X-ray detector
An ionization chamber for use in determining the spatial distribution of x-ray photons in tomography systems comprises a plurality of substantially parallel, planar anodes separated by parallel, planar cathodes and enclosed in a gas of high atomic weight at a pressure from approximately 10 atmospheres to approximately 50 atmospheres. The cathode and anode structures comprise metals which are substantially opaque to x-ray radiation and thereby tend to reduce the resolution limiting effects of xray fluoresence in the gas. In another embodiment of the invention the anodes comprise parallel conductive bars disposed between two planar cathodes. Guard rings eliminate surface leakage currents between adjacent electrodes.
- Assignee:
- General Electric Co
- Patent Number(s):
- US RE 30644
- OSTI ID:
- 6017619
- Country of Publication:
- United States
- Language:
- English
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X-ray detector array. [for computerized tomography]
Ionizing radiation detector adapted for use with tomography systems
Related Subjects
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
550602 -- Medicine-- External Radiation in Diagnostics-- (1980-)
62 RADIOLOGY AND NUCLEAR MEDICINE
ARGON
COMPUTERIZED TOMOGRAPHY
DESIGN
DETECTION
DIAGNOSTIC TECHNIQUES
ELECTRODES
ELEMENTS
FLUIDS
GASES
IONIZATION CHAMBERS
KRYPTON
MEASURING INSTRUMENTS
NONMETALS
RADIATION DETECTION
RADIATION DETECTORS
RARE GASES
TOMOGRAPHY
X-RAY DETECTION
XENON