Characterization of a Hamamatsu R7600 multi-anode photomultiplier tube with single photon signals

被引:6
作者
Calvi, M. [1 ,2 ]
Giachero, A. [1 ,2 ]
Gotti, C. [1 ,3 ]
Maino, M. [1 ,2 ]
Matteuzzi, C. [1 ,2 ]
Pessina, G. [1 ,2 ]
机构
[1] Ist Nazl Fis Nucl, Sez Milano Bicocca, I-20126 Milan, Italy
[2] Univ Milano Bicocca, Dipartimento Fis G Occhialini, I-20126 Milan, Italy
[3] Univ Florence, Dipartimento Elettron & Telecomunicaz, I-50139 Florence, Italy
关键词
Photon detectors for UV; visible and IR photons (vacuum); Detectors for UV; visible and IR photons; visible and IR photons (vacuum) (photomultipliers; HPDs; others);
D O I
10.1088/1748-0221/8/02/P02012
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
The characterization of the single photon response of the Hamamatsu R7600 multi-anode photomultiplier tube (MaPMT) is presented, in view of a possible application in Ring Imaging Cherenkov (RICH) detectors and high rate single photon counting applications in general. For most of the measurements the main source of single photons was a commercial blue LED biased with a small current of a few nA. The spectra obtained with this source match those obtained with Cherenkov light from a PbF2 crystal illuminated with a Na-22 gamma source, confirming that the test signals are single photons. Dark current and cross-talk were measured at the single photoelectron level. The single photon response of the PMT was also studied as a function of the bias ratio between dynodes. The sensitivity to magnetic field up to 30 G and the effectiveness of three magnetic shields with different geometries were evaluated. Gain loss due to aging was also studied up to 2000 hours of operation at high counting rate.
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页数:12
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