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Title: Semiconductor radiation detector

Abstract

A semiconductor radiation detector is provided to detect x-ray and light photons. The entrance electrode is segmented by using variable doping concentrations. Further, the entrance electrode is physically segmented by inserting n+ regions between p+ regions. The p+ regions and the n+ regions are individually biased. The detector elements can be used in an array, and the p+ regions and the n+ regions can be biased by applying potential at a single point. The back side of the semiconductor radiation detector has an n+ anode for collecting created charges and a number of p+ cathodes. Biased n+ inserts can be placed between the p+ cathodes, and an internal resistor divider can be used to bias the n+ inserts as well as the p+ cathodes. A polysilicon spiral guard can be implemented surrounding the active area of the entrance electrode or surrounding an array of entrance electrodes.

Inventors:
 [1];  [2];  [3];  [4]
  1. (Sherman Oaks, CA)
  2. (Los Angeles, CA)
  3. (Orinda, CA)
  4. (Westlake Village, CA)
Publication Date:
Research Org.:
Photon Imaging, Inc., Northridge, CA
OSTI Identifier:
874763
Patent Number(s):
US 6455858
Assignee:
Photon Imaging, Inc. (Northridge, CA) OAK
DOE Contract Number:  
FG03-97ER82450
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
semiconductor; radiation; detector; provided; detect; x-ray; light; photons; entrance; electrode; segmented; variable; doping; concentrations; physically; inserting; regions; individually; biased; elements; array; applying; potential; single; anode; collecting; created; charges; cathodes; inserts; placed; internal; resistor; divider; bias; polysilicon; spiral; guard; implemented; surrounding; active; electrodes; radiation detector; detector element; /250/257/

Citation Formats

Patt, Bradley E., Iwanczyk, Jan S., Tull, Carolyn R., and Vilkelis, Gintas. Semiconductor radiation detector. United States: N. p., 2002. Web.
Patt, Bradley E., Iwanczyk, Jan S., Tull, Carolyn R., & Vilkelis, Gintas. Semiconductor radiation detector. United States.
Patt, Bradley E., Iwanczyk, Jan S., Tull, Carolyn R., and Vilkelis, Gintas. Tue . "Semiconductor radiation detector". United States. https://www.osti.gov/servlets/purl/874763.
@article{osti_874763,
title = {Semiconductor radiation detector},
author = {Patt, Bradley E. and Iwanczyk, Jan S. and Tull, Carolyn R. and Vilkelis, Gintas},
abstractNote = {A semiconductor radiation detector is provided to detect x-ray and light photons. The entrance electrode is segmented by using variable doping concentrations. Further, the entrance electrode is physically segmented by inserting n+ regions between p+ regions. The p+ regions and the n+ regions are individually biased. The detector elements can be used in an array, and the p+ regions and the n+ regions can be biased by applying potential at a single point. The back side of the semiconductor radiation detector has an n+ anode for collecting created charges and a number of p+ cathodes. Biased n+ inserts can be placed between the p+ cathodes, and an internal resistor divider can be used to bias the n+ inserts as well as the p+ cathodes. A polysilicon spiral guard can be implemented surrounding the active area of the entrance electrode or surrounding an array of entrance electrodes.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {1}
}

Patent:

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