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Title: Amorphous silicon radiation detectors

Hydrogenated amorphous silicon radiation detector devices having enhanced signal are disclosed. Specifically provided are transversely oriented electrode layers and layered detector configurations of amorphous silicon, the structure of which allow high electric fields upon application of a bias thereby beneficially resulting in a reduction in noise from contact injection and an increase in signal including avalanche multiplication and gain of the signal produced by incoming high energy radiation. These enhanced radiation sensitive devices can be used as measuring and detection means for visible light, low energy photons and high energy ionizing particles such as electrons, x-rays, alpha particles, beta particles and gamma radiation. Particular utility of the device is disclosed for precision powder crystallography and biological identification.
Authors:
 [1] ;  [2] ;  [3]
  1. (Palo Alto, CA)
  2. (Berkeley, CA)
  3. (El Cerrito, CA)
Publication Date:
OSTI Identifier:
868545
Report Number(s):
US 5164809
DOE Contract Number:
AC03-76SF00098
Resource Type:
Patent
Research Org:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA
Country of Publication:
United States
Language:
English
Subject:
amorphous; silicon; radiation; detectors; hydrogenated; amorphous; silicon; radiation; detector; devices; enhanced; signal; disclosed; specifically; provided; transversely; oriented; electrode; layers; layered; detector; configurations; amorphous; silicon; structure; allow; electric; fields; application; bias; beneficially; resulting; reduction; noise; contact; injection; increase; signal; including; avalanche; multiplication; signal; produced; incoming; energy; radiation; enhanced; radiation; sensitive; devices; measuring; detection; means; visible; light; energy; photons; energy; ionizing; particles; electrons; x-rays; alpha; particles; beta; particles; gamma; radiation; particular; utility; device; disclosed; precision; powder; crystallography; biological; identification; energy radiation; detection means; electric field; amorphous silicon; amorphous silicon; amorphous silicon; hydrogenated amorphous; visible light; radiation detector; radiation detector; gamma radiation; alpha particle; radiation detectors; alpha particles; electric fields; signal produced; beta particles; particular utility; radiation sensitive; silicon radiation; silicon radiation; precision powder; signal including; enhanced radiation; energy photon; energy photons; sensitive device; specifically provided; energy ionizing; electrode layers; electrode layer; transversely oriented; beta particle; detector device; ionizing particle /257/250/