Shift Crew: John Annand and Ramesh Subedi
Left HRS (electron) p0 = 3.7620 GeV/c Angle = 19.5°
Right HRS (proton) p0 = 1.4500 GeV/c Angle = 40.1°
BigBite Magnet Current = 518 A Angle = 99.0°
BigBite Gaussmeter = 0.9325 T
All production runs with tilted carbon at 10 µA un-rastered current.
Shift Summary
- 00:00 Started shift with "Moller Crew" doing Moller measurement
- 01:25 Moller measurement finished (see halog entry 140178 by Eugene)
- 01:25 Asked MCC for 2 µA beam.They had problem with one of their Quads, could not send beam for us.
- 01:42 Beam back, started spot check for various targets at 2 µA current with no rastor (except for dummy target)
- 01:54 - 02:06 Checked beam spot with epmpty target (see halog entry 140182 ).
- 02:07 - 02:18 Target changed to LD2-15cm
- 02:19 Checked beam spot with LD2 15cm target (see halog entry 140186 ) .
- 02:23 - 02:26 Target changed to LH2-15cm
- 02:27 Checked beam spot with LH2 15cm target (see halog entry 140189 ).
- 02:33 - 02:37 Target changed to Dummy
- 02:37 Spot check at Dummy target with 0.75x0.75 raster at 2 µA beam. MCC told COO does not allow un-rastered beam delivery on Dummy target (see halog entry 140192 ).
- 02:39 - 02:42 Target changed to slanted carbon
- 02:43 Requested for 10 µA beam with no raster.
- 02:49 - 03:44 Run 2129, fFirst production run of this shift.
- 03:44 - 04:09 Run 2130, stopped early due to beam stop call from MCC due to RF problem.
- 04:23 MCC called they are ready to give us beam.
- 04:26 Beam back
- 04:26 - 05:19 Run 2131
- 05:19 - 06:16 Run 2132
- 06:16 - 06:46 Run 2133, stopped early due to beam stop call from MCC due to RF problem.
- 06:55 MCC called they are going to give us beam.
- 07:00 Beam back.
- 07:00 - 07:08 Run 2134, stopped early due to beam-stop call from MCC due to RF-cavity problem again.
- 07:11 MCC called they are going to give us beam.
- 07:13 Beam back
- 07:13 - Run 2135 passed to Day shift.
Run Summary
01:54 Run 2124 -
Spot check run on empty target
02:07 Run 2125 -
Spot check run on empty target again.
02:19 Run 2126 -
Spot check run on LD2 target .
02:27 Run 2127 -
Spot check run on LH2 target.
02:37 Run 2128 -
Spot check run on Dummy target
Production runs on tilted carbon target:
01:54 Run 2129 -
Production run ( 200k).
01:54 Run 2130 -
Production run ( 61.9k).
01:54 Run 2131 -
Production run ( 200k).
01:54 Run 2132 -
Production run ( 200k).
01:54 Run 2133 -
Production run ( 100k).
01:54 Run 2134 -
Junk ( 9k).
01:54 Run 2135 -
Passed to Day shift.
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