Identification of fission-like events in the {sup 16}O + {sup 181}Ta system: Mass and isotopic yield distribution

Journal Article · Fri Jul 15 00:00:00 EDT 2011 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.84.014612· OSTI ID:21596592

Sharma, Vijay R; Yadav, Abhishek; Singh, Devendra P; Unnati,; Singh, B P; Prasad, R ^[1]; Singh, Pushpendra P ^[2]; Sharma, Manoj K ^[3]; Kumar, R; Golda, K S ^[4]; Sinha, A K ^[5]

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1. Physics Department, A. M. University, Aligarh (U.P.)-202 002 (India)
2. INFN-Laboratori Nazionali di Legnaro, I-35020 Legnaro (Italy)
3. Physics Department, S.V. College, Aligarh (U.P.) (India)
4. NP-Group: Inter University Accelerator Centre, New Delhi-110067 (India)
5. UGC-DAE-CSR, Bidhan Nagar, Kolkata-700 098 (India)

In this paper, nuclear reaction cross sections for 24 fission-like fragments (30{<=}Z{<=}60) have been measured for the 6.5 MeV/A {sup 16}O + {sup 181}Ta system. The recoil-catcher activation technique was employed followed by off-line {gamma} spectroscopy. The isotopic yield distributions for yttrium and indium isotopes have been obtained from the experimental data. The variance of the presently measured isotopic yield distributions have been found to be in agreement with the literature values. However, the variance of the mass distribution of fission residues has found to be narrower as compared to other relatively heavier systems. A self-consistent approach to determining the isobaric charge dispersion parameters has been adopted. The measured fission cross sections at 97 and 100 MeV are satisfactorily described by a statistical model code. An attempt has been made to explain the production cross sections of intermediate mass residues in the fission of heavy residues populated via complete and/or incomplete fusion processes.

• OSTI ID: 21596592
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 84, Issue 1; Other Information: DOI: 10.1103/PhysRevC.84.014612; (c) 2011 American Institute of Physics; 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
CROSS SECTIONS
DISPERSIONS
FISSION
INDIUM ISOTOPES
MASS
MASS DISTRIBUTION
MEV RANGE 10-100
OXYGEN 16
RECOILS
RESIDUES
SPECTROSCOPY
STATISTICAL MODELS
TANTALUM 181
YIELDS
YTTRIUM
DISTRIBUTION
ELEMENTS
ENERGY RANGE
EVEN-EVEN NUCLEI
HEAVY NUCLEI
ISOTOPES
LIGHT NUCLEI
MATHEMATICAL MODELS
METALS
MEV RANGE
NUCLEAR REACTIONS
NUCLEI
ODD-EVEN NUCLEI
OXYGEN ISOTOPES
SPATIAL DISTRIBUTION
STABLE ISOTOPES
TANTALUM ISOTOPES
TRANSITION ELEMENTS