Photonuclear reactions of actinide and pre-actinide nuclei at intermediate energies

Journal Article · Sat Dec 15 00:00:00 EST 2007 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.76.064610· OSTI ID:21067988

Mukhopadhyay, Tapan; Basu, D N ^[1]

---

1. Variable Energy Cyclotron Centre, 1/AF Bidhan Nagar, Kolkata 700 064 (India)

Photonuclear reaction is described with an approach based on the quasideuteron nuclear photoabsorption model followed by the process of competition between light particle evaporation and fission for the excited nucleus. Thus fission process is considered as a decay mode. The evaporation-fission process of the compound nucleus is simulated in a Monte Carlo framework. Photofission reaction cross sections are analysed in a systematic manner in the energy range {approx}50-70 MeV for the actinides {sup 232}Th, {sup 233}U, {sup 235}U, {sup 238}U, and {sup 237}Np and the pre-actinide nuclei {sup 208}Pb and {sup 209}Bi. The study reproduces satisfactorily well the available experimental data of photofission cross sections at energies {approx}50-70 MeV and the increasing trend of nuclear fissility with the fissility parameter Z{sup 2}/A for the actinides and pre-actinides at intermediate energies ({approx}20-140 MeV)

• OSTI ID: 21067988
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 76, Issue 6; Other Information: DOI: 10.1103/PhysRevC.76.064610; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BISMUTH 209 TARGET
COMPOUND NUCLEI
COMPUTERIZED SIMULATION
CROSS SECTIONS
EVAPORATION MODEL
LEAD 208 TARGET
MEV RANGE
MONTE CARLO METHOD
NEPTUNIUM 237 TARGET
NUCLEAR DECAY
PHOTOFISSION
THORIUM 232 TARGET
URANIUM 233 TARGET
URANIUM 235 TARGET
URANIUM 238 TARGET