Neutron multiplicities and yields of correlated Zr-Ce and Mo-Ba fragment pairs in spontaneous fission of [sup 252]Cf

Journal Article · Mon Sep 12 04:00:00 EDT 1994 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.73.1477· OSTI ID:7203806

Ter-Akopian, G M; Hamilton, J H; Oganessian, Y T; Kormicki, J; Popeko, G S; Daniel, A V; Ramayya, A V; Lu, Q; Butler-Moore, K; Ma, W; Deng, J K; Shi, D; Kliman, J; Polhorshy, V; Morhac, M; Greiner, W; Sandelescu, A; Cole, J D; Aryaeinejad, R; Johnson, N R ; Lee, I Y; McGowan, F K ^[1]

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1. Joint Institute for Nuclear Research; Dubna; 141980 (Russian Federation) Physics Department; Vanderbilt University; Nashville; Tennessee 37235 (United States) Institute of Physics SASc; Bratislava; (Slovakia) Joint Institute for Heavy Ion Research; Oak Ridge; Tennessee 37831 (United States) Institute for Theoretical Physics; J. W. Goethe University; D-660054 Frankfurt (Germany) Institute for Atomic Physics; Bucharest (Romania) Idaho National Engineering Laboratory; Idaho Falls; Idaho 83415 (United States) Oak Ridge National Laboratory; Oak Ridge; Tennessee 37831 (United States)

High resolution [gamma]-[gamma] and [gamma]-[gamma]-[gamma] coincidences in the spontaneous fission of [sup 252]Cf were measured. Relative yields and neutron multiplicities from zero up to 10 were extracted directly for the first time in fission for the Zr-Ce and Mo-Ba correlated fragments pairs. The 0, 8, and the new 10 neutron emission yields for Mo-Ba are significantly larger than those reported previously for total [sup 252]Cf spontaneous fission. Our results demonstrate that the use of this high resolution [gamma]-[gamma]-[gamma] coincidence technique can provide important, previously inaccessible data on fission.

• DOE Contract Number: FG05-88ER40407; AC07-76ID01570; FG05-87ER40361; AC05-84OR21400
• OSTI ID: 7203806
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 73:11; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALKALINE EARTH ISOTOPES
ALPHA DECAY RADIOISOTOPES
BARIUM 137
BARIUM ISOTOPES
BARYONS
BOSONS
CALIFORNIUM 252
CALIFORNIUM ISOTOPES
CERIUM 140
CERIUM ISOTOPES
COINCIDENCE METHODS
COINCIDENCE SPECTROMETRY
CORRELATIONS
COUNTING TECHNIQUES
DECAY
ELEMENTARY PARTICLES
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FERMIONS
FISSION
FISSION FRAGMENTS
HADRONS
HEAVY NUCLEI
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MASSLESS PARTICLES
MINUTES LIVING RADIOISOTOPES
MOLYBDENUM 96
MOLYBDENUM ISOTOPES
MULTIPLICITY
NEUTRONS
NUCLEAR DECAY
NUCLEAR FRAGMENTS
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
PHOTONS
RADIOISOTOPES
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
SPONTANEOUS FISSION
SPONTANEOUS FISSION RADIOISOTOPES
STABLE ISOTOPES
YEARS LIVING RADIOISOTOPES
ZIRCONIUM 91
ZIRCONIUM ISOTOPES