From adev@jlab.org Mon Jun 29 09:59:28 1998 Date: Mon, 29 Jun 1998 08:55:32 -0400 From: Robert Michaels Subject: Hall A Beamtime Accounting Hall A Shift Summary 6/27/98 1600-2400 Experiment #: E93-027 Shift Leader: Fleck Shift Workers: Prout, Raue, Gerstner, Kramer, Punjabi ==========================================================================| | Start hour of shift | | ------------------------------------------------|Total | 1600 1700 1800 1900 2000 2100 2200 2300 |Time | ==========================================================================| Beam available | | | | | | | | | | and acceptable | 1.00| 1.00| 1.00| 1.00| 1.00| 1.00| 1.00| 1.00| 8.00 | -------------------------------------------------------------------|------| Beam available | | | | | | | | | | but not requested | 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00 | -------------------------------------------------------------------|------| Beam not | | | | | | | | | | available | 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00 | ==========================================================================| Experiment | | | | | | | | | | ready | 1.00| 1.00| 1.00| 1.00| 1.00| 1.00| 1.00| 0.25| 7.25 | -------------------------------------------------------------------|------| Configuration | | | | | | | | | | change | 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00 | -------------------------------------------------------------------|------| Experiment | | | | | | | | | | not ready | 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.75| 0.75 | ==========================================================================| Data | | | | | | | | | | Taking | 1.00| 1.00| 1.00| 1.00| 1.00| 1.00| 1.00| 0.25| 7.25 | ==========================================================================| ==========================================================================| Not Ready: | | | | | | | | | | Target | 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00 | -------------------------------------------------------------------|------| Not Ready: | | | | | | | | | | HRSe | 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.75| 0.75 | -------------------------------------------------------------------|------| Not Ready: | | | | | | | | | | HRSh | 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00 | -------------------------------------------------------------------|------| Not Ready: | | | | | | | | | | Data Acq | 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00 | -------------------------------------------------------------------|------| Not Ready: | | | | | | | | | | Other | 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00 | ==========================================================================| Comments: Smooth running until 21:00. Moller measurements 21:00 to 23:00. Discovered that Hall C laser at source affects our polarization at low current (few microAmps). Appears to have little or no affect at high current (100 microAmps). Noticed VDC high voltage trip at 23:00. Asked for access to diagnose. Appears that a wire is broken. Data Entry by: S. Churchwell