Author/Authors :
Braem، نويسنده , , A. and Chesi، نويسنده , , E. and Joram، نويسنده , , C. and Seguinot، نويسنده , , J. and Weilhammer، نويسنده , , P. and Giunta، نويسنده , , M. and Malakhov، نويسنده , , N. and Menzione، نويسنده , , A. Lopes Pegna، نويسنده , , R. and Piccioli، نويسنده , , A. and Raffaelli، نويسنده , , F. T. Sartori، نويسنده , , G.، نويسنده ,
Abstract :
The first sealed TOM Hybrid Photon Detector (HPD) with 10-in. diameter has been fabricated and successfully tested at CERN. This HPD has a spherical entrance window and a bialkali photocathode. The fountain focusing optics produces a demagnified image (D=4) on the round segmented silicon sensor. The signals of the 2048 cells are read out through analog front-end electronics encapsulated in the vacuum envelope. We report on the design, fabrication technique and the experimental results obtained with laboratory test benches. The large TOM HPD is a prototype tube developed for the CLUE cosmic ray experiment. The final tubes, now under development, will be equipped with a solar-blind Rb2Te photocathode and self triggering front-end electronics.
Keywords :
Hybrid photodiode , photodetector , Hybrid Photon Detector (HPD) , Photocathode , Bialkali , Rubidium telluride
