Field test of the hybrid photodetector R9792U-40 on the MAGIC camera

Bibcode
2011ICRC....9..214S
Saito, Takayuki
Bibliographical reference

Proceedings of the 32nd International Cosmic Ray Conference (ICRC2011), held 11-18 August, 2011 in Beijing, China. Vol. 9 OG2.5: Cosmic Ray Origin and Galactic Phenomena, p.214

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0
2011
Number of authors
1
IAC number of authors
0
Citations
0
Refereed citations
0
Description
The hybrid photodetector (HPD) R9792U-40 has very high peak quantum efficiency ($>50$% at 500 nm), excellent charge resolution and very low after-pulsing probability (500 times less than that of currently used photomultipliers (PMTs)). These features will improve the sensitivity, the energy resolution and the energy threshold of the MAGIC telescope. On the other hand, its high photocathode voltage (-8 to -6 kV), relatively short photocathode lifetime, and relatively large temperature dependence of the gain need to be taken care of. In February 2010, 6 HPDs were installed in a corner of the MAGIC-II camera for a field test. Here we report the results of the field test and our future plans.
Type
Non-refereed

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