 Sun May 15 13:07:12 2011, JB, , , W detector V-I curve 
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York W detector 2635-19
1037um |
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Mon May 16 21:14:19 2011, Jamie Brown, , , Broken solder on PD2
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| As you can see... |
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Tue May 17 12:32:13 2011, Jamie Brown, , , Thick carbon target
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The thick carbon target, to be used for background runs for the thick CH2 measurement was supplied by Marek.
He measured it to be 120um thick (with a micrometer), and says it's low density carbon (1.03g/cm3).
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Wed May 18 08:54:08 2011, Alex Murphy, , , Photodiode data from target thickness measurements
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| In attachment are the peak position in the photodiodes (with high gain setting) for the target thickness measurements. |
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Wed May 18 08:58:53 2011, Alex Murphy, , , Foil energy losses
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I've analysed data from runs 4 to 12, which were the alpha irradiations
of PD1 and PD3 through the foils.
Time, 'target', which PD is being irradiated. |
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Wed May 18 09:09:02 2011, Alison Laird, , , Status update
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Wednesday morning:
4 new windows were tested last night. 2 very good.
Now venting to install and test Faraday cup, install and test camera. |
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Fri May 20 05:47:08 2011, Tom Davinson, , , 3.25MeV/u 21Ne(5+)
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Sat May 21 18:25:36 2011, Jamie Brown, , , Beam spot
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Sun May 22 11:45:03 2011, Tom Davinson, , , 4.11MeV/u 21Ne(5+)
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Mon May 23 02:12:14 2011, Brian, Routine, , Start of Run summary
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Handover from last shift was...
1. Running at 4.11 MeV/u at about 15enA (5+)
2. Would like to take more beam but already at situation where deadtime about 50%. They have been raising thresholds on the inner strips |
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Mon May 23 02:16:32 2011, Jamie Brown, , , End of run summary
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Plan for shift was to increase trigger thresholds on S2-1 and S2-2 to cut out the low energy "stuff" which is dominating our trigger rate,
and preventing us from increasing the beam current. S2-1 thresholds were at 10mV and S2-2 at 25 and 30mV.
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Tue May 24 00:01:03 2011, Oliver and Hicham, Routine, , end of shift summary
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Things have been running smoothly from 4 pm to midnight.
Reading in FC0 = 120-130 epA
Total trigger (accepted trigger) = 7500 (4000) Hz |
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Tue May 24 01:47:17 2011, Anonymous, , , Shift schedule, as of 1am Tuesday 24th
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Wed May 25 22:45:42 2011, Jamie Brown, , , Leakage current in S2-1
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At approximately 7pm, noted that trigger rate in S2-1 had dropped by factor of ~20. Detector had tripped off due to leakage current reaching 8uA - spotting
this was delayed as camera (or web-browser) monitoring currents had frozen. Current trip point has been increased to 12uA, and the beam intensity lowered
to try to preserve the detector through out the night. |
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Thu May 26 00:15:18 2011, Hicham and Sarah, Routine, , End of run summary
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still running at 3.98 MeV/u
19:08
S2-1 had tripped off due to leakge current going above 8uA |
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Thu May 26 12:53:48 2011, Jamie Brown, , , H2 fill and vent procedures
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Please note that these procedures are not perfect and other small operations not listed may need to be carried out. Some mistakes may still exist in
these procedures which could introduce significant risk if not spotted and corrected during the process. These should only be carried out by people confident
they understand the system and the purpose of each step, giving due consideration to each step to ensure it is appropriate and safe. |
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Fri May 27 14:24:00 2011, Tom Davinson, , , S1287 data transfer
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S1287 data files R1_*.gz to R100_*.gz transferred from directory
tuda2:/data2/data/S1287 to directory tuda3:/data3/data/S1287
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Sat May 28 10:07:44 2011, Jamie Brown, and Mike Bentley, , , Plan for last day
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1) PD run with gas (250Torr) - done
2) Pump down to 50 Torr - done
3) PD run - done |
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Mon Jun 20 05:58:21 2011, Jamie Brown, , , Run log
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| Attached is a spreadsheet summarizing all the run information from the experiment. |
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Tue Jun 21 02:58:31 2011, Jamie Brown, , , Run Books 13 and 14
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| Attached. Book 13 is split into 4 sections as otherwise the file is too big for the elog to accept. |