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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Bremsstrahlung-induced fission and spallation of the pre-actinide nucleus Ta-181

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Author(s):
Deppman, A. [1] ; Karapetyan, G. S. [1] ; Guimaraes, V. [1] ; Gonzales, C. [1] ; Balabekyan, A. R. [2] ; Demekhina, N. A. [3, 4]
Total Authors: 6
Affiliation:
[1] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo - Brazil
[2] Yerevan State Univ, Fac Phys, Yerevan 0025 - Armenia
[3] Yerevan Phys Inst, Yerevan 0036 - Armenia
[4] Joint Inst Nucl Res, Flerov Lab Nucl React LNR, Dubna 141980, Moscow Region - Russia
Total Affiliations: 4
Document type: Journal article
Source: Physical Review C; v. 91, n. 2 FEB 27 2015.
Web of Science Citations: 3
Abstract

A study of photofission on Ta-181 induced by bremsstrahlung with endpoint energies of 50 and 3500 MeV has been performed. The fission yields have been measured by using the induced-activity method in an off-line analysis. The total photofission yields for the tantalum target at 50 and 3500 MeV are found to be 5.4 +/- 1.1 mu b/equivalent quanta per second (eq.q) and 0.77 +/- 0.11 mb/eq.q, respectively, and the corresponding deduced fissilities are (0.23 +/- 0.05) x 10(-3) and (2.9 +/- 0.5) x 10(-3). Mass- and charge-yield distributions were derived from the data. The results were compared with the simulated results from the CRISP code for multimodal fission by the assuming symmetrical fission mode. (AU)

FAPESP's process: 14/00284-1 - Production of isomeric states in the deuteron-induced reaction of gold and lead at high-energies
Grantee:Gayane Karapetyan
Support Opportunities: Scholarships abroad - Research Internship - Post-doctor
FAPESP's process: 11/00314-0 - Elastic scattering reactions and transfer induced by light exotic nuclei
Grantee:Gayane Karapetyan
Support Opportunities: Scholarships in Brazil - Post-Doctorate