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HYST AREA 7-0 Cycles Magnets

6 hours 32 minutes ago
Log Number: 4469518Logbook(s): Body: 

HYST AREA Version 7-0 has successfully cycled the following:

MBC7A02V
MQA9A02
MBC9A02V
MBDBT02H
MBDBT02V
MBC5A02V
MQA5A02
MBC3A02V
MQA3A02
MBT1A03V
MQB1A03
MQA7A02
MBDBE02V
MQB1A02
MBC9A01V
MBC9A01H
MQA9A01
MBC7A01V
MBC7A01H
MQA7A01
MBC5A01V
MBC5A01H
MQA5A01
MBC3A01V
MBC3A01H
MQA3A01
MBT1A01V
MBT1A01H

Total Time: 2.917 mins

delk

Differences between UVA RTP HV Driver and JLab RTP HV Driver

6 hours 55 minutes ago
Log Number: 4469506Logbook(s): Entry Makers: suleimanBody: 

While checking signals from the UVA RTP HV Driver and JLab Driver, we identified these differences:

1. The two drivers are out of phase with the helicity signal - see first linked entry.

2. For the UVA Driver, the cables connected to crystal 2 were swapped - see second linked entry.

With the JLab Driver, the PITA slope was measured to be +0.318 ppm/count (IHWP=OUT). The slope measured with the old driver was +0.621 ppm/count (IHWP=IN)- see third linked entry. The factor of two is due to the fact that the new driver uses 10 VDAC while the old driver uses 5 VDAC.

suleiman

SLinac U-Tubes Complete

7 hours 17 minutes ago
Log Number: 4469493Logbook(s): Entry Makers: johnwBody: 

U-Tubes are complete for 2L24 and 2L26. Both modules have been released to SRF for cooldown; 2L26 was released around 20mins ago with 2L24 planned to start about an hour after 26. We encountered no issues with U-Tube installation.

cryo

SC2 Pumpdown Complete

8 hours 21 minutes ago
Log Number: 4469479Logbook(s): Entry Makers: wisslerthilanBody: 

Pumpdown of SC2 complete. NLinac is at 0.0392 atm, 185 g/s.

A rise in return temperature was seen towards the latter part of the pumpdown, but the program was able to handle it and finish the pumpdown.

cryo

TMG Check script failing due to deselected laser

8 hours 30 minutes ago
Log Number: 4469478Logbook(s): Entry Makers: deirBody: 

Hall C laser is currently deselected in Boom Buddy and it seems the TMG check script is failing because it can not turn on that laser.

Fig 2: Shows a some of the PV's that boom buddy uses that the script writer could implement in the script to determine which lasers are in use.

deir

Gun HV forced OFF by PSS

8 hours 39 minutes ago
Log Number: 4469477Logbook(s): Entry Makers: chgarciaBody: 

At 7:37 this morning, both PSS A and B lost permit, forcing the gun HV OFF. VWien was off at the time, HWien HV was at +/- 2kV with magnet BDL at 43 G-cm. (Figure 3).

chgarcia

Shift Information

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CEBAF Program
MCC Crew Chief Richardson
MCC Operators Anthony
Program Deputy Mock
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