Nuclear Physics and Atomic Energy

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Nuclear Physics and Atomic Energy

  ISSN: 1818-331X (Print), 2074-0565 (Online)
  Publisher: Institute for Nuclear Research of the National Academy of Sciences of Ukraine
  Languages: Ukrainian, English, Russian
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Nucl. Phys. At. Energy 2016, volume 17, issue 2, pages 138-142.
Section: Nuclear Physics.
Received: 04.02.2016; Accepted: 29.06.2016; Published online: 10.08.2016.
PDF Full text (ua)
https://doi.org/10.15407/jnpae2016.02.138

Analysis of photoneutron cross section accuracy obtained at quasimonochromatic gamma-beams

V. M. Mazur, Z. M. Bigan, P. S. Derechkey*, I. Yu. Seyka, V. V. Grinyov, S. I. Luchkan

Institute of Electron Physics, National Academy of Sciences of Ukraine, Uzhhorod, Ukraine

*Corresponding author. E-mail address: derecskei89@gmail.com

Abstract: Using gamma-spectroscopic methods, comparative measurements of (γ, n) reaction yields on the isotopes 140Се and 142Се were carried out in the energy region of 9 - 18 MeV using gamma-quanta. It was shown, that for the isotopes of Cerium using the quasimonochromatic beams of photons [1] the error of the measurement of the (γ, n) reaction cross section due to the contribution of the (γ, 2n) reaction did not exceed 2%.

Keywords: nuclear reaction cross section, gamma-quanta, 140Ce, 142Ce, microtron.

References:

1. S.S. Dietrich, B.L. Berman. Atlas of photoneutron cross sections obtained with monoenergetic photons. Atom. Data and Nucl. Data Tables 38 (1988) 1998. https://doi.org/10.1016/0092-640X(88)90033-2

2. A.V. Varlamov, V.V. Varlamov, P.S. Stepanenko et al. Atlas of Giant Dipole Resonances, IAEA, INDS(NDS)-394 (Austria, Vienna, 1999). INIS

3. B.L. Berman, S.S. Fultz. Measurements of the giant dipole resonance with monoenergetic photons. Rev. Mod. Phys. 47 (1975) 713. https://doi.org/10.1103/RevModPhys.47.713

4. E. Wolynec, A.R.V. Martinez, P. Gouffon et al. Comment on photoneutron cross sections. Phys. Rev. C 29 (1984) 1137. https://doi.org/10.1103/PhysRevC.29.1137

5. E. Wolynec, M.N. Martins. Discrepancies between Saclay and Livermore Photoneutron Cross Sections. Revista Brasileira de Fisica 17 (1987) 56. http://sbfisica.org.br/bjp/download/v17/v17a05.pdf

6. V.V. Varlamov, N.N. Peskov, D.S. Rudenko, M.E. Stepanov. Consistent evaluation of photoneutron reaction cross sections using data obtained in experiments with quasimonoenergetic annihilation photon beams at Livermore (USA) and Saclay (France). IAEA, INDC(CCP)-440 (Austria, Vienna, 2004) p. 37. https://www-nds.iaea.org/publications/indc/indc-ccp-0440.pdf

7. C. Nair et al. Dipole strength in 144Sm studied via (γ,n), (γ,p) and (γ,α) reactions. Phys. Rev. C 81 (2010) 055806. https://doi.org/10.1103/PhysRevC.81.055806

8. M. Arnould, S. Goriely. The p-process of stellar nucleosynthesis: astrophysics and nuclear physics status. Phys. Rep. 384 (2009) 1. https://doi.org/10.1016/S0370-1573(03)00242-4

9. B.L. Berman, R.E. Pywell, S.S. Dietrich et al. Absolute photoneutron cross sections for Zr, I, Pr, Au, and Pb. Phys. Rev. C 36 (1986) 1286. https://doi.org/10.1103/PhysRevC.36.1286

10. C. Plaisir, F. Hanuachi, F. Gobet et al. Measurement of the 85Rb(γ,n)84mRb cross-section in the energy range 10-19 MeV with bremsstrahlung photons. Eur. Phys. J. A 48 (2013) 68. https://doi.org/10.1140/epja/i2012-12068-7

11. A. Sauerwein, K. Sonnabend, M. Fritzshe et al. Determination of the 142Ce(γ,n) cross section using quasi-monoenergetic Compton backscattered γ rays. Phys. Rev. C 89 (2014) 035803. https://doi.org/10.1103/PhysRevC.89.035803

12. D.M. Filipescu, I. Gheorghe, H. Utsunomiya et al. Photoneutron cross sections for samarium isotopes: Toward a unified understanding of (γ,n) and (n,γ) reactions in the rare earth region. Phys. Rev. C 90 (2014) 064616. https://doi.org/10.1103/PhysRevC.90.064616

13. B.S. Ishkhanov, V.N. Orlin, S.Yu. Troschiev. Photodisintegration of tantalum. Phys. of Atomic Nuclei. 75 (2012) 253. https://doi.org/10.1134/S1063778812020093

14. V.V. Varlamov, B.S. Ishkhanov, V.N. Orlin et al. A new approach for analysis and evaluation of partial photoneutron reaction cross sections. Eur. Phys. J. A 50 (2014) 114. https://doi.org/10.1140/epja/i2014-14114-x

15. A. Lepretre, H. Beil, R. Bergere et al. A study of the giant dipole resonance in doubly even tellurium and cerium isotopes. Nucl. Phys. A 258 (1976) 350. https://doi.org/10.1016/0375-9474(76)90011-7

16. O.V. Bogdankevich, F.A. Nikolaev. Methods in Bremsstrahlung Research (New York: Academic Press, 1996). Google Books

17. V.M. Mazur, D.M. Symochko, Z.M. Bigan, T.V. Poltorzhytska. Excitation of the 119Tem, 121Tem, 123Tem, 127Tem, and 129Tem isomers in (γ,n) reactions from 10 to 22 MeV. Phys. Rev. C 87 (2014) 044604. https://doi.org/10.1103/PhysRevC.87.044604

18. R.B. Firestone, V.S. Shirley (eds.). Table of Isotopes. 8th edition (New York: Wiley, 1996). http://www.wiley.com/legacy/products/subject/physics/toi/