THE DETECTION OF FAST NEUTRONS BY MEANS OF LIQUID-HEXANE-FILLED IONIZATION CHAMBERS

Journal Article · Thu Feb 28 23:00:00 EST 1963 · J. Phys.

OSTI ID:4702285

Blanc, D; Mathieu, J; Vermande, P

The use of a vacuum-tight polyethylene bag filled with hexane and inserted between the electrodes of the chamber keeps the liquid away from the walls and lowers the residual current below 5 x 10/sup -14/ A/cm/sup 2/, a value that is stable as a function of time. The ionization current is a linear function of the flux, with neutrons of 14.6 and 3 Mev, produced by D-T and D-D reactions; 85 per cent of this current is attributable to neutrons and 15 per cent to gamma photons accompanying them. The sensitivity is 400 n cm/sup -2/ s/ sup -1/ (3 Mev), 1,000 n cm/sup -2/ s/sup -1/ (14.6 Mev), 10,000 photons cm/sup - 1/ s/sup -1/ (Co/sup 60/). (auth)

• Research Organization: Centre de Physique Nucleaire, Faculte des Sciences, Toulouse
• NSA Number: NSA-17-030866
• OSTI ID: 4702285
• Journal Information: J. Phys., Journal Name: J. Phys. Vol. Vol: 24: Suppl. to No. 3
• Country of Publication: Country unknown/Code not available
• Language: French

Related Subjects

COBALT 60
CURRENTS
DETECTION
DEUTERIUM
ELECTRODES
FAST NEUTRONS
GAMMA RADIATION
HEXANE
INSTRUMENTS AND INSTRUMENTATION
IONIZATION CHAMBERS
LIQUIDS
NEUTRON FLUX
NUCLEAR REACTIONS
PHOTONS
POLYETHYLENES
SENSITIVITY
TRITIUM