 Wed Feb 4 17:27:55 2015, Anonymous, , ,
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| This is reachable and change-able via outside Internet |
Fri Jan 11 06:56:01 2013, Jessica Tomlinson, Other, General, multiplicities, hit patterns and good hits in an event 
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I have attached a pdf of a series of slides with some multiplicity and hit pattern plots on, also a list of cuts. As well as this I looked at how many
'good hits' (explained in pdf) I am getting per event.
Before Christmas I found that the code was not clearing the raw arrays read in by MIDAS and so unless a new piece of data filled the array channel |
 Fri Jan 11 09:48:58 2013, Tom Davinson, Other, General, Re: multiplicities, hit patterns and good hits in an event
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Jessica
Tomlinson wrote:
I have attached |
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Tue Dec 4 05:40:10 2012, Jessica Tomlinson, Other, Other, analysis - single strip E vs t 6x
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I have attached some single strip energy vs time plots to show that the structure seen in the collective E vs t plots is in each strip.
Attachments 1 and 2 show two different strips in S2-2 with no cuts. You can see that the 3 loci are different to one another in the single strips
as well as in the combined S2-2 E vs t plot shown in attachment 3. Attachement 3 is plotted after applying the following cuts: equal energy in the front |
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Fri Nov 16 07:23:26 2012, Jessica Tomlinson, Other, General, S2-1 plot that would fit on previous elog
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Attachment 1 shows S2-1 energy vs time with a gate on energy in S2-2 being greater than 9MeV i.e. See previous elog also posted today for explanation.
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Fri Nov 16 07:12:32 2012, Jessica Tomlinson, Other, General, 4.11 MeV/u analysis 6x
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I have sorted the 4.11MeV/u data runs (the ones which had the common stop mode on the TDCs) and applied the following cuts:
There must be a hit registered in each side of the detectors.
equal energy must be deposited in both sides of the detectors.
Low energy cut is applied to each detector.
Must have a hit in the TDC for the front strips.
Must have multiplicity |
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Mon Sep 24 07:16:18 2012, Jessica Tomlinson, Other, Other, Analysis update
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Energy vs Time plots
I updated the monte carlo written by Alex to include time and also created new SRIM tables for 250 Torr rather than |
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Wed Jul 18 08:29:03 2012, Jessica Tomlinson, Other, General, Analysis update
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Energy calibration for S2-2 was done using the pulser data (set 6 of the pulser runs) to calculate the offsets and alpha run R186 to calculate
the gains and constant. For S2-1 pulser walkthrough 6 was also used to calculate the offsets and the gains calculated using run 31 which is 21Ne beam scattering
from Au/C target. The constants were then calculated by fitting a least squares fit to the alpha peaks from run 186 and the gold scattering peak from run |
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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. |
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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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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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Sat May 28 07:46:09 2011, Lars Martin, Routine, General,
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Beam current dropped to 85 epA at the start of the shift, operator checked for reasons and decided to change
stripper foil. That brought the current back up, but it started decreasing again, so from run to run slits were
gradually opened further to keep FC0 current at about 100 epA.
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Fri May 27 23:13:01 2011, Alex Rojas, Routine, General, Shift summary
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No major problems presented, A pluser walk was performed at the begining of the shift run161 S2-1 front, run162 S2-2 front, run163 S2-1 back and run165
S2-2 back.
Runs 166, 168, 169 are void due to bad scaler reading |
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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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Thu May 26 23:57:34 2011, Derek, Routine, General, Friday 00:00 - 08:00 Summary
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Sarah informed me that Jamie was performing the sorting and saving of spectra differently and didn't know what exactly to do so I will not be performing
any sorting.
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Thu May 26 23:46:40 2011, Sarah and Brian, Routine, General, Thu 16:00-00:00 summary
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Run139
Started 19:05:03 |
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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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Thu May 26 02:54:10 2011, Derek and Naomi, Routine, General, Thu 0-8am shift summary
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For run 123:
Beam outage for ~15 min but not stopping run. |
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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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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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Wed May 25 18:05:55 2011, Mike Bentley, Routine, General, Report on day shift and changed energy - now at 3.98 MeV/u
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All ran smoothly.
As a test, ran for a short period at 1200 midday to run without S2-2 in the trigger. Finished that at 1339.
After discussion with Alison, Alex, Brian, Chris - we decided to change energy to 3.98 MeV/u. This started at 1340. |