Wide Spectral Responses Inxga1-Xn Deep Uv Photomultiplier Tube

Shoichi Uchiyama,Yasufumi Takagi,Haruyasu Kondoh,Hiroyuki Takatsuka,Hideaki Suzuki,Yasuo Ohishi,Nobuharu Suzuki,Kazuyoshi Okano,Minoru Niigaki,Hirofumi Kan

PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 4 NO 7 2007（2007）

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摘要

We have designed and fabricated new photo-tubes and photomultiplier tubes (PMTs) using InxGa1-xN, films as photocathodes. Longer spectral cutoffs were controlled with Indium compositions x, from 365 nm to 430 nm. The calibrated maximum quantum efficiency (QE) of 56% at 200 nm was achieved for x =. 11 Indium composition in the photo-tubes. Sharp cutoffs at around 160 runs were determined by window materials and those at around 400 runs were determined by the band gaps of the photocathodes. Gain and input/output linearity properties were confirmed to be very good for the PMTs. (c) 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

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wide spectral responses,uv

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