FRAGMENT MASS DISTRIBUTIONS FOR THERMAL-NEUTRON-INDUCED FISSION OF Pu$sup 239$ AND Pu$sup 24$$sup 1$

Journal Article · Sat Mar 23 04:00:00 EST 1963 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

OSTI ID:4069764

Walter, F J; Schmitt, H W; Neiler, J H

The fragment mass distributions for thermal-neutroninduced fission of Pu/ sup 239/ and Pu/sup 241/ were determined from correlated energy measurements of fragment pairs. These mass distributions are compared with each other and with the post-neutron-emission mass yield for Pu/sup 239/ obtained from radiochemical and mass spectrometric measurements. It is shown that these comparisons are consistent with the saw-tooth character of the function nu (M) as well as with the cluster model of fission in which the stability of the closed-shell structures fundamentally influences the fragment mass and energy distribution for fission at lowexcitation energy. (auth)

• Research Organization: Oak Ridge National Lab., Tenn.
• NSA Number: NSA-18-015260
• OSTI ID: 4069764
• Journal Information: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 133; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

CLUSTER MODEL
DISTRIBUTION
EMISSION
ENERGY
EXCITATION
FISSION
FISSION PRODUCTS
MASS
MEASURED VALUES
NUCLEAR MODELS
PHYSICS
PLUTONIUM 239
PLUTONIUM 241
RADIOCHEMISTRY
REACTION KINETICS
SHELL MODELS
SPECTROMETERS
THERMAL NEUTRONS