THE GENEVA COUNTER. A LARGE LIQUID SCINTILLATION COUNTER FOR MEN AND MESONS

Technical Report · Tue Jul 01 04:00:00 EDT 1958

OSTI ID:4295232

Anderson, E C; Hayes, F N; Hiebert, R D

A new and greatly improved liquid scintillation counter, constructed for the Second Conference on Peaccful Uses of Atomic Energy at Geneva, is described. Natural potassium activity of the human body can be measured to a precision of 3 per cent in 100 seconds of counting time, and the sensitivity for extraneous gamma activity is better than 0.00l mu c. Hard beta emitters, such as Sr/sup 90/ and Y/sup 90/, can be measured at 10 per cent of the maximum permissible body burden. Energy resolution is adequate to permit simultaneous measurements in 4 energy channels. e.g., K/sup 40/, Cs/sup 137/, I/sup 131/, and bremsstrahlung. As illustrations of the usefulnes; of large detectors for the study of cosmic rays and rare nuclear events, results are given of the measurement of the mu meson half-life and decay electron spectrum and of the cosmic ray background spectrum above 1,000 Mev. (auth)

• Research Organization: Los Alamos Scientific Lab., N. Mex.
• DOE Contract Number: W-7405-ENG-36
• NSA Number: NSA-13-000798
• OSTI ID: 4295232
• Report Number(s): LA-2238
• Country of Publication: United States
• Language: English

Related Subjects

BACKGROUND
BETA PARTICLES
BODY
BREMSSTRAHLUNG
CESIUM 137
COSMIC RADIATION
COUNTERS
ENERGY
ENERGY RANGE
ERRORS
GAMMA RADIATION
HALF-LIFE
INSTRUMENTS
IODINE 131
LIQUID SCINTILLATORS
LIQUIDS
MAN
MEASURED VALUES
MUONS
PHOSPHORS
PHYSICS AND MATHEMATICS
POTASSIUM
POTASSIUM 40
RADIATION DETECTORS
RADIATION DOSES
RADIOACTIVITY
RESOLUTION
SCINTILLATION COUNTERS
SPECTRA
STRONTIUM 90
SWITZERLAND
YTTRIUM 90