MHS kwiecień 2008 testy MPPC w KYOTO i u Francuzów
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http://www.nd280.org/ngrid/Meetings/ingridmeetingllr/ Meeting on 2008/03/20-21 MPPC test bench at KYOTO
MHS kwiecień 2008 testy MPPC w KYOTO i u Francuzów
2http://www.nd280.org/ngrid/Meetings/ingridmeetingllr/ MPPC test bench at KYOTO
MHS kwiecień 2008 testy MPPC w KYOTO i u Francuzów
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http://www.nd280.org/ngrid/Meetings/ingridmeetingllr/ MPPC test bench at KYOTO
MHS kwiecień 2008 testy MPPC w KYOTO i u Francuzów
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MHS kwiecień 2008 testy MPPC w KYOTO i u Francuzów
5ze światłem
X bez światła
MHS kwiecień 2008 testy MPPC w KYOTO i u Francuzów
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http://www.nd280.org/ngrid/Meetings/ingridmeetingllr/ MPPC test bench at KYOTO
MHS kwiecień 2008 testy MPPC w KYOTO i u Francuzów
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250C
http://www.nd280.org/ngrid/Meetings/ingridmeetingllr/ MPPC test bench at KYOTO
MHS kwiecień 2008 testy MPPC w KYOTO i u Francuzów
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What information will we need in future (construction, operation) from test bench?
• We will save all raw data and check all measurements, but it will be too much tohandle for later use• Construction needs:
• to reject ‘bad’ ones (screening)• to sort devices (e.g. by Vbd)
• Operation needs:• Calibration will be done in situ, anyway• Still we need ‘firm’ reference point
• I propose following to start discussion Your inputs are really welcomeSerial ID (TA0001, TB0001, ....)
• Breakdown voltage and gain slope for 3 temps• Noise rate (>1pe) at a fixed ΔV (for 3 temp)• PDE at a fixed ΔV (expect no temp/device dependence)• Cross-talk + afterpulse at a fixed ΔV (expect no temp/device dep.)• Hamamatsu test data• Any note during measurement(?)
•Do we need more points?
http://www.nd280.org/ngrid/Meetings/ingridmeetingllr/ MPPC test bench at KYOTO
MHS kwiecień 2008 testy MPPC w KYOTO i u Francuzów
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• What do we have to measure ?
– Reverse current vs Vop & T° (Vbr+ΔV)
– Gain vs Vop & T°
– Dark Noise Rate vs Vop & T°
– Photo detection efficiency P.D.E.
(relative to PMT)
Where do we find those information with new packaging ?
Measured Gain 7.67E+05 To be compared with value on MPPC bag M=7.50E+05Dark Noise Rate 350 KHz value on MPPC Bag : 378 kHz (~0.5pe)Optical Crosstalk : 25 kHz value on MPPC Bag : 25 kHz (~1.5pe)
http://www.nd280.org/ngrid/Meetings/ingridmeetingllr/ Meeting on 2008/03/20-21 MPPC test bench at LAL
MHS kwiecień 2008 testy MPPC w KYOTO i u Francuzów
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MPPC IDKyoto / LLRHamamatsu data
gain, Vop, Noise 0.5 p.e., Noise 1.5 p.e.
•Vbd, Slope @15, 20, 25 °C•Noise rate @0.5 p.e. 15, 20, 250C DV = 1.4 V•PDE DV = 1.4 V @ 20 °C •Cross-talk DV = 1.4 V @ 20 °C•After-pulse DV = 1.4 V @ 20 °C
•Czy nie chcą mierzyć Noise Rate @ 1.5pe??
Serial ID (TA0001, TB0001, ....)
• Breakdown voltage and gain slope for 3 temps• Noise rate (>1pe) at a fixed ΔV (for 3 temp)• PDE at a fixed ΔV (expect no temp/device dependence)• Cross-talk + afterpulse at a fixed ΔV (expect no temp/device dep.) •Hamamatsu test data
• Any note during measurement(?)
Information in databasePropozycja
Francuzów KYOTO
http://www.nd280.org/ngrid/Meetings/ingridmeetingllr/ Meeting on 2008/03/20-21
Porównanie: MPPC Test Bench at LAL and Test Bench at Kyoto
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