Summary
Radiative neutron capture cross-sections for the isotopes51V,65Cu,69Ga,80Se,107Ag,110Pd,154Sm and198Pt have been measured at one or two neutron energies in the keV region by means of the activation method. The cross-sections for the three isotopes80Se,110Pd and198Pt are reported for the first time and in the rest of the cases a comparison is made with previously reported values. The experimental values of the cross-sections are compared with the theoretical values obtained from Margolis' formula based upon the statistical theory to extract information about the parameter ξ (=〈D〉/2π〈Гλ〉).
Riassunto
Sono state misurate le sezioni d'urto di cattura radiativa del neutrone per gli isotopi51V,65Cu,69Ga,80Se,107Ag,110Pd,154Sm e198Pt ad una o due energie dei neutroni nella regione dei keV con il metodo dell'attivazione. Si riportano per la prima volta le sezioni d'urto per i tre isotopi80Se,110Pd e198Pt e nei casi rimanenti si fa un confronto con valori precedentemente riportati. I valori sperimentali delle sezioni d'urto si confrontano con i valori teorici ottenuti dalla formula di Margolis che si basa sulla teoria statistica per ottenere informazioni sul parametro ξ (=〈D〉/2π〈Гλ〉).
Резюме
Используя активационный метод, были измерены поперечные сечения радиационного захвата нейтронов для изотопов51V,65Cu,69Ga,80Se,107Ag,110Pd,154Sm и198Pt при одной или двух энергиях нейтронов в кэВ-ной области энергии. Впервые приводятся поперечные сечения для трех изотопов80Se,110Pd и198Pt, а в осталных случаях проводится сравнение с ранее полученными результатами. Экспериментальные величины поперечных сечений сравниваются с теоретическими значениями, полученными из формул Марголиса, основанных на статистической теории, с целью получения информации о параметре ξ ξ (=〈D〉/2π〈Гλ〉).
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References
J. A. Miskel, K. V. Marsh, M. L. Linder andR. J. Nagel:Phys. Rev.,128, 2717 (1962).
A. K. Chaubey andM. L. Sehgal:Nucl. Phys.,66, 267 (1965).
A. K. Chaubey andM. L. Sehgal:Phys. Rev.,152, 1055 (1966).
S. S. Hasan, A. K. Chaubey andM. L. Sehgal:Nuovo Cimento B,58, 402 (1968).
N. D. Dudey, R. R. Henirich andA. A. Madson:J. Nucl. Energy,23, 443 (1969).
J. Alam: Ph. D. Thesis, Aligarh Muslim University, Aligarh (1973).
E. M. Burbidge, G. R. Burbidge, W. A. Fowler andF. Hoyle:Rev. Mod. Phys.,29, 547 (1957).
R. L. Macklin andJ. H. Gibbons:Phys. Rev.,159, 1007 (1967).
B. J. Allen, J. H. Gibbons andR. L. Macklin:Adv. Nucl. Phys.,4, 205 (1971).
V. Benzi andM. V. Bortolani:Nuovo Cimento,38, 216 (1965).
D. I. Garber andR. R. Kinsey: BNL-325 (1976).
S. F. Mughabghab andD. I. Garber: BNL-325, 3rd edition (1973).
B. Margolis:Phys. Rev.,88, 327 (1952).
J. Rapaport:Nucl. Data Sheets B,3, 85 (1969);R. L. Auble:Nucl. Data Sheets,16, 383 (1975);K. R. Alvar andS. Raman:Nucl. Data Sheets B,8, 1 (1972);J. F. Lemming:Nucl. Data Sheets,15, 137 (1975);F. E. Bertrand:Nucl. Data Sheets B,7, 33 (1972);S. Raman andH. J. Kim:Nucl. Data Sheets B,6, 39 (1971);L. A. Kroger andC. W. Reich:Nucl. Data Sheets,15, 409 (1975);M. B. Lewis:Nucl. Data Sheets B,6, 355 (1971).
A. E. Johnsrud, M. G. Silbert andH. H. Barschall:Phys. Rev.,116, 927 (1959).
Dovbanko et al.:At. Energ.,26, 67 (1969).
H. M. Agrawal andM. L. Sehgal:J. Phys. Soc. Jpn.,46, 1 (1979).
A. Gilbert andA. G. W. Cameron:Can. J. Phys.,43, 1146 (1965).
Neutron cross-sections, BNL-325, 2nd edition (1958) and Supplement No. 1 (1960).
Neutron cross-sections, BNL-325, Supplement No. 2 (1966), Vol. II A, B, C.
J. Julien, R. Alves, S. DeBarros, V. D. Huynh, J. Morgenstrenet andC. Samour:Nucl. Phys. A,132, 129 (1969).
H. Baba:Nucl. Phys. A,159, 625 (1970).
P. Oliva andD. Prosperi:Nuovo Cimento B,49, 161 (1967).
E. H. Auerbach andF. G. J. Perry: BNL-765 (T-285) (1962).
E. Gaioli, I. Iori, N. Molho andL. Zetta:Nucl. Phys. A,138, 321 (1969).
J. H. Gibbons, R. L. Mackin, P. D. Miller andJ. H. Neiler:Phys. Rev.,122, 199 (1961).
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Agrawal, H.M., Ansari, M.A., Wasim, M. et al. Neutron capture cross-sections in the keV energy region. Nuov Cim A 61, 141–148 (1981). https://doi.org/10.1007/BF02902447
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DOI: https://doi.org/10.1007/BF02902447