Radiation detector

Patent · Tue Jul 12 04:00:00 EDT 1983

OSTI ID:5480667

Fultz, B T

Apparatus is provided for detecting radiation such as gamma rays and X-rays generated in backscatter Mossbauer effect spectroscopy and X-ray spectrometry, which has a large ''window'' for detecting radiation emanating over a wide solid angle from a specimen and which generates substantially the same output pulse height for monoenergetic radiation that passes through any portion of the detection chamber. The apparatus includes a substantially toroidal chamber with conductive walls forming a cathode, and a wire anode extending in a circle within the chamber with the anode lying closer to the inner side of the toroid which has the least diameter than to the outer side. The placement of the anode produces an electric field, in a region close to the anode, which has substantially the same gradient in all directions extending radially from the anode, so that the number of avalanche electrons generated by ionizing radiation is independent of the path of the radiation through the chamber.

• Assignee: US Department of Energy
• Patent Number(s): US 4393306
• OSTI ID: 5480667
• Country of Publication: United States
• Language: English

Related Subjects

440101* -- Radiation Instrumentation-- General Detectors or Monitors & Radiometric Instruments
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
BACKSCATTERING
DESIGN
DETECTION
GAMMA DETECTION
MEASURING INSTRUMENTS
PROPORTIONAL COUNTERS
RADIATION DETECTION
RADIATION DETECTORS
SCATTERING
SPECTROSCOPY
X-RAY DETECTION