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New CHOD detector for the NA62 experiment at CERN |
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| Authors: | S.?A.?Fedotov mailto:fedotov@inr.ru" title=" fedotov@inr.ru" itemprop=" email" data-track=" click" data-track-action=" Email author" data-track-label=" " >Email author,A.?A.?Kleymenova,A.?N.?Khotjantsev |
| Affiliation: | 1.Institute for Nuclear Research,Russian Academy of Sciences,Moscow,Russia |
| Abstract: | The New CHOD is a scintillation hodoscope with a pad structure featuring a total of 148 counters. The signal from each pad is read out using wavelength-shifting fibers and two or four SensL SiPMs with a sensitive area of 3 × 3 mm2. This photodetector has 4774 pixels 35 × 35 μm2 in size. The key parameters (photon detection efficiency, dark current, crosstalk, and gain) were measured for 500 SiPMs. |
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