-By 4pm yesterday everything worked again
-Around 7pm power in Dtunnel failed. dtun1 was rebooted (+cycling of holding
field). But ABS magnets were not turned on, neither the alarm handler.
-When Nik came in close to midnight, he noticed that the static and gradient
field magnets (ABS MFT/SFT) were off (broken outlet on rack in
Dtunnel). The alarmhandler had not been run up after yesterday's problems,
therefore it was not recognized immediately. Thus data between 4pm and
midnight are questionable (runs 7860-7874).
-Around 10pm /scratch/dblast07 was full. Tavi did not find the appropriate
script to do checksums before he removed runs. Judged from filesizes only.???
-11:15pm Access to add/replace some water
-The waterleak was fixed between 9am-1pm
-From 4pm-7pm and 3am-8.30am good running with polarized deuterium.
-From 7pm-3am ABS was unpolarized.
-Sudden beam drops did occur again but are still not understood (some
suspicions though)
-Beam on again since 1pm
-Short access at 2.30pm to replace gas bottles
-Plan for the weekend:
Continue running polarized Deuterium until Monday noon.
Then switch to empty target running and continue running until Tuesday 7am.
On Tuesday, hall will be open during snakes refilling for maintenance.
-Shifts crew:
Fri 17-1 akdogan
Sat 1-9 zhangchi
Sat 9-17 tavi
Sat 17-1 shariton
Sun 1-9 zhangchi
Sun 9-17 baris
Sun 17-1 adrian
Mon 1-9 zangchi
Mon 9-17 baris
Mon 17-1 adrian
Tue 1-9 tavi
Regards,
Michael
--+-------------------------------------+--------------------------+ | Office: | Home: | |-------------------------------------|--------------------------| | Dr. Michael Kohl | Michael Kohl | | Laboratory for Nuclear Science | 5 Ibbetson Street | | MIT-Bates Linear Accelerator Center | Somerville, MA 02143 | | Middleton, MA 01949 | U.S.A. | | U.S.A. | | | - - - - - - - - - - - - | - - - - - - - - -| | Email: kohlm@mit.edu | K.Michael.Kohl@gmx.de | | Work: +1-617-253-9207 | Home: +1-617-629-3147 | | Fax: +1-617-253-9599 | Mobile: +1-978-580-4190 | | http://blast.lns.mit.edu | | +-------------------------------------+--------------------------+
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