Measurement of the Activity OF /cap beta/ Emitting Gases Using an Ionisation Chamber; MESURE DE L'ACTIVITE DES GAZ EMETTEURS /cap beta/ AU MOYEN D'UNE CHAMBRE D'IONISATION
Technical Report
·
OSTI ID:4663046
An ionization chamber was developed for measuring directly the activity of a BETA -emitting gas whatever the gas may be. The following two parameters are defined and determined: p, the average specific ionization produced by a BETA desintegration, and l, the average BETA path in the chamber. It was shown, during the determination of l, that the BETA particles are reflected on the walls of the ionization chamber when the latter are made of a high atomic number material. It was possible to eliminate this effect by constructing an electrode chamber made of graphite. With this chamber a direct measurement can be made of the activity of a gaseous BETA emitter with a precision of about plus or minus 10%. Some applications are given of the graphite electrode chamber (calibration of the chambers built industriaily and determination of the activation cross section of a gaseous emitier). It was possible to determine the activation cross section of Xe/sup 134/; a value of 0.18 plus or minus 0.03 barn was found. (auth)
- Research Organization:
- France. Commissariat a l'Energie Atomique. Centre d'Etudes Nucleaires, Saclay
- NSA Number:
- NSA-17-032398
- OSTI ID:
- 4663046
- Report Number(s):
- CEA-2215
- Country of Publication:
- France
- Language:
- English
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Related Subjects
ACTIVATION
ATOMIC MODELS
ATOMS
BETA DECAY
BETA PARTICLES
CROSS SECTIONS
ELECTRIC CHARGES
ELECTRODES
ELECTRON BEAMS
ELECTRONIC EQUIPMENT
ELECTRONS
EMISSION
ENERGY
ENERGY LEVELS
ENERGY RANGE
ERRORS
EXCITATION
GASES
GRAPHITE
HELIUM
INSTRUMENTS AND INSTRUMENTATION
IONIZATION
IONIZATION CHAMBERS
LIGHT
MEASURED VALUES
PARTICLE TRACKS
POLARIZATION
PRESSURE
QUANTITATIVE ANALYSIS
RADIATIONS
RADIOACTIVITY
REFLECTION
RESONANCE
SENSITIVITY
STANDARDS
SURFACES
XENON 134
ATOMIC MODELS
ATOMS
BETA DECAY
BETA PARTICLES
CROSS SECTIONS
ELECTRIC CHARGES
ELECTRODES
ELECTRON BEAMS
ELECTRONIC EQUIPMENT
ELECTRONS
EMISSION
ENERGY
ENERGY LEVELS
ENERGY RANGE
ERRORS
EXCITATION
GASES
GRAPHITE
HELIUM
INSTRUMENTS AND INSTRUMENTATION
IONIZATION
IONIZATION CHAMBERS
LIGHT
MEASURED VALUES
PARTICLE TRACKS
POLARIZATION
PRESSURE
QUANTITATIVE ANALYSIS
RADIATIONS
RADIOACTIVITY
REFLECTION
RESONANCE
SENSITIVITY
STANDARDS
SURFACES
XENON 134