Recent Log Entries

CREW CHIEF SIGN IN

Log Number: 3657955Logbook(s): Body: 
THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY
ACCELERATOR OPERATIONS CREW CHIEF SIGN IN FORM

Date : 02-22-19
Time : 23:19:45
Day : Friday
Shift : Owl

Crew Chief : Merz
Program Deputy: Benesch
Team : D
Arm : Anthony
Designated SSO: Cade
LERF Operator:
Operators : Anthony, Cade

This stamp certifies that the above Crew Chief has read/reviewed/received the following:

FSD Masking Tool: Successful System Masking for: BeamLossMonitor

Log Number: 3657914Logbook(s): Tags: Body: System Masking for: BeamLossMonitor
User: staphany
Areas: All

BeamLossMonitor Devices:
ILM1L02
ILM0I07
ILM6R08
ILM0L01A
ILM0L01B
ILM0L02
ILM2D00A
ILM2D00B
ILM0L04A
ILM0L04B
ILM0R04
ILM0L05
ILM0L06A
ILM0L08
ILM0R01
ILM4D00
ILM0R03
ILM0R06
ILM0R08
ILM0R09
ILM3S00
ILM7S00
ILM9S00
ILM5S10
ILM5E03
ILM7S01
ILM9A01
ILM3E02
ILM5A01
ILM1A04
ILM1A06
ILM3R10
ILM9R07
ILM1R09
ILM2L03
ILM5R10
ILM5R05
ILM2L01
ILM2T09
ILM8T09
ILM4C01
ILM4C02
ILM4C03
ILM1C01
ILM1C

Hall A septum and corrector settings changed

Log Number: 3657891Logbook(s): Entry Makers: eformanBody: 

The Hall A septum correctors have been adjusted to 30 amps upstream and 10 amps downstream for a septum setting of -1045.

The centering marker on the dump viewer screen has been restored (it seems to have disappeared at some point).

FSD Masking Tool: Successful System Masking for: BeamLossMonitor

Log Number: 3657864Logbook(s): Tags: Body: System Masking for: BeamLossMonitor
User: staphany
Areas: All

BeamLossMonitor Devices:
ILM1L02
ILM0I07
ILM6R08
ILM0L01A
ILM0L01B
ILM0L02
ILM2D00A
ILM2D00B
ILM0L04A
ILM0L04B
ILM0R04
ILM0L05
ILM0L06A
ILM0L08
ILM0R01
ILM4D00
ILM0R03
ILM0R06
ILM0R08
ILM0R09
ILM3S00
ILM7S00
ILM9S00
ILM5S10
ILM5E03
ILM7S01
ILM9A01
ILM3E02
ILM5A01
ILM1A04
ILM1A06
ILM3R10
ILM9R07
ILM1R09
ILM2L03
ILM5R10
ILM5R05
ILM2L01
ILM2T09
ILM8T09
ILM4C01
ILM4C02
ILM4C03
ILM1C01
ILM1C

Derated 2L13-7 = fewer 4S00 trips

Log Number: 3657814Logbook(s): Entry Makers: eformanBody: 

On the advice of Tom Powers, 2L13-7 was derated due to GMES instability. Removed 0.5 MV/m and distributed to other cavities in the zone. Noted fewer 4S00 BLM trips afterward and less GMES instability.

Twiddle Diffs - Magnet changes to improve A2 interception

Log Number: 3657788Logbook(s): Body: /cs/jtabs/edm/twiddle/trimscreen/5887098926550166346/2019-02-22_15.55.07-rebeccaj: Twiddle Diffs - Magnet changes to improve A2 interception
Differences between values from Twiddle Save
, ,
and present readbacks:

Injector steering to address A2 interception

Log Number: 3657785Logbook(s): Entry Makers: hoflerrebeccajfreemanBody: 

Using the relative orbit from the injector allsave (19734), we made minor steering changes in the 0I region to restore the orbit and bring down interception on A2.

Fig. 1 Settings differences after steering (left) and before. 0L corrector and R04 GSET differences are orbit and energy lock changes.

allsave 19776 (saved with relative orbit from 19734)

Operator SIGN IN

Log Number: 3657782Logbook(s): Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Forman
DATE:             02/22/2019
SHIFT:               Swing

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

Pages