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Title: Gamma-insensitive optical sensor

An ultraviolet/visible/infrared gamma-insensitive gas avalanche focal plane array is described comprising a planar photocathode and a planar anode pad array separated by a gas-filled gap and across which is applied an electric potential. Electrons ejected from the photocathode are accelerated sufficiently between collisions with the gas molecules to ionize them, forming an electron avalanche. The gap acts like a proportional counter. The array of anode pad are mounted on the front of an anode plate and are connected to matching contact pads on the back of the anode via feed through wires. Connection of the anode to signal processing electronics is made from the contact pads using standard indium bump techniques, for example. 6 figures.
Inventors:
Issue Date:
OSTI Identifier:
5035739
Assignee:
Dept. of Energy, Washington, DC (United States) PTO; EDB-94-077031
Patent Number(s):
US 5294789; A
Application Number:
PPN: US 8-011639
Contract Number:
W-7405-ENG-48
Resource Relation:
Patent File Date: 1 Feb 1993
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; INFRARED RADIATION; RADIATION DETECTION; RADIATION DETECTORS; DESIGN; ULTRAVIOLET RADIATION; VISIBLE RADIATION; DATA PROCESSING; ELECTRONIC EQUIPMENT; DETECTION; ELECTROMAGNETIC RADIATION; EQUIPMENT; MEASURING INSTRUMENTS; PROCESSING; RADIATIONS; 440600* - Optical Instrumentation- (1990-); 440500 - Thermal Instrumentation- (1990-)