Log entry time 00:02:57 on May13,2004

Entry number 121541

keyword=May 12 swing shift summary

16:00 shift start with controlled access;
17:00 hall is in beam permit;
18:10 beam back, start from 5 uA. Trying to figure out how to start the dump viewer;
18:30 MCC asked to move the target to empty position for some tests,
but the target IOC seems to be frozen, reboot target IOC;
18:36 target in empty position; MCC is tuning the beam and trying to calibrate the beam dump viewer; For dump viewer calibration, see ELOG #1211800

17:53 MSS is almost ready to send high current, move the target to Be thick (as labelled, the actual target is Be thin)

20:16 we've got 120uA! Energy spread high (3.5E-5);
20:20 start production runs;
21:00 energy spread below 3.0E-5 now;
23:00 MCC started QE test, beam down for about 8 minutes;

run summary:

run# start stop #event comment

3482 20:15 20:38 1M     energy spread \approx (3.5-3.6)E-5

3483 20:39 21:10 1M     energy spread drops from 3.5E-5 to 3.0E-5

3484 21:11 21:40 1M

3485 21:41 22:10 1M

3486 22:11 22:27 72K    lost beam at the middle of run

3487 22:44 23:18 1M

3488 23:22 23:49 1M

3489 23:52

User name X. Zheng

Log entry time 00:02:57 on May13,2004

Entry number 121541