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iocnl26rfhtr restored

2 days 7 hours ago
Log Number: 4544379Logbook(s): Tags: Body: restorelib 3.0.1 Target restore date was 2026-08-23 12:07:12 The output from the myRestore execution was as follows: iocnl26rfhtr <NOTE> Rf12Htr_2525: Provided macro *IOC* is never used Pause: 15 second(s) Rf12Htr_2525 Execute: caput R1QXHHTRMOD 0 (success) Old : R1QXHHTRMOD 0 New : R1QXHHTRMOD 0 Pause: 12 second(s) Execute: caput R1QXHTSWI 1 (success) Old : R1QXHTSWI OFF New : R1QXHTSWI MAN Pause: 3 second(s) Rf12Cryo_heatset@2026-08-23
alarms

Operator SIGN IN

2 days 11 hours ago
Log Number: 4544378Logbook(s): Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Shenenberger
DATE:             08/23/2026
SHIFT:               Day

The operator has read the following:
alexs

VIPAA0n vacuum spike

2 days 15 hours ago
Log Number: 4544375Logbook(s): Entry Makers: msmithBody: 

Arc A ion pumps briefly railed around VIPAA04 and VIPAA05. Came back down on its own. VIPAA05 is still elevated but slowly recovering. Seems like this happens on occasion. It was previously OpsPr'd then closed. The instruction in the comment says to re-open if necessary.

msmith

Operator SIGN IN

2 days 19 hours ago
Log Number: 4544369Logbook(s): Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Smith
DATE:             08/22/2026
SHIFT:               Owl

The operator has read the following:
  • ELOG
  • PD Shift Plan
  • Radiation Surveys for PSS Segments in Controlled Access
  • PSS Log
msmith

COMMENT ON Gun2 photocathode Heat and Activation - August 2026

3 days ago
Log Number: 4544368Logbook(s): Body: 

The SLSP-5247-4 GaAs photocathode mounted on puck #3 has been activated with 8 yo-yo's (full-area). The puck has been inserted in the gun with the ear at about 15 degrees CCW from the vertical direction (same angle as before). At the long manipulator, this corresponds to 25 degrees.

The HV bias was set to "5" on the battery box. The picoammeter was set 200 nA Full Scale then 2 uA after during the first Cs peak.

The Cs was heated with 4.6 A (0.98 V) and vacuum went to 8 nA. The first QE Cs peak started to show up after 8 minutes.

suleiman

Operator SIGN IN

3 days 3 hours ago
Log Number: 4544360Logbook(s): Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Anthony
DATE:             08/22/2026
SHIFT:               Swing

The operator has read the following:
  • ELOG
  • PD Shift Plan
  • Radiation Surveys for PSS Segments in Controlled Access
  • PSS Log
anthony

The following cavities have been UnGSET 0: 2L12-6

3 days 6 hours ago
Log Number: 4544356Logbook(s): Tags: Body: 

The following cavities have been UnGSET 0:
2L12-6
Username: xgomez
Date/Time: 08-22-26_13:30:50
RF Status: Good
Tuner Status: Good
Comment: UnGSET 0 - stepped on -100k - Klystron (done with Miram curve returning cavity to initial state)
Special Instructions:

Maintenance Tag: Component: Operator Entry - See SME

xgomez

The following cavities have been UnGSET 0: 2L11-2

3 days 6 hours ago
Log Number: 4544355Logbook(s): Tags: Body: 

The following cavities have been UnGSET 0:
2L11-2
Username: xgomez
Date/Time: 08-22-26_13:29:20
RF Status: Good
Tuner Status: Good
Comment: UnGSET 0 - stepped on -100k - Klystron Klystron (done with Miram curve returning cavity to initial state)
Special Instructions:

Maintenance Tag: Component: Operator Entry - See SME

xgomez

The following cavities have been UnGSET 0: 2L10-5

3 days 6 hours ago
Log Number: 4544354Logbook(s): Tags: Body: 

The following cavities have been UnGSET 0:
2L10-5
Username: xgomez
Date/Time: 08-22-26_13:26:21
RF Status: Good
Tuner Status: Good
Comment: UnGSET 0 - stepped on -100k - Klystron (done with Miram curve returning cavity to initial state)
Special Instructions:

Maintenance Tag: Component: Operator Entry - See SME

xgomez

COMMENT ON Gun2 photocathode Heat and Activation - August 2026

3 days 9 hours ago
Log Number: 4544348Logbook(s): Body: 

Moved Prep Chamber ion pump to a local gamma supply.

Heated puck # 3 in oven. The initial temp is 23.4 C and vacuum is 3.6 nA. Soaked between 350 and 363 C for 15 minutes. Heater at 6.0 Amp and 2.42 V. Vacuum went to 6.2 nA. When stopped soaking, degassed Cs source at 4.7 A for 10 seconds; vacuum went from to 4.0 nA to 10 nA.

suleiman

Heated Puck #3

3 days 9 hours ago
Log Number: 4544347Logbook(s): Entry Makers: suleimanBody: 

Moved Prep Chamber ion pump to a local gamma supply.

Heated puck # 3 in oven. The initial temp is 23.4 C and vacuum is 3.6 nA. Soaked between 350 and 363 C for 15 minutes. Heater at 6.0 Amp and 2.42 V. Vacuum went to 6.2 nA. When stopped soaking, degassed Cs source at 4.7 A for 10 seconds; vacuum went from to 4.0 nA to 10 nA.

suleiman

Shift Information

Shift Day
CEBAF Program
MCC Crew Chief Howard
MCC Operators Barker, Price, Anthony, Smith
Program Deputy Park
Announcements

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Recent PSS History

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