Abstract.
The mass-yield distribution of fission products in the 2.5GeV bremsstrahlung-induced fission of natPb has been measured by using a recoil catcher and an off-line \( \gamma\) -ray spectrometric technique in the 2.5GeV electron linac at the Pohang Accelerator Laboratory. The determination of mass-yield distribution involves measurement of cumulative yields of 27 fission products and independent yields of 15 fission products in the photo-fission of natPb . It was found that the mass-yield distribution of fission products in natPb is symmetric with an average mass of 94±0.5 and a full-width at half-maximum of 55±2.0 mass units. The present data along with the literature data in the 50-85MeV bremsstrahlung-induced fission of natPb and 209Bi as well as the data at 2.5GeV for 209Bi show that the average mass of the mass-yield distributions in the bremsstrahlung-induced fission of natPb and 209Bi decreases from 102.63±0.51 at 50-85MeV to 94.5±0.5 at 2.5GeV. The full-width at half-maximum of the mass-yield distribution increases from about 21.5±1.44 mass units at 50-85MeV to 53±2 mass units at 2.5GeV. These observations in the 50MeV to 2.5GeV bremsstrahlung-induced fission of natPb and 209Bi have been explained from the point of view of increase in multi-chance fission probability with increasing excitation energy. The role of the fissility parameter (Z F 2/A F) on the full-width at half-maximum is also discussed.
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References
C. Wagemans, The Nuclear Fission Process (CRC Press, London, 1990)
R. Vandenbosch, J.R. Huizenga, Nuclear Fission (Academic Press, New York, 1973)
E.K. Hyde, The Nuclear Properties of the Heavy Elements, Vol. III: Fission Phenomenon (Dover Publication, Inc., New York, 1971)
R.H. Iyer, C.K. Mathews, N. Ravindran, K. Rengan, D.V. Singh, M.V. Ramaniah, H.D. Sharma, J. Inorg. Nucl. Chem. 25, 465 (1963)
R.S. Iyer, H.C. Jain, M.N. Namboodiri, M. Rajagopalan Rajkishore, M.V. Ramaniah, C.L. Rao, H.D. Sharma, 1st Conference on Physics and Chemistry of Fission, Vol. 1 (IAEA, Vienna, 1965) p. 439
M.N. Namboodiri, N. Ravindran, M. Rajagopalan, M.V. Ramaniah, J. Inorg. Nucl. Chem. 30, 2305 (1968)
R. Stella, L.G. Moretto, V. Maxia, M. Di Casa, V. Crespi, M.A. Rollier, J. Inorg. Nucl. Chem. 31, 3739 (1969)
W.A. Myers, M.V. Kantelo, R.L. Osborne, A.L. Prindlen, D.R. Nethaway, Phys. Rev. C 18, 1700 (1978)
H.N. Erten, A.Grutter, E. Rossler, H.R. von Gunten, Nucl. Sci. Eng. 79, 167 (1981)
R.A. Sigg, M.V. Kantelo, D.H. Sisson, A.L. Prindle, D.R. Nethaway, Phys. Rev. C 27, 245 (1983)
H. Naik, A.G.C. Nair, P.C. Kalsi, A.K. Pandey, R.J. Singh, A. Ramaswami, R.H. Iyer, Radiochim. Acta. 75, 51 (1996)
R.H. Iyer. H. Naik, A.K. Pandey, P.C. Kalsi, R.J. Singh, A.Ramaswami, A.G.C. Nair, Nucl. Sci. Eng. 135, 227 (2000)
