ENERGY RESPONSE OF LANDSVERK IONIZATION CHAMBERS TO MONOENERGETIC GAMMA RAYS

Technical Report · Tue May 01 04:00:00 EDT 1962

OSTI ID:4764125

Lynn, R L; DaGragnano, V L

An energy response calibration of Landsverk L-65, L-81, and L-83 pocket chambers was carried out using monoenergetic gamma-emitting radioisotopes. Since the intensity of the sources was low, the pocket chambers were used as ratemeters and the ionization currert was read on a vibrating-reed electrometer. The dose rate of each isotope (Co/sup 60/, Cs/sup 137/, Hg/sup 203/, and Ce/sup 141/) was calibrated with a scintillation spectrometer. The angular response of the chambers for energies of 1.25 Mev, 662 kev, 279 kev, and 145 kev, respectively, was measured in one quadrant. The effect of wall thickness on the energy response was also investigated. (auth)

• Research Organization: Naval Radiological Defense Lab., San Francisco
• NSA Number: NSA-17-001751
• OSTI ID: 4764125
• Report Number(s): USNRDL-TR-580
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ANGULAR DISTRIBUTION
CERIUM 141
CESIUM 137
COBALT 60
CURRENTS
EFFICIENCY
ELECTROMETERS
ENERGY
ENERGY LEVELS
GAMMA RADIATION
INSTRUMENTS AND INSTRUMENTATION
IONIZATION
IONIZATION CHAMBERS
MERCURY 203
POCKET CHAMBERS
RADIATION DOSES
RADIOISOTOPES
SCINTILLATION COUNTERS
SENSITIVITY
SPECTROMETERS
SURFACES
THICKNESS