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Measurements

Measurements of the Single Electron Response (SER) of the photomultipliers. For a full list of the available photomultipliers, see PhotomultiplierInventory2018.

ID LED HV Timebase Scale Int Min Int Max Result Comments
Sune 1.470 2150 10 ns/div 20 mV/div 2 7    
1.470 2198 10 ns/div 20 mV/div 2 7    
1.470 2250 10 ns/div 20 mV/div 2 7    
8919 1.445 2490 10 ns/div 20 mV/div 3.5 7   No separation
7481 1.435 2496 10 ns/div 20 mV/div 3.5 8   No separation
7497 1.420 2300 10 ns/div 20 mV/div 4 8   Weird results:
  • We do see a peak moving with the HV, but there is some kind of underlying structure. What is it?
  • The larger pulses also seem to always come accompanied by a second smaller pulse.
7980 1.420 2200 10 ns/div 20 mV/div 1.5 5   Best separaton so far in our photomultipliers
1.420 2250 10 ns/div 20 mV/div 1 4  
6810 1.390 2350 10 ns/div 20 mV/div 1.5 5   Not the best separation and operating close to maximum voltage
         

-- CristovaoDaCruzESilva - 2018-06-11

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Topic revision: r2 - 2018-06-12 - CristovaoDaCruzESilva
 
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