Prescission and postscission charged particle emissions from the [sup 19]F+[sup 159]Tb reaction

Journal Article · Tue Feb 01 04:00:00 EST 1994 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.49.968· OSTI ID:5317345

Ikezoe, H; Nagame, Y; Nishinaka, I; Sugiyama, Y; Tomita, Y; Ideno, K; Hamada, S; Shikazono, N; Iwamoto, A ^[1]; Ohtsuki, T ^[2]

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1. Advanced Science Research Center, Japan Atomic Energy Research Institute, Tokai-mura, Ibaraki-ken 319-11 (Japan)
2. Laboratory of Nuclear Science, Tohoku University, Sendai-shi, Miyagi-ken 982 (Japan)

Prescission and postscission multiplicities of protons and [alpha] particles are measured in the [sup 19]F+[sup 159]Tb reaction. The observed prescission multiplicities are enhanced compared to statistical model predictions and the presaddle delay time of around 0.5[times]10[sup [minus]20] sec is needed to reproduce both prescission proton and [alpha] particle multiplicities. This value is too small to account for the prescission neutron data measured by Newton [ital et] [ital al]., suggesting a long saddle-to-scission time. The measured postscission multiplicities of protons and [alpha] particles indicate that fission fragments are rather colder than the statistical model predictions, but slightly hotter than the estimation from the obseved prescission and postscission neutron multiplicities.

• OSTI ID: 5317345
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 49:2; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

663470* -- Fission-- (1992-)
663570 -- Nuclear Mass Ranges-- A=150-189-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA PARTICLES
BARYONS
CHARGED PARTICLES
CHARGED-PARTICLE REACTIONS
ELEMENTARY PARTICLES
FERMIONS
FISSION
FISSION FRAGMENTS
FLUORINE 19 REACTIONS
HADRONS
HEAVY ION REACTIONS
MATHEMATICAL MODELS
MULTIPLICITY
NEUTRONS
NUCLEAR FRAGMENTS
NUCLEAR REACTIONS
NUCLEAR TEMPERATURE
NUCLEONS
PROTONS
STATISTICAL MODELS
TARGETS
TERBIUM 159 TARGET