K. Persyn, E. Jacobs, S. Pomme, D. De Frenne, K. Govaert, M.-L. Yoneama, Nucl. Phys. A 615, 198 (1997)
S. Pommé, Nucl. Phys. A 572, 237 (1994)
M. Piessens, E. Jacobs, S. Pommé, Nucl. Phys. A 556, 88 (1993)
E. Jacobs, H. Thierens, D. De Frenne, A. De Clercq, P. D’hondt, P. De Gelder, A. J. Deruytter, Phys. Rev. C 21, 237 (1980)
E. Jacobs, H. Thierens, A. De Frenne, A. De Clercq, P. D’hondt, P. De Gelder, A.J. Deruytter, Phys. Rev. C 19, 422 (1979)
A. Chattopadhya, K.A. Dost, I. Krajbich, H.D. Sharma, J. Inorg. Nucl. Chem. 35, 2621 (1973)
U. Brosa, S. Grossmann, A. Müller, Phys. Rep. 197, 167 (1990)
B.D. Wilkins, E.P. Steinberg, R.R. Chasman, Phys. Rev. C 14, 1832 (1976)
M.G. Itkis, V.N. Okolovich, G.N. Smirenkin, Nucl. Phys. A 502, 243 (1989)
R. Tripathi, K. Sudarshan, A.Goswami, P.K. Pujari, B.S. Tomar, S.B. Manohar, Phys. Rev. C 69, 024613 (2004)
S. Singh, A. Matre, J. Radioanal. Nucl. Chem. 279, 547 (2009)
L.M. Panth, R.K. Choudhury, A. Saxena, D.C. Biswas, Eur. Phys. J. A. 11, 47 (2001)
S.S. Rattan, A. Ramaswami, S.B. Manohar, J. Radioanal. Nucl. Chem. 242, 551 (1999)
S.S. Rattan, A. Ramaswami, Radiochim. Acta 65, 9 (1997)
S.S. Rattan, A. Ramaswami, R.J. Singh, S. Prakash, Radiochim. Acta 55, 169 (1991)
S.S. Rattan, R.J. Singh, Radiochim. Acta 38, 69 (1985)
F. Plasil, D.S. Burnett, H.C. Britt, S.G. Thompson, Phys. Rev. 142, 696 (1966)
J.P. Unik, J.R. Huizenga, Phys. Rev. 134, B90 (1964)
R. Vandenbosch, J.R. Huizenga, Phys. Rev. 127, 212 (1962)
H.C. Britt, H.E. Wegner, J. Gursky, Phys. Rev. Lett. 8, 98 (1962)
H.C. Britt, H.E. Wegner, J.C. Gursky, Phys. Rev. 129, 239 (1963)
A.W. Fairhall, Phys. Rev. 102, 335 (1956)
R.H. Goeckerman, I. Perlman, Phys. Rev. 76, 628 (1949)
P. Kruger, N. Sugarman, Phys. Rev. 99, 1459 (1955)
L.G. Jodra, N. Sugarman, Phys. Rev. 99, 1470 (1955)
N. Sugarman, M. Campos, K.Wielgoz, Phys. Rev. 101, 388 (1956)
R. Wolfgang, E.W. Baker, A.A. Caretto, J.B. Cumming, G. Friedlander, J. Hudis, Phys. Rev. 103, 394 (1956)
T.T. Sugihara, J. Roesmer, J.W. Meadows jr., Phys. Rev. 121, 1179 (1961)
J.A. Panontin, N.T. Proile, J. Inorg. Nucl. Chem. 30, 2891 (1968)
F. Plasil, R.L. Ferguson, F. Pleasonton, H.W. Schmidt, Phys. Rev. C 7, 118 (1973)
E. Hagebo, T. Lund, J. Inorg. Nucl. Chem. 37, 1569 (1975)
M.C. Duijvestijn, A.J. Koning, J.P.M. Beijers. A. Ferrari, M. Gastal, J. van Klinken, R.W. Ostendorf, Phys. Rev. C 59, 776 (1999)
B. Fernandez-Dominguez, P. Arambruster, L. Audouin, J. Benlliure, M. Bernas, A. Boudard, E. Casarejos, S. Czajkowski, J.E. Ducret, T. Enqvist, B. Jurado, R. Legrain, S. Leray, B. Mustapha, J. Pereiva, M. Pravikoff, F. Rejmund, M.V. Riceirdi, K.-H. Schmidt, C. Stephan, J. Taieb, L. Tassan-Got, C. Volant, W. Wlazlo, Nucl. Phys. A 747, 227 (2005)
