------------------------------------------------------------ Date: Sun Jan 25 16:05:29 2004, Shift: 08:00-16:00 Supervisor: fv, with: Log book#15 pages 42 - 42 Shift Summary: ------------------------------------------------------------ Shift summary -- beam from 10:00 until 15:30 where dump was requested by 3/4. -> 5.5 hours -- BFS platfomr cannot be moved. Taked to Dana. We will request access tomorrow for repair. -- until then take data for 10 deg (B306) 1M and swith POL A306 (1M). Thus should last until tomorrow. -- Spend part of shift doing trigger studies; a few dedicated runs with single triggers. -- Trigger timing for FS was adjusted after 9857. ZDC width set to 4 nsec rather than 10 - implemented trigger 5 as prev setup by Dana i.e. ZDC vertex trigger ~ effecient from +-22 cm > 90%. special runs: 9857 trigger 6 only 81K 9858 trigger 6 only 54K 9859 trigger 2 only 58K 9860 trigger 6 only 59K (lower HV 1650 on trFS) 9861 trigger 4 only 124K (min bias to checkout effeciencies 10 deg B306; 40 deg A2255 9862 120K tr6; 114K tr 3 9863 75K tr6 ; 70K tr 3 9864 53K tr 6; 41K tr 3 9865 69k tr 6; 53 tr 3; Add trigger 5 9866 72K tr 6; 56k tr4; B306 == 370K so far; --problems BFS cannot move The beam monitor does not update fill no and fille time, while current+mom is ok. see also trigger logbook page 92/93 ------------------------------------------------------------ _______________________________________________ Brahms-l mailing list Brahms-l@lists.bnl.gov http://lists.bnl.gov/mailman/listinfo/brahms-lReceived on Sun Jan 25 16:06:18 2004
This archive was generated by hypermail 2.1.8 : Sun Jan 25 2004 - 16:06:33 EST