Skip to main navigation menu Skip to main content Skip to site footer

EXCITATIONS OF ISOMER STATES OF 89m,gZr IN THE REACTIONS (,n) AND (n,2n) ON THE 90Zr NUCLEUS

Abstract

The cross sections for the formation of isomeric states in the reactions (γ, n) and (n, 2n) on the 90Zr. nuclei were measured by the induced activity method. The energy dependences of the isomeric ratio of the yields of reactions (γ, n) in the energy range of 14-35 MeV with a step of 1 MeV are obtained. The experimental results are compared with the data of other works and the TALYS-1.6 calculation.

 

Keywords

nuclear reactions, isomeric ratios, bremsstrahlung, radioactivity, cross section, activity, isomer, nucleus.

DOWNLOAD PDF CERTIFICATE

References

  1. A.S. Danagulyan, G.H. Hovhannisyan, T.M. Bakhshiyan, R.H. Avagyan, A.E. Avetisyan, I.A. Kerobyan, R.K. Dallakyan. Physics of Atomic Nuclei 78, No.4, 447 (2015).
  2. V.M. Mazur. Fiz. Elem. Chastits At. Yadra 31, No.2, 1043 (2000); [Phys. Part. Nucl. (Engl. Transl.) 31, No.2, 188 (2000)].
  3. S.R. Polvonov. J. Nucl. Phys. 90, No.5, 567 (2013).
  4. http://www.inp.uz.
  5. R.B. Firestone, V.S. Shirley, C.M. Baglin, Table of isotopes CD-ROM, 8-th Ed. (1996).
  6. R. Vänska, R. Rieppo. The experimental isomeric cross-sections ratio in the nuclear activation technique. Nucl. Instrum. Methods 179, 525-532 (1981).
  7. Hoang Dac Luc, Tran Duc Thiep, Truong Thi An, Phan An. Isomeric yield ratios in the production of Sm-143, Nd-141, Zr-89 and Pd-109 by 15 - 20 MeV bremsstrahlung. Bulgarian J.of Physics, 1987, Vol. 14, part 2, p.15.
  8. Kato T. – J. Radioanal. Chem., 1973, v.16, N1, p.307.
  9. Antonov A.D., Balabanov N.P., Belov A.G., Kondev F.G., Peres G., Tonchev A.P., Khristov Kh.G. //Isomeric ratios in the reaction (gamma, n) for nuclei in the range A=70–125// Conf.Nucl.Spectroscopy Nucl.Struct., Minsk 1991.
  10. Palvanov S.R., Razhabov O. Isomeric yield ratios of photonuclear reactions Eg-max 25 and 30 MeV. Atomnaya Energiya v.87, p.75, – 1999.
  11. Demekhina N.A., Danagulyan A.S., Karapetyan G.S. Isomeric ratio analysis in (gamma,n) and (gamma,p) reactions at giant-resonance energy range. Yadernaya Fizika, 2002, vol.65, part 2, p.390.
  12. A.J. Koning, S. Hilaire, M.C. Duijvestijn TALYS-1.0. Proc. of the Int. Conf. on Nuclear Data for Science and Technology. Eds. O. Bersillon, F. Gunsing, E. Bauge, R. Jacqmin, S. Leray ND 2007 (Nice, France April 22 -27, 2007). EDP Sciences 211-214 (2008).
  13. www.talys.eu
  14. Filatenkov A.A., Chuvaev S.V., Aksenov V.N. and Jakovlev V.A. Systematic measurement of activation cross sections at neutron energies from 13.4-14.9 MeV.
  15. Sothras S.L., Salaita G.N. (n,2n) cross sections at 14.8-MeV on some closed shell nuclides. //Journal of Inorganic and Nuclear Chemistry. V.40, pp.585. 1978.

Downloads

Download data is not yet available.