SECONDARY ELECTRON SPECTRA AND THE SENSITIVITIES OF COUNTERS TO $gamma$- RAYS

Journal Article · Wed Jan 01 04:00:00 EST 1958 · Atomnaya Energ.

OSTI ID:4279953

Smirnov, V V

The energy distributions of secondary electrons knocked out by Cs/sup 137/(h nu = 662 kev) and Co/sup 60/ (h nu = 1171 and 1331 kev) from an aluminum half cylinder, 20 mm in diameter and 1.5 mm wall thickness, at 0, 15, 30 were measured. By summing the electron emission in various directrons, a picture was obtained of the angular distribution in the perpendicular plane forming a half cylinder. The absolute value of the counter efficiency for one of the gamma emitters was found by determining the absolute number of secondary electrons produced in the irradiation of half cylinders by Co/sup 60/ gamma r-ays. This was achieved by comparing the beta spectra with W/sup 185/, Y/sup 91/, and P/ sup 32/ placed on a fine plate of similar shape and dimensions as the target. (R.V.J.)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-13-004647
• OSTI ID: 4279953
• Journal Information: Atomnaya Energ., Journal Name: Atomnaya Energ. Vol. Vol: 5
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

ALUMINUM
ANGULAR DISTRIBUTION
BETA PARTICLES
CESIUM 137
COBALT 60
COMPTON EFFECT
CONFIGURATION
CYLINDERS
DISTRIBUTION
EFFICIENCY
ELECTRONS
EMISSION
ENERGY
ENERGY RANGE
GAMMA DETECTION
GAMMA RADIATION
GAMMA SOURCES
INSTRUMENTS
IRRADIATION
MEASURED VALUES
MEV RANGE
PARTICLE SOURCES
PHOSPHORUS 32
PHOTOELECTRIC EFFECT
PLATES
QUANTITATIVE ANALYSIS
RADIATION DETECTORS
SENSITIVITY
SPECTRA
STANDARDS
TARGETS
THICKNESS
TUNGSTEN 185
YTTRIUM 91