Abstract
Mass distribution of fission products has been determined in \(\upalpha +^{\mathrm {232}}\hbox {Th}\) reaction at \(E_{\mathrm {lab}}=36.2\) MeV using \(\upalpha \) particles from the cyclotron at the Variable Energy Cyclotron Centre (VECC), Kolkata. Yields of 64 fission products having half-lives in the range of about \(\sim 1\) min to several days have been measured using gamma ray spectrometry. The mass distribution shows a clear triple humped structure indicating the contribution from both asymmetric and symmetric modes of fission. The experimental mass distribution was well reproduced by the calculation from the GEF code, which takes into account the multi-chance fission.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
Data Availability Statement
This manuscript has no associated data or the data will not be deposited. [Authors’ comment: All the relevant data including the representative gamma-ray spectra supporting the findings of the present study are given in the paper. Additional data such as gamma-ray spectra or other details can be provided by the corresponding author on request.]
References
L. Meitner, O.R. Frisch, Nature 143, 239 (1939)
N. Bohr, J.A. Wheeler, Phys. Rev. 56, 426 (1939)
S. Frankel, N. Metropolis, Phys. Rev. 72, 914 (1947)
V.M. Strutinsky, Nucl. Phys. A 95, 420 (1967)
A.S. Newton, Phys. Rev. 75, 209 (1949)
P.R. O’Connor, G.J. Seaborg, Phys. Rev. 74, 1189 (1948)
R.H. Goeckermann, I. Perlman, Phys. Rev. 76, 628 (1949)
T.C. Roginski, M.E. Davis, J.W. Cobble, Phys. Rev. C 4, 1361 (1971)
A. Chakrabarti, S.K. Saha, T. Mukhopadhyay, A. Bandyopadhyay, A. Roy, C. Bhattacharya, S.K. Basu, Z. Bikash Sinha, Phys. A 345, 401 (1993)
R. Guin, S.M. Sahakundu, S.B. Manohar, Satya Prakash, M.V. Ramaniah, Radiochimica Acta 48, 7 (1989)
A. Chaudhuri, T.K. Ghosh, K. Banerjee, S. Bhattacharya, C. Jhilam Sadhukhan, Bhattacharya S. Kundu, J.K. Meena, G. Mukherjee, R. Pandey, T.K. Rana, P. Roy, T. Roy, V. Srivastava, Phys. Rev. C 91, 044620 (2015)
K. Hirose et al., Phys. Rev. Lett. 119, 222501 (2017)
Y. Nagame et al., Radiochimica Acta 78, 3 (1997)
P. Moller et al., Nature 409, 785 (2001)
A. Turkevich, J.B. Niday, Phys. Rev. 84, 52 (1951)
A. Chakrabarti, D.P. Chowdhury, S. Gangadharan, J. Arunachalam, R.M. Iyer, Nucl. Inst. Methods A 263, 421 (1988)
K.H. Schmidt, B. Jurado, C. Amouroux, C. Schmitt, Nuclear Data Sheets 131, 107 (2016)
J.F. Ziegler, J.P. Biersack, TRIM code, SRIM-2013
https://www.nndc.bnl.gov/. Accessed Aug 2016
P.K. Mukhopadhyay, in Proceedings of Symposium on Intelligent Nuclear Instrumentation, Mumbai, vol. 33 (2001), p. 307
P.K. Mukhopadhyay, INIS Repos. 33, 33001318 (2001)
R. Tripathi, S. Sodaye, K. Sudarshan, R. Guin, Phys. Rev. C 88, 024603 (2013)
R. Tripathi, S. Sodaye, K. Ramachandran, S.K. Sharma, P.K. Pujari, Int. J. Mod. Phys. E 27, 1850010 (2018)
T.N. Nag, R. Tripathi, S. Sodaye, K. Sudarshan, K. Ramachandran, B.K. Nayak, P.K. Pujari, Phys. Rev. C 96, 044608 (2017)
H. Umezawa, S. Baba, H. Baba, Nucl. Phys. A 160, 65 (1971)
E.M. Kozulin, A.Ya. Rusanov, G.N. Smirenkin, Phys. At. Nucl. 56, 166 (1993)
H.H. Rossner, J.R. Huizenga, W.U. Schröder, Phys. Rev. Lett. 53, 38 (1984)
W.J. Swiatecki, J. Phys. (Paris) 33, C5–45 (1972)
A. Gavron, Phys. Rev. C 21, 230 (1980)
Acknowledgements
The authors would like to thank Shri P. S. Chakraborty and operations team of K130 Cyclotron at VECC for their contribution in beam-delivery for the experiments.
Author information
Authors and Affiliations
Corresponding author
Additional information
Communicated by Jose Benlliure.
Rights and permissions
About this article
Cite this article
Banerjee, D., Nag, T.N., Tripathi, R. et al. Mass distribution in 36.2 MeV alpha induced fission of \(^{232}\hbox {Th}\). Eur. Phys. J. A 56, 201 (2020). https://doi.org/10.1140/epja/s10050-020-00200-1
Received:
Accepted:
Published:
DOI: https://doi.org/10.1140/epja/s10050-020-00200-1