MEASUREMENT OF ABSOLUTE DOSES OF GAMMA-RADIATION WITH METALLIC IONIZATION CHAMBERS

Technical Report · Sat Oct 31 04:00:00 EST 1959

OSTI ID:4283275

Klumpar, J

An investigation was made of the influence of wall material, wall thickness, and ionization volume of cylindrical ionization chambers exposed to known doses of gamma radiation in the range 84 to 1600 kv on the ionization current per unit of volume. The result s of the measurements show the increasing influence of a higher atomic number of the wall material on the increase of the iorization currert, especially in the range of low energies of gamma radiation. The experimental figures further show a distinct influence of the ionization volume with a maximum in the range of 3 cm/sup 3/. This effect is explained when the spectrum of the secondary electrons originating in the wall and the higher linear density of ions on the tracks of the electrons in air are considered. (auth)

• Research Organization: Czechoslovakia
• NSA Number: NSA-13-006754
• OSTI ID: 4283275
• Report Number(s): A/CONF.15/P/2108
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

AIR
ATOMS
BUILDING MATERIALS
CONFIGURATION
CURRENTS
CYLINDERS
DISTRIBUTION
ELECTRIC CHARGES
ELECTRONS
ENERGY RANGE
GAMMA DETECTION
GAMMA RADIATION
INSTRUMENTS
IONIZATION
IONIZATION CHAMBERS
IONS
IRRADIATION
KEV RANGE
MEASURED VALUES
METALS
OPERATION
PARTICLE TRACKS
RADIATION DOSES
SECONDARY EMISSION
SPECTRA
THICKNESS
VARIATIONS
VOLUME