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User name weinstein
Log entry time 16:15:42 on Oktober27,2000
Entry number 51077
keyword=shift summary
8:00 running ep energy measurement
9:10 request controlled access to move HRS_L to 13 degrees
10:00 ask for beam
10:15 get beam
10:15 start run 2090
10:31 change to dummy
10:35 request beam
10:51 change to 15cm LH2
10:57 request beam
11:30 coda problems - brief intervals of 100% dead times during runs 2097 and 2098.
11:40 switch to ARC measurement, put in 12C multifoil, ramp down magnets
12:15 daq problems were due to a switch setting. Fixed by ROM (see halog)
12:40 arc done
13:00 polarity switching starts, spectrometers being moved
14:00 start ramping Right dipole
14:10 polarity changed, all magnets ramping
14:30 get beam just in case we need it someday
15:00 perform "Harp Bullseye" Scan
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Left Arm: e-, 12.973 degrees, 2.242 MeV/c
Right Arm: p+, 67.983 degrees, 0.5441 MeV/c
Time Run tgt #events comment
10:15 2090 12C 1.2M pointing
10:25 2091 0.6M
10:39 2092 15cm dummy 0.9M 10uA
10:45 2093 0.13M 30uA
10:59 2094 15cm LH2 0.4M 10uA
11:04 2095 1.2M 10uA changed ps factors
11:18 2096 0.3M 10uA
11:27 2097 sieve
coda problem at end
11:30 2098 0.3M 10uA sieve
Polarity is switched
Left Arm: p+, 57.3 degrees,
Right Arm: p+, 20.5 degrees,
15:30 2103-2108 Harp "Bullseye" scan, beam moved around on
grid of +- 1 mm in both dimensions, see HALOG 51071
Magnets ready at end of shift