Recent Log Entries

MDR1I02 Observations

Log Number: 4126188Logbook(s): Body: 

Was asked to look into MDR1I02 for anything suspicious. Plotted the current and voltage readbacks, nothing notable was observed. The readings are pretty solid over the last couple of weeks. Noise counts are also well below alarm limits. No reason to suspect anything wrong here from a DC Power point of view.

Injector Transmission/interception optimization

Log Number: 4126187Logbook(s): Entry Makers: hoflerywangBody: 

We minimized interception on A2 using A beam with the prescribed correctors (MHD0I01AH/V). A1 interception was acceptable, so we did not touch the correctors designated for minimizing interception on A1 (MBH0I01H/V).

Fig. 1 is 45 uA CW for A to the ILD
Fig. 2 is 40 uA CW for C to the ILD
Fig. 3 is A and C combine to the ILD

Orbits for all for beams (Figs. 4-7). Reference orbit is A beam (Fig. 4). The relative orbits for B (Fig. 5), C (Fig. 6), and D(Fig. 7) are relative to A's orbit.

allsave 23901

Autolog save

Log Number: 4126186Logbook(s): Tags: Body: saver ran from opsl02

Saved: hofler 02-07-23 11:46:24 {A:4 B:5 C:5 E:1047 A=BS B=BS C=BS D=BS 0R08=0.00 0R08 dump in.

2L15 Dropped HV

Log Number: 4126182Logbook(s): Entry Makers: bschaumlBody: 

Came back up on the second Soft HV On attempt.

Downtime Incident CREATED: Machine Troubleshooting

Log Number: 4126181Logbook(s): Body: IDDescriptionPeriodCause11550Title:
Machine Troubleshooting

Experts convened in an 0900 meeting and are now checking the machine.Duration:
1 hour 17 minutes

Time Down:
07-Feb-2023 10:18

Autolog restore

Log Number: 4126175Logbook(s): Tags: Body: saver ran from opsl02
Data from: /usr/opdata/burt/allsnap/02-06-23_18:53:27
Restored file: /tmp/02-07-23_11:17:38.snap

Injector beam collinearity check: A and C are collinear

Log Number: 4126170Logbook(s): Entry Makers: hoflerywangBody: 

Orbit and energy locks are OFF

Zero pos with A beam
Fig. 1 is A's orbit
Fig. 2 is C's orbit relative to A
Fig. 3 is C's orbit

A and C are collinear. The differences between the A and C orbits are sub-0.3 mm in the horizontal plane and sub-0.6 mm in the vertical plane. These differences are not significant.