Budnik A.P., Lunev V.P.
A.I. Leypunsky Institute for Physics and Power Engineering, Obninsk, Russia
There is no data on charged particle spectra for the energies of incoming neutrons below 20 MeV in the files of most international libraries of neutron nuclear data for nitrogen nuclei, such as ROSFOND, JENDL, ENDF/b. The spectra of charged particles and the spectra of recoil nuclei from neutron-nitrogen interaction reactions may be of interest for clarifying the ionization of air by intense neutron fluxes. Such refinements may be essential for a number of applied tasks related to the neutron high-flux plants.
The paper presents the results of calculations of the energy spectra of charged particles and recoil nuclei in the interaction of neutrons with nitrogen nuclei. Calculations were carried out using the THALYS software package. The results of calculations of integral cross sections of proton and alpha particle outputs are compared with the available experimental data and recommended neutron data from the ENDF/b-VII and ROSFOND libraries.
1. Chadwick M.B., et al. ENDF/B-VII.1 Nuclear Data for Science and Technology: Cross Sections, Covariances, Fission Product Yields and Decay Data. Nuclear Data Sheets, 2011, vol. 112, no. 12, pp. 2887–2996. DOI: 10.1016/j.nds. 2011.11.002.
2. Zabrodskaya S.V., Ignatyuk A.V., Koshcheev V.N., Manokhin V.N., Nikolaev M.N., Pronyaev V.G. Natsionalʹnaya Biblioteka Otsenennykh Neytronnykh Dannykh. [RUSFOND – Russian National Library of Evaluated Neutron Data]. Voprosy atomnoy nauki i tekhniki. Seriya: Yadernyye konstanty – Problems of Atomic Science and Technology. Series: Nuclear Constants, 2007, iss. 1–2, pp. 3–21. Available at: https://vant.ippe.ru/year2007/1-2/1501-1.html (accessed 20.05.2022).
3. Koning A.J., Hilaire S., and Duijvestijn M.C. TALYS-1.8 A nuclear reaction program. User Manual. 2015. 535 p. Доступно на: http://www.talys.eu (дата обращения 20.05.2022).
4. Capote R., Herman M., Oblozinsky P., Young P.G., Goriely S., Belgya T., Ignatyuk A.V., Koning A.J., Hilaire S., Plujko V., Avrigeanu M., Bersillon O., Chadwick M.B., Fukahori T., Kailas S., Kopecky J., Maslov V.M., Reffo G., Sin M., Soukhovitskii E., Talou P., Yinlu H., and Zhigang G. RIPL – Reference Input Parameter Library for Calculation of Nuclear Reactions and Nuclear Data Evaluation. Nuclear Data Sheets, 2009, vol. 110, p. 3107. DOI: 10.1016/j.nds.2009.10.004.
5. Raynal J. Notes on ECIS94, CEA Saclay Report, 1994, No. CEA-N-2772.
6. Koning A.J. and Delaroche J.P. Local and global nucleon optical models from 1 keV to 200 MeV. Nuclear Physics, 2003, vol. A713, pp. 231–310. DOI: 10.1016/S0375-9474(02)01321-0.
7. Watanabe S. High Energy Scattering of Deuterons by Complex Nuclei. Nuclear Physics, 1958, vol. 8, pp. 484–492. DOI: 10.1016/0029-5582(58)90180-9.
8. Dave J.H., and Gould C.R. Optical model analysis of scattering of 7- to 15-MeV neutrons from 1-p shell nuclei. Physical Review C, 1983, vol. 28, рр. 2212–2221. DOI: 10.1103/PhysRevC.28.2212.
9. Chadwick M.B., and Young P.G. Calculation and Evaluation of Cross Sections and Kerma Factors for Neutrons up to 100 MeV on 16O and 14N. Nuclear Science and Engineering, 1996, vol. 123, pp. 1–16. DOI: 10.13182/NSE96-A24209.
10. Morgan G.L. Cross Sections for the 14N(n, p0), 14N(n, a0) and 14N(n, a1) Reactions from 0,5 to 15 MeV. Nuclear Science and Engineering, 1979, vol. 70, pp. 163–176. DOI: 10.13182/NSE79-A19649.
11. Gibbons J.H., Macklin R.L. Total Neutron Yields from Light Elements under Proton and Alpha Bombardment. Physical Review 1959, vol. 114, pp. 571–580. DOI: 10.1103/PhysRev.114.571.
12. Gabbard F., Bichsel H., Bonner T.W. The Disintegration of Nitrogen by Fast Neutrons. Nuclear Physics, 1959, vol. 14, pp. 277–294. DOI: 10.1016/0029-5582(59)90013-6.
13. Johnson C.H., Barschall H.H. Interaction of Fast Neutrons with Nitrogen. Physical Review, 1950, vol. 80, pp. 818–823. DOI: 10.1103/PhysRev.80.818.
14. Bollmann W., Zuenti W. Cross section measurements of the 14N(n, a) and the 14N(n, p) process by means of monoenergetic D-D neutrons. Helvetica Physica Acta, 1951, vol. 24, pp. 517–652. DOI: 10.5169/seals-112230.
15. Khryachkov V.A., Kuz’minov B.D., Dunaev M.V. et al. Measurement of the cross sections of the reactions 14N(n, α)11B and 14N(n, t)12C at neutron energies 5.45–7.2 MeV. At Energy, 2006, vol. 101, isuue 4, pp. 760–765. https://doi.org/10.1007/s10512-006-0165-6.
16. Kalbach C. Systematics of continuum angular distributions: Extensions to higher energies. Physical Review, 1988, vol. C37, p. 2350–2370. DOI: 10.1103/PhysRevC.37.2350.
17. Kalbach C. Preequilibrium reactions with complex particle channels. Physical Review, 2005, vol. C71, 034606. DOI: 10.1103/PhysRevC.71.034606.
18. Budnik A.P., Lunev V.P. Svecheniye nochnogo neba [Night sky brightness]. Preprint FEI-3139 – Preprint IPPE-3139. Obninsk, 2008. 61 p. Available at: https://studylib.ru/doc/2016002/svechenie-nochnogo-neba (accessed 10.08.2022).
19. Budnik A.P., Lunev V.P., Svin’in I.R., Sipachev A.V. Mathematical simulation of the air luminescence due to cosmic rays and natural radioactivity. Preprint FEI-3138 – Preprint IPPE-3138. 2008. Obninsk, 2008. 31 p.
