPAT Ramp Rate = 15.209 A/s
COMMENT ON Hall C Vacuum Controls HCO/Troubleshooting
Log Number: 4475623Logbook(s): Body:
Removed valve simulator boxes for valves VBV3C20 and VBV3H04. Both showing actual position of valves in epics.
Vacuum group is still pumping on the 3H04 section of the beamline. Still not good enough to keep power supplies for VIP3H04, VIP3H07A and VIP3H07B from faulting off. Talked to Vacuum group, VBV3H07 valve might have a small leak.
COMMENT ON Replace Shunt MXC7S06 for ARC7 Box Supply
Autolog save
Follow-up Re: Please do not ramp/apply voltage to the gun
Log Number: 4475618Logbook(s): Tags: Body:
Updating the guidance for the operation of the gun high voltage system.
1. Ops can use the standard gun controls to ramp the gun on/off as usual and as needed to support the program.
2. If there is a gun fault unrelated to the PSS (meaning loss or drop of PSS-A/B chain) contact CIS on-call before restoring the gun voltage.
Thanks for your patience,
Joe
FSD Masking Tool: Successful System Masking for: BeamLossMonitor
Shift Information
| Shift | Owl |
|---|---|
| CEBAF Program | |
| MCC Crew Chief | Howard |
| MCC Operators | Price, Chaudhary |
| Program Deputy | Roblin |
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