T. Enqvist, W. Wlazlo, P. Arambruster, J. Benlliure, M. Bernas, A. Boudard, S. Czajkowski, R. Legrain, S. Leray, B. Mustapha, M. Pravikoff, F. Rejmund, K.-H. Schmidt, C. Stephan, J. Taieb, L. Tassan-Got, C. Volant, Nucl. Phys. A 686, 481 (2001)
T. Enqvist, P. Arambruster, J. Benlliure, M. Bernas, A. Boudard, S. Czajkowski, R. Legrain, S. Leray, B. Mustapha, M. Pravikoff, F. Rejmund, K.-H. Schmidt, C. Stephan, J. Taieb, L. Tassan-Got, F. Vives, C. Volant, W. Wlazlo, Nucl. Phys. A 703, 431 (2002)
N. Sugarman, Phys. Rev. 79, 532 (1950)
R.V. Warnock, R.C. Jensen, J. Inorg. Nucl. Chem. 30, 2011 (1968)
B. Schroder, G. Nydahl, B. Forkman, Nucl. Phys. A 143, 449 (1970)
A.P. Komar, B.A. Bochagov, A.A. Kotov, Yu.N. Ranyuk, G.G. Semenchuk, G.E. Solyakin, P.V. Sorkin, Sov. J. Nucl. Phys. 10, 30 (1970)
M. Areskoug, B. Schroder, K. Lindgren, G. Anderrson, B. Beckman, Nucl. Phys. A 226, 93 (1974)
M. Areskoug, B. Schroder, K. Lindgren, Nucl. Phys. A 251, 418 (1975)
H. Naik, A.V.R. Reddy, S. Ganesan, D. Raj, K. Kim, G. Kim, Y.D. Oh, D.K. Pham, M.H. Cho, I.S. Ko, W. Namkung, J. Korean Phys. Soc. 52, 934 (2008)
H. Naik, S. Singh, A.V.R. Reddy, V.K. Manchanda, S. Ganesan, D. Raj, Md. Shakilur Rahman, K.S. Kim, M.W. Lee, G. Kim, Y.D. Oh, H.-S. Lee, M.-H. Cho, I.S. Ko, W. Namkung, Eur. Phys. J. A 41, 323 (2009)
H. Naik, S. Singh, A.V.R. Reddy, V.K. Manchanda, G. Kim, K.S. Kim, M.W. Lee, S. Ganesan, D. Raj, H.-S. Lee, Y.D. Oh, M.-H. Cho, I.S. Ko, W. Namkung, Nucl. Instrum. Methods B 267, 1891 (2009)
H. Naik, G. Kim, A. Goswami, S. Singh, V.K. Manchanda, D. Raj, S. Ganesan, Y.D. Oh, H.S. Lee, K.S. Kim, M.W. Lee, M.H. Cho, I.S. Ko, W. Namkung, J. Radioanal. Nucl. Chem. 283, 439 (2010)
E. Browne, R.B. Firestone, Table of Radioactive Isotopes (John Wiley & Sons, New York, 1986)
J. Blachot, Ch. Fiche, Ann. Phys. 6, 3 (1981)
L.G. Moretto, R.C. Gatti, S.G. Thompson, J.T. Routti, J.H. Heisenberg, L.M. Middleman, M.R. Yearian, R. Hofstadter, Phys. Rev. 179, 1176 (1969)
C.F. Weizsäcker, Z. Phys. 88, 612 (1934)
E.J. Williams, Phys. Rev. 45, 729 (1934)
H. Naik, S.P. Dange, A.V.R. Reddy, Nucl. Phys. A 781, 1 (2007)
J.S. Forster, I.V. Mitchell, J.U. Anderson, A.S. Jenson, E. Laegsgard, W.M. Gibson, K. Reichett, Nucl. Phys. A 464, 497 (1987)
S.I. Mulgin, K.-H. Schmidt, A. Grewe, S.V. Zhdanov, Nucl. Phys. A 640, 375 (1998)
J. Benlliure, A. Grewe, M. De Jong, K.-H. Schmidt, S.V. Zhdanov, Nucl. Phys. A 628, 458 (1998)
J.R. Nix, Nucl. Phys. A 130, 241 (1969)
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Naik, H., Singh, S., Goswami, A. et al. Mass-yield distribution of fission products from photo-fission of natPb induced by 2.5 GeV bremsstrahlung. Eur. Phys. J. A 47, 37 (2011). https://doi.org/10.1140/epja/i2011-11037-0
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DOI: https://doi.org/10.1140/epja/i2011-11037-0