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APD

APD. photosensors:. L arge A rea A valanche P hoto D iodes (LAAPD). in collaboration with Hamamatsu Photonics. CMS. excellent performance at RT and T = –25 o C radiation resistent up to 10 13 protons in particular at T = -25 o C. new. 10x10mm 2. 5x5mm 2.

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APD

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  1. APD

  2. photosensors: Large Area Avalanche Photo Diodes (LAAPD) in collaboration with Hamamatsu Photonics CMS • excellent performance • at RT and T = –25oC • radiation resistent • up to 1013 protons • in particular at T = -25oC new 10x10mm2 5x5mm2 final concept: 2 LAAPDs/crystal, separately readout dimensions 7 x 14 mm2 CALOR 2012 - R.W.Novotny

  3. development of low noise, low power preamplifiers • ASIC (APFEL) large dynamic range 18mm • 2 channels/ 2 ranges • overall range 1 – 10.000 • noise level (cooled) • << 2 MeV • design of descrete components • for prototype studies CALOR 2012 - R.W.Novotny

  4. Panda APD size 7x14mm

  5. Panda APD see light below 500nm • Panda_EMC_TDR

  6. WLS has light around 500nm http://www.detectors.saint-gobain.com/fibers.aspx

  7. Hamamatsu has no APD for 500nm?http://sales.hamamatsu.com/index.php?id=13196302

  8. Photon radiation • 60Co photon 1.2MeV • 1e12 photon is 1.2e9 GeVor 0.192 J The remeasurements of the APD characteristics have been done after a storage of the diodes at room temperature in the order of one month

  9. Neutron radiation

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