A SINGLE ION DETECTOR FOR MEASUREMENT OF $gamma$-RAY IONIZATION IN CAVITIES

Journal Article · Sun Jun 01 04:00:00 EDT 1958 · Health Physics (England)

DOI:https://doi.org/10.1097/00004032-195801000-00003· OSTI ID:4328397

Auxier, J A; Hurst, G S; Zedler, R E

A new method of measuring the energy absorbed in a medium due to gamma - ray irradiation is described. The method requires that a counting device have linear dimensions which are small compared to the mean free path for ionization of the counting gas by the secondary electrons. Under this condition the number of ionizing events in the counter is proportional to the energy absorbed in the gas; thus the energy absorbed in the surrounding wall may be inferred from the count rate by means of the Bragg--Gray principle. Application of the method is made to a tissue dosimeter which is capable of measuring the dose due to gamma - rays even when mked with fast neutrons. (auth)

• Research Organization: Oak Ridge National Lab., Tenn.
• Sponsoring Organization: USDOE
• NSA Number: NSA-12-012583
• OSTI ID: 4328397
• Journal Information: Health Physics (England), Journal Name: Health Physics (England) Vol. Vol: 1; ISSN HLTPA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ABSORPTION
BRAGG-GRAY PRINCIPLE
COUNTERS
DOSEMETERS
ELECTRONS
ENERGY
ENERGY RANGE
FAST NEUTRONS
GAMMA RADIATION
GASES
IONIZATION CHAMBERS
PERFORMANCE
PHYSICS
PLANNING
TISSUES
USES