Difference between revisions of "LB Calibration 2/12/17"

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root command line used:
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The TempVoltage Fit give A = -7.2859 +/- 2.12139, B = 0.500646 +/- 0.00177798
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PAA->Draw("PADC.PADC785N[3]/2-8>>photons(2000,0,2000)","")
 
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ROOT gives values for A = 0.322688 +/- 1.09 and B is 0.997955 +/- 0.0018. Here A has a very large error. Plotting the function only using B will give values that are roughly 0.3 keV away from the expected energy values.
 
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So the calibrated command is
 
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PAA->Draw("PADC.PADC785N[3]/2-8 + 0.997955>>photons(2000,0,2000)","")
 
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==Calibration 2/13/17==
 
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{| border="3"  cellpadding="5" cellspacing="0"
 
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| Run Number || Isotope || Reference Date || Serial # || Activity || Egamma (keV)||Channel ||Runtime (s)
 
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||5911 || Thorium Rods || || || || 238.8 ||
 
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||"" || "" || || || || 338.8 ||
 
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|| "" || "" || || || || 583.4 ||
 
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|| "" || "" || || || ||  911.2 ||
 
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||"" || "" || || ||  ||2614.6 ||
 
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|}
 

Latest revision as of 13:46, 13 February 2017

Runlist

Run Number Isotope Reference Date Serial # Activity Egamma (keV) Channel Runtime (s)
r5892 Na-22 07/15/13 K4-899 10.19uCi 511 510.2 +/- 2.41 258
r5892 Na-22 07/15/13 K4-899 10.19uCi 1274.537 1272 +/- 2.729 258
r5893 Eu-152 07/01/08 129754 10.97uCi 1408.1 1406 +/- 2.859 361
r5893 Eu-152 "" "" "" "" "" "" 963.39 962 +/- 2.833 361
r5893 Eu-152 "" "" "" "" "" "" 778.9 777.3 +/- 2.851 361
r5893 Eu-152 "" "" "" "" "" "" 121.78 121.9 +/- 3.765 361
r5894 Ba-133 04/15/07 1235-74-3 9.821uCi 80.9971 81.27 +/- 4.52 563
r5894 Ba-133 "" "" "" "" "" "" 276.3997 276.2 +/- 1.947 563
r5894 Ba-133 "" "" "" "" "" "" 302.8510 302.6 +/- 1.406 563
r5894 Ba-133 "" "" "" "" "" "" 356.0134 355.5+/-1.289 563
r5894 Ba-133 "" "" "" "" "" "" 383.8480 383.3 +/- 1.39 563
r5895 Cs-137 05/01/05 S4121 9.067uCi 661.657 660.1 +/- 1.576 325

The TempVoltage Fit give A = -7.2859 +/- 2.12139, B = 0.500646 +/- 0.00177798

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