COMPARISON OF THE KINETIC ENERGIES OF FISSION FRAGMENTS OF U-238 PRODUCED BY 3- AND 15-MEV NEUTRONS

Journal Article · Thu Feb 01 04:00:00 EST 1962 · Atomnaya Energ.

OSTI ID:4801924

Baranov, I A; Protopopov, A N; Eismont, V P

An attempt was made to determine whether the kinetic energy of fission fragments is dependent on the level of excitation of the fissioning nueleus. Neutrons with energies of 3 and 15 Mev were generated by the D(d,n)He/sup 3/ and T(d,n)He/sup 4/ reactions, respeetlvely. A 45o microgram/cm/sup 2/ natural U target was used, determining the energy of the fission fragments with a double ionization chamber and recording simultaneously the pulse amplitudes resulting from the fragment pairs. For each mass ratio the energy distribution and the highest probable kinetic energy of the 2 fragments were determined. It was found that for mass ratios of 1.25 to 1.65 the highest energy is obtained with 3-Mev neutrons. The relatively small differences indicate that the kinetic energy is obtained at the expense of the Coulomb repulsion forces as the distance between charge centers does not change with the excitation level. The data do not agree with the results of the calorimetric study of P. Stevenson et al. (Phys. Rev., 117: 186(1960)). (TTT)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-16-013968
• OSTI ID: 4801924
• Journal Information: Atomnaya Energ., Journal Name: Atomnaya Energ. Vol. Vol: 12
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

BEAMS
DEUTERIUM
DEUTERON BEAMS
DISTRIBUTION
ENERGY
ENERGY RANGE
EXCITATION
FAST NEUTRONS
FISSION
FISSION PRODUCTS
HELIUM 3
HELIUM 4
IONIZATION CHAMBERS
KINETIC ENERGY
MEV RANGE
NEUTRON SOURCES
NUCLEAR REACTIONS
PHYSICS
TRITIUM
TRITON BEAMS
TRITONS
URANIUM 238