Difference between revisions of "BCAL Hybrid Module Cosmic Tests"
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− | + | ==Cosmic Images== | |
− | [[Image: | + | [[Image:DSC00750.JPG|thumb|left|100px]] |
− | [[Image: | + | [[Image:DSC00753.JPG|thumb|left|100px]] |
− | [[Image: | + | [[Image:P1000967.jpg|thumb|left|100px]] |
− | [[Image: | + | [[Image:P1000962.jpg|thumb|left|100px]] |
− | [[Image: | + | [[Image:P1000961.jpg|thumb|left|100px]] |
− | [[Image:P1000966.jpg| | + | [[Image:P1000965.jpg|thumb|left|100px]] |
+ | |||
+ | [[Image:P1000966.jpg|thumb|left|100px]] | ||
+ | |||
+ | <br style="clear:both;"/> | ||
+ | |||
+ | ==Trigger Arrangement== | ||
+ | |||
+ | [[Image:TrigArrangement.gif|thumb|left|100px]] | ||
+ | |||
+ | <br style="clear:both;"/> | ||
+ | |||
+ | ==Plateaus== | ||
+ | |||
+ | [[Image:NBPlateau.gif|thumb|left|100px]] | ||
+ | |||
+ | [[Image:NTPlateau.gif|thumb|left|100px]] | ||
+ | |||
+ | [[Image:SBPlateau.gif|thumb|left|100px]] | ||
+ | |||
+ | [[Image:STPlateau.gif|thumb|left|100px]] | ||
+ | |||
+ | [[Image:CherenkovPlateau.gif|thumb|left|100px]] | ||
+ | |||
+ | <br style="clear:both;"/> | ||
+ | |||
+ | ==Gain Matching== | ||
+ | |||
+ | [[Image:AdcvsVolts.gif|thumb|left|100px]] | ||
+ | |||
+ | <br style="clear:both;"/> | ||
+ | |||
+ | The following plot shows the ratio of mean ADC channels (away from the pedestal) for the BCAL PMTs set at different high voltages. The x-axis can be read as: 1=NB; 2=NT; 3=SB; 4=ST. The flat lines are the expected ratios based on the typical responsivity curve as given in the specs sheet for Burle 8575 PMTs. From that curve, at 2500V gain = 1.5x<math>10^6</math>, at 2300V gain = 7x<math>10^5</math>, and at 2100V gain = 2.7x<math>10^5</math>. | ||
+ | [[Image:RatioPlot.gif|thumb|left|100px]] |
Latest revision as of 12:54, 20 June 2007
Cosmic Images
Trigger Arrangement
Plateaus
Gain Matching
The following plot shows the ratio of mean ADC channels (away from the pedestal) for the BCAL PMTs set at different high voltages. The x-axis can be read as: 1=NB; 2=NT; 3=SB; 4=ST. The flat lines are the expected ratios based on the typical responsivity curve as given in the specs sheet for Burle 8575 PMTs. From that curve, at 2500V gain = 1.5x, at 2300V gain = 7x, and at 2100V gain = 2.7x.