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Final Run 9 500 GeV BSMD Status - Willie Leight
Updated on Thu, 2009-06-18 12:25. Originally created by wleight on 2009-04-22 22:35.
Under:
BSMD Pedestals and Status for Run 9 pp 500 Data (June 2009, uploaded to offline DB)
The BSMD status analysis for the 500 GeV data proceeds as follows:
- Each strip is assigned a status for the whole run from an analysis of fills 10399, 10402, 10403, 10404, 10407, 10412, and 10415. Pedestals are analyzed using NZS data taken by the BSMD online monitoring, which reads NZS data from evp and subtracts off pedestals which are updated each time a new BSMD pedestal run is taken. Because NZS data is essentially minbias, high energy tails are analyzed using L2W-triggered data. Status bits are described in detail here.
- Once each strip has an assigned status, those strips that are not marked as bad move on to the second step. Here the strips are examined fill-by-fill: for each fill the strip pedestal is QAed by re-applying the pedestal cuts (but not the tail cuts due to lack of statistics), and a new status for that fill is determined.
- Next, a pedestal correction is calculated. The pedestal correction is just the MPV of the pedestal residua if the MPV is greater than the RMS of the pedestal residua.
- Finally, we upload a number of tables to the database: for each BSMD plane there is one that contains a universal status for every strip, one for each fill containing a status for every strip, and one for each fill containing the RMS and pedestal correction for every strip.
Attached is a pdf that presents the results of this study, including examples.
All code and root files are archived at /star/institutions/mit/wleight/archive/2009-pp500-bsmdStatus/.
Table 1: Pedestal correction, RMS, and status vs. fill for each module (Crates 1-4 are the West Barrel)
Table 2: BSMD spectra for 150 eta and 150 phi strips used for status determination for each module (for fills listed above). Bad strips are identified with the status (in hex): strips with red status are marked bad, strips with green failed a cut but are not necessarily bad. Note that these spectra are shifted up by 100 on the X-axis so that the pedestal is centered around 100 rather than 0.
Table 3: Fills used in this study.
# Fill Date Begin run End run LT/pb
1 F10383 2009-03-18 R10076134 R10076161 0.00
2 F10398 2009-03-20 R10078076 R10079017 0.08
3 F10399 2009-03-20 R10079027 R10079086 0.22
4 F10402 2009-03-21 R10079129 R10079139 0.04
5 F10403 2009-03-21 R10080019 R10080022 0.01
6 F10404 2009-03-22 R10080039 R10080081 0.09
7 F10407 2009-03-22 R10081007 R10081056 0.05
8 F10412 2009-03-23 R10081096 R10082095 0.23
9 F10415 2009-03-24 R10083013 R10083058 0.24
10 F10426 2009-03-25 R10084005 R10084024 0.11
11 F10434 2009-03-26 R10085016 R10085039 0.18
12 F10439 2009-03-27 R10085096 R10086046 0.26
13 F10448 2009-03-28 R10087001 R10087041 0.29
14 F10449 2009-03-28 R10087051 R10087097 0.32
15 F10450 2009-03-29 R10087110 R10088036 0.29*
16 F10454 2009-03-29 R10088058 R10088085 0.15*
17 F10455 2009-03-30 R10088096 R10089023 0.29*
18 F10463 2009-03-31 R10089079 R10090027 0.20*
19 F10464 2009-03-31 R10090037 R10090047 0.08*
20 F10465 2009-03-31 R10090071 R10090112 0.13*
21 F10471 2009-04-02 R10091089 R10092050 0.30
22 F10476 2009-04-03 R10092084 R10093036 0.28
23 F10478 2009-04-03 R10093057 R10093085 0.08
24 F10482 2009-04-04 R10093110 R10094024 0.55
25 F10486 2009-04-05 R10094063 R10094099 0.52
26 F10490 2009-04-05 R10095019 R10095057 0.40
27 F10494 2009-04-06 R10095120 R10096027 0.61
28 F10505 2009-04-07 R10096139 R10097045 0.39
29 F10507 2009-04-08 R10097086 R10097153 0.29
30 F10508 2009-04-08 R10098029 R10098046 0.17
31 F10517 2009-04-09 R10099020 R10099078 0.32**
32 F10525 2009-04-10 R10099185 R10100032 0.68
33 F10526 2009-04-10 R10100049 R10100098 0.37
34 F10527 2009-04-11 R10100164 R10101020 0.82
35 F10528 2009-04-11 R10101028 R10101040 0.31
36 F10531 2009-04-12 R10101059 R10102003 0.86
37 F10532 2009-04-12 R10102031 R10102070 0.76
38 F10535 2009-04-13 R10102094 R10103018 0.86
39 F10536 2009-04-13 R10103027 R10103046 0.43
* Crate 2 was off for this fill
** This fill had no BSMD data
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