Aggregator

Log Number: 4495428Logbook(s): 

• FMLOG
• DCLOG
• ELOG

Body: 

Looks like temps may have stopped regulating well around May 1st for some reason.

Log Number: 4495424Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 16861Title:
Wednesday Owl Harp Swipes

Summary:
1E01 and then [2468A]E01Duration:
32 minutes

Time Down:
06-May-2026 06:07

Time Up:
06-May-2026 06:39

Log Number: 4495423Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System UN-Masking for: BeamLossMonitor
User: samari
Areas: All

BeamLossMonitor Devices:
ILM0I07
ILM0L01A
ILM0L01B
ILM0L02
ILM2D00A
ILM2D00B
ILM0L04A
ILM0L04B
ILM0L05
ILM0L06A
ILM0L08
ILM0R01
ILM4D00
ILM0R03
ILM0R04
ILM0R06
ILM0R08
ILM0R09
ILM1L01
ILM1L02
ILM6R08
ILM3S00
ILM7S00
ILM9S00
ILM5S10
ILM5E03
ILM7S01
ILM9A01
ILM3E02
ILM5A01
ILM1A04
ILM1A06
ILM1A09
ILM5A10
ILM1A16
ILM1A19
ILM3R10
ILM9R07
ILM1R09
ILM2L03
ILM5R10
ILM5R05
ILM2L01
ILM2T09
ILM8

Log Number: 4495422Logbook(s): 

• POLOG
• ELOG

Body: 

The laser doubling efficiencies are currently too low (see linked entries). The bleed-through issues observed in the halls are likely tied to the performance of the laser system. In particular, the level of DC light present between the CW pulses is directly related to the second-harmonic generator (SHG) doubling efficiency.

Improving SHG performance is therefore essential: increasing the conversion efficiency will reduce the residual DC light between pulses and, in turn, mitigate the resulting electron beam bleed-through.

Log Number: 4495421Logbook(s): 

• ELOG
• BTLOG

Body: 

Laser Used:

D Laser

Sigmas:

Peak 1 - x Sigma: 0.3432 Peak 2 - u Sigma: 0.5021 Peak 3 - y Sigma: 0.4452

Log Number: 4495420Logbook(s): 

• ELOG
• BTLOG

Body: 

Laser Used:

D Laser

Sigmas:

Peak 1 - x Sigma: 0.1386 Peak 2 - u Sigma: 0.3974 Peak 3 - y Sigma: 0.4115

Log Number: 4495419Logbook(s): 

• ELOG
• BTLOG

Body: 

Laser Used:

D Laser

Sigmas:

Peak 1 - x Sigma: 0.3440 Peak 2 - u Sigma: 0.2785 Peak 3 - y Sigma: 0.3434

Log Number: 4495418Logbook(s): 

• ELOG
• BTLOG

Body: 

Laser Used:

D Laser

Sigmas:

Peak 1 - x Sigma: 0.1953 Peak 2 - u Sigma: 0.1479 Peak 3 - y Sigma: 0.2168

Log Number: 4495417Logbook(s): 

• ELOG
• BTLOG

Body: 

Laser Used:

D Laser

Sigmas:

Peak 1 - x Sigma: 0.3017 Peak 2 - u Sigma: 0.6719 Peak 3 - y Sigma: 0.7013

Log Number: 4495416Logbook(s): 

• ELOG
• BTLOG

Body: 

Laser Used:

D Laser

Sigmas:

Peak 1 - x Sigma: 0.0994 Peak 2 - u Sigma: 0.1810 Peak 3 - y Sigma: 0.2114

Log Number: 4495414Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System Masking for: BeamLossMonitor
User: samari
Areas: All

BeamLossMonitor Devices:
ILM0I07
ILM0L01A
ILM0L01B
ILM0L02
ILM2D00A
ILM2D00B
ILM0L04A
ILM0L04B
ILM0L05
ILM0L06A
ILM0L08
ILM0R01
ILM4D00
ILM0R03
ILM0R04
ILM0R06
ILM0R08
ILM0R09
ILM1L01
ILM1L02
ILM6R08
ILM3S00
ILM7S00
ILM9S00
ILM5S10
ILM5E03
ILM7S01
ILM9A01
ILM3E02
ILM5A01
ILM1A04
ILM1A06
ILM1A09
ILM5A10
ILM1A16
ILM1A19
ILM3R10
ILM9R07
ILM1R09
ILM2L03
ILM5R10
ILM5R05
ILM2L01
ILM2T09
ILM8T09

Log Number: 4495413Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System UN-Masking for: CryoModule
User: samari
Areas: NorthLinac SouthLinac

CryoModule Devices:
1L14
1L03
1L02
1L04
1L05
1L07
1L06
1L08
1L09
1L10
1L11
1L12
1L15
1L13
1L16
1L19
1L17
1L18
1L20
1L21
1L22
1L23
1L24
1L25
1L26
2L14
2L03
2L02
2L04
2L05
2L07
2L06
2L08
2L11
2L09
2L10
2L12
2L15
2L13
2L16
2L19
2L17
2L18
2L20
2L21
2L22
2L23
2L24
2L25
2L26

Log Number: 4495412Logbook(s): 

• POLOG
• ELOG

Body: Spot Location: (13250,19250), Charge: 25.292102999999994

Laser Wavelength Atten Setting Laser Power Current HV PS Current QE PV Updated? Update Time/Reason Not Updated (nm) (W) (uA)</

Log Number: 4495411Logbook(s): 

• ELOG

Entry Makers: samariBody: 

took setpoint and cycled

Log Number: 4495410Logbook(s): 

• HDLOG
• ELOG

Entry Makers: msmithBody: 

Will send back after the nightly QE measurement

Log Number: 4495406Logbook(s): 

• ELOG

Body: Calibration ParametersHall:DTarget: 1.1x10-3 Al 100umPass: 5.5Note: Calibrated On:2026-May-02 07:48Calibrated By: msmithFile:D-2026-05-02_0748_1.1x10-3_Al_100um_Pass-5.5.hcdIon ChamberExisting Setpoing (rads/hr)New Setpoint (rads/hr)East Wa

Log Number: 4495405Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System Masking for: CryoModule
User: samari
Areas: NorthLinac SouthLinac

CryoModule Devices:
1L14
1L03
1L02
1L04
1L05
1L07
1L06
1L08
1L09
1L10
1L11
1L12
1L15
1L13
1L16
1L19
1L17
1L18
1L20
1L21
1L22
1L23
1L24
1L25
1L26
2L14
2L03
2L02
2L04
2L05
2L07
2L06
2L08
2L11
2L09
2L10
2L12
2L15
2L13
2L16
2L19
2L17
2L18
2L20
2L21
2L22
2L23
2L24
2L25
2L26

Log Number: 4495404Logbook(s): 

• ELOG

Body: 

Electricians will link work planning docs.

Log Number: 4495402Logbook(s): 

• ELOG

Entry Makers: samariBody: 

sorry hall B.

Log Number: 4495399Logbook(s): 

• ELOG

Entry Makers: deirBody: 

Figs 1 & 2: 40 uA to xC (4th Pass) and 20 uA to xA (5th pass) but no significant bleedthrough measureable in Hall B (5th pass).

Here the fifth pass vertical separators are on, effectively kicking any bleedthrough that may come from the C laser and go through the A & D slit into Hall A.