Radiation detector

Patent · Fri Dec 05 04:00:00 EST 1980

OSTI ID:6088286

Fultz, B T

Apparatus is provided for detecting radiation such as gamma rays and x-rays generated in backscatter Moessbauer 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.

• DOE Contract Number: W-7405-ENG-48
• Assignee: TIC; EDB-82-003512; ERA-07-004853
• Patent Number(s): None
• OSTI ID: 6088286
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400104* -- Spectral Procedures-- (-1987)
440100 -- Radiation Instrumentation
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ANNULAR SPACE
ANODES
BACKSCATTERING
CATHODES
CONFIGURATION
ELECTRIC FIELDS
ELECTRODES
ELECTROMAGNETIC RADIATION
GAMMA RADIATION
IONIZATION CHAMBERS
IONIZING RADIATIONS
MEASURING INSTRUMENTS
MOESSBAUER EFFECT
RADIATION DETECTORS
RADIATIONS
SCATTERING
SPACE
SPECTROSCOPY
TOROIDAL CONFIGURATION
X RADIATION
X-RAY SPECTROSCOPY