Spreadsheet: 1e1493d9-b98e-4463-9e3c-312c5cb0258b
Sheet: Sheet1

 |  |  | Noteable times
Week | Date | Shift | Start | End | Studies activities | [NAME] rate | [NAME] bunches | Notes, possible analysis studies to perform
35 | 24 | m
 | 24 | a
 | 24 | n
 | 25 | m
 | 25 | a
 | 25 | n
 | 26 | m
 | 26 | a
 | 26 | n
 | 27 | m
 | 27 | a
 | 27 | n |  |  | • Gradient studies ([NAME], Toshi) | No Beam
 | 28 | m
 | 28 | a
 | 28 | n |  |  | • RF power distribution studies ([NAME], Julien) | No beam
 | 29 | m
 | 29 | a
 | 29 | n
 | 30 | m
 | 30 | a
 | 30 | n
36 | 31 | m
 | 31 | a
 | 31 | n
 | 1 | m
 | 1 | a
 | 1 | n
 | 2 | m
 | 2 | a
 | 2 | n
 | 3 | m
 | 3 | a
 | 3 | n
 | 4 | m
 | 4 | a
 | 4 | n
 | 5 | m
 | 5 | a
 | 5 | n
 | 6 | m
 | 6 | a
 | 6 | n
37 | 7 | m
 | 7 | a
 | 7 | n
 | 8 | m
 | 8 | a
 | 8 | n
 | 9 | m
 | 9 | a
 | 9 | n
 | 10 | m
 | 10 | a
 | 10 | n
 | 11 | m
 | 11 | a
 | 11 | n
 | 12 | m
 | 12 | a |  |  |  | 40kHz | 30
 | 12 | n
 | 13 | m
 | 13 | a | - - 13:15 13:44 | - - 15:45 - | • First time in long-pulse mode • BLM integration alarm thresholds increased • Stable operation with 80 bunches at 100kHz • Peak-to-peak energy deviations during bunch train of ~0.3MeV | 100kHz | 80 | • Candidate for energy jitter analysis @ 0.3mA
 | 13 | n |  |  | • 158 bunches @ 200kHz through the machine • It was noted the machine was running unstably and that the energy profile was not flat enough (the profile in the logbook had p-p deviation of 2MeV!) | 200kHz | 158 | • Candidate for energy jitter analysis @ 0.6mA - maybe
38 | 14 | m
 | 14 | a
 | 14 | n
 | 15 | m |  |  |  | 500kHz
 | 15 | a |  |  |  | 500kHz
 | 15 | n |  |  |  | 500kHz
 | 16 | m |  |  |  | 500kHz
 | 16 | a | 19:05:00 | 19:25:00 | • Ran 320 bunches at 500kHz | 500kHz |  | • Candidiate for energy jitter analysis @ 1.5mA
 | 16 | n |  |  | • Started operation at 1MHz | 1MHz
 | 17 | m | 08:44 12:45 | 09:44 13:11 | • Operation with 600 bunches @ 1MHz (First time above 550!) • Scans of beam energy jitter vs LLRF gain for ACC23 and ACC456 | 1MHz | 600 | • Energy jitter vs gain @ 3mA
 | 17 | a |  |  |  | 1MHz
 | 17 | n | 03:30 04:00 04:02 | 04:00 - - | • Attempting to get to 800 bunches, but lot's of blm alarms, especially with >600 bunches • Laser timing was adjusted to fix problem of charge droop after 600 bunches • First time running with 800 bunches at 1MHz, 3nC/bunch, but lot's of blm alarms | 1MHz | 800 | [NAME] has started a stability analysis around the 03:00 to 05:00
 | 18 | m |  |  |  | 1MHz | 800
 | 18 | a | 08:15 20:55 | 08:55 - | • Rapid startup of machine from tunnel closure to 800 bunches • Beginning of long period of stable operation with 800 bunches at 1MHz | 1MHz | 800
 | 18 | n |  | 07:00:00 | • Stable operation with 800 bunches at 1MHz throughout the shift (ended at shift change when beam was turned off to commission the 3MHz laser) | 1MHz | 800 | [NAME] long-term energy stability @ 3mA • Analyze energy jitter @ 3mA
 | 19 | m |  |  | • Commissioned Laser #2 to allow 3MHz bunch rep rate | -- | --
 | 19 | a |  |  | • First time running with 3MHz bunch trains @ 3nC/bunch = 9mA!! | 3MHz | 480
 | 19 | n |  |  |  | 3MHz | 1600
 | 20 | m |  |  |  | 3MHz
 | 20 | a |  |  |  | 3MHz |  | • Analyze energy jitter @ 9mA
 | 20 | n | 01:00 02:37 02:49 | 01:45 02:52 02:52 | ~1000 bunches @ 3MHz, stable operation >2000 bunches @ 3MHz Almost 2400 bunches @ 3MHz | 3MHz | ~2390
39 | 21 | m |  |  | Start of FLASH shutdown