Microgap x-ray detector
Abstract
An x-ray detector is disclosed which provides for the conversion of x-ray photons into photoelectrons and subsequent amplification of these photoelectrons through the generation of electron avalanches in a thin gas-filled region subject to a high electric potential. The detector comprises a cathode (photocathode) and an anode separated by the thin, gas-filled region. The cathode may comprise a substrate, such a beryllium, coated with a layer of high atomic number material, such as gold, while the anode can be a single conducting plane of material, such as gold, or a plane of resistive material, such as chromium/silicon monoxide, or multiple areas of conductive or resistive material, mounted on a substrate composed of glass, plastic or ceramic. The charge collected from each electron avalanche by the anode is passed through processing electronics to a point of use, such as an oscilloscope. 3 figures.
- Inventors:
- Issue Date:
- OSTI Identifier:
- 7184218
- Patent Number(s):
- 5308987
- Application Number:
- PPN: US 8-011637
- Assignee:
- Dept. of Energy, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 1 Feb 1993
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; RADIATION DETECTORS; DESIGN; X-RAY DETECTION; CHARGE COLLECTION; ELECTRIC DISCHARGES; PHOTOCATHODES; CATHODES; DETECTION; ELECTRODES; MEASURING INSTRUMENTS; RADIATION DETECTION; 440101* - Radiation Instrumentation- General Detectors or Monitors & Radiometric Instruments
Citation Formats
Wuest, C R, Bionta, R M, and Ables, E. Microgap x-ray detector. United States: N. p., 1994.
Web.
Wuest, C R, Bionta, R M, & Ables, E. Microgap x-ray detector. United States.
Wuest, C R, Bionta, R M, and Ables, E. Tue .
"Microgap x-ray detector". United States.
@article{osti_7184218,
title = {Microgap x-ray detector},
author = {Wuest, C R and Bionta, R M and Ables, E},
abstractNote = {An x-ray detector is disclosed which provides for the conversion of x-ray photons into photoelectrons and subsequent amplification of these photoelectrons through the generation of electron avalanches in a thin gas-filled region subject to a high electric potential. The detector comprises a cathode (photocathode) and an anode separated by the thin, gas-filled region. The cathode may comprise a substrate, such a beryllium, coated with a layer of high atomic number material, such as gold, while the anode can be a single conducting plane of material, such as gold, or a plane of resistive material, such as chromium/silicon monoxide, or multiple areas of conductive or resistive material, mounted on a substrate composed of glass, plastic or ceramic. The charge collected from each electron avalanche by the anode is passed through processing electronics to a point of use, such as an oscilloscope. 3 figures.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {5}
}