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0236211846 LAC_

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MidPos Temperature 11-15 C

File r0236211846PED_MidPosScatter.png 8 kb Sanchez David Jun 26, 2008 Edit | Remove
File T0L0C9F0.png 3 kb Sanchez David Jun 26, 2008 Edit | Remove
File T2L5C2F0.png 3 kb Sanchez David Jun 26, 2008 Edit | Remove
File T5L3C9F0.png 3 kb Sanchez David Jun 26, 2008 Edit | Remove
File T15C2L6F0.png 2 kb Sanchez David Jun 26, 2008 Edit | Remove
Text File r0236211846LAC_MidPos.lac_fit.log.txt 96 kb Sanchez David Jun 26, 2008 Edit | Remove
Text File r0236211846LAC_MidPos.lac_fit.txt 40 kb Sanchez David Jun 26, 2008 Edit | Remove
File r0236211846LAC_MidPos.png 2 kb Sanchez David Jun 26, 2008 Edit | Remove
File r0236211846LAC_MidPosScatter.png 8 kb Sanchez David Jun 26, 2008 Edit | Remove
File r0236211846PED_MidPos.png

LAC NEG thresholds

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The mean value is peaked at 4 MeV. The temperatures appear not to be uniform across the CALs.

LAC distribution per CDE

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*Y-axis: LAC threshold in MeV
*X-axis: (tower*96 + layer*12 + Xtal)

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There are a few outliers in the distribution. The two four extreme ones are:

 
;twr lyr col face lac errlac pedDrift lacMeV fitstat chi2 mev_slope mev_offset
1115 52 106 10 144148.106777 0.510417545897 -142.540281275 4.8637783631 0 109119.845418 0.030658031904 0 
130 40 49 10 7290.7489418 0.284042457961 -18.2074 2.83938 0 192.312 0.031217 0 6.89924 3 0 77.4273 0.030827 0 
2 5 2 0 93.6192 0.351582 -7.67663 3.12812 0 62.7175 0.030881 0 
5 3 9 0 101 0.434716 -3.64904 3.1987 0 80.0416 0.030566 0 

The LAC is well-defined, with sufficient statistics, so the threshold is real and might need to be corrected.

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