Registration of Delayed Neutrons from 238U Photofission at Eγ max ≅ 10 MeV in Interval of (1–5) ms after Beam Pulses of the Electron Accelerator
https://doi.org/10.56304/S2079562920060172
Abstract
Experimental verification for correctness of registration for delayed neutrons from 238U photofission is described for the maximum energy of bremsstrahlung γ-quanta ≅10 MeV at the pulsed linear electron accelerator LUE-8-5 in an interval of (1–5) ms after each beam pulse in time ≳7 min from start of irradiation. The measurements were carried out using the scintillation spectrometer for fast neutrons based on a stilbene single crystal with pulse shape discrimination for scintillations from γ-quanta and fast neutrons. The time dependence of counting rates of delayed neutrons from 238U photofission was measured at a repetition rate of 300 s-1 in intervals of (1.25–3.30) ms.
About the Authors
L. Z. Dzhilavyan
Institute for Nuclear Research, Russian Academy of Sciences
Russian Federation
Russian Federation
Moscow, 117312
A. M. Lapik
Institute for Nuclear Research, Russian Academy of Sciences
Russian Federation
Russian Federation
Moscow, 117312
L. N. Latysheva
Institute for Nuclear Research, Russian Academy of Sciences
Russian Federation
Russian Federation
Moscow, 117312
V. G. Nedorezov
Institute for Nuclear Research, Russian Academy of Sciences
Russian Federation
Russian Federation
Moscow, 117312
V. N. Ponomarev
Institute for Nuclear Research, Russian Academy of Sciences
Russian Federation
Russian Federation
Moscow, 117312
A. V. Rusakov
Institute for Nuclear Research, Russian Academy of Sciences
Russian Federation
Russian Federation
Moscow, 117312
N. M. Sobolevsky
Institute for Nuclear Research, Russian Academy of Sciences
Russian Federation
Russian Federation
Moscow, 117312
G. V. Solodukhov
Institute for Nuclear Research, Russian Academy of Sciences
Russian Federation
Russian Federation
Moscow, 117312
References
1. Chu S.Y.F., Ekström L.P., Firestone R.B. The Lund/LBNL Nuclear Data Search. 1999. http://nucleardata.nuclear.lu.se/toi/.
2. Piksaikin V.M., Egorov A.S., Gremyachkin D.E., Mitrofanov K.V. // Vopr. At. Nauki Tekh., Ser.: Yad.-Reakt. Konst. 2019. No. 1. P. 184 (in Russian).
3. Borzakov S.B., Zamyatnin Yu.S., Panteleev Ts., Pavlov S.S., Ruskov I. . // Vopr. At. Nauki Tekh., Ser.: Yad.-Reakt. Konst. 1999. Vypusk No. 2 (in Russian).
4. Dzhilavyan L.Z., Lapik A.M., Nedorezov V.G., Ponomarev V.N., Rusakov A.V., Solodukhov G.V. // Phys. Part. Nucl. 2019. V. 50. No. 5. P. 626.
5. Dzhilavyan L.Z., Lapik A.M., Nedorezov V.G., Ponomarev V.N., Rusakov A.V., Solodukhov G.V. // Bull. Russ. Acad. Sci.: Phys. 2020. V. 84. P. 356.
6. Nedorezov V.G., Ponomarev V.N., Solodukhov G.V. // Bull. Russ. Acad. Sci.: Phys. 2019. V. 83. P. 1161.
7. Kukhtevich V.I., Trykov L.A., Trykov O.A., Odnokristal’nyy stsintillyatsionnyy spektrometr (s organicheskim fosforom) [Single-Crystal Scintillation Spectrometer (with Organic Phosphorus)]. 1971. Moscow: Atomizdat (in Russian).
8. Verbitskii S.S., Emokhonov V.N., Lapik A.M., Nedorezov V.G., Rusakov A.V., Solodukhov G.V., Tikanov M.A., Tselebrovskii A.N., Shilyaev A.A. // Bull. Russ. Acad. Sci.: Phys. 2011. V. 75. P. 1544.
9. Verbitskii S.S., Emokhonov V.N., Lapik A.M., Nedorezov V.G., Solodukhov G.V., Tikanov M.A., Turinge A.A., Tselebrovskii A.N. // Instrum. Exp. Tech. 2012. V. 55. No. 2. P. 174.
10. Dzhilavyan L.Z., Lapik A.M., Rusakov A.V. // Bull. Russ. Acad. Sci.. Phys. 2019. V. 83. P. 474.
11. Gryzlov A.I., Kudinov I.V., Muntyan V.I., Prudnikov I.A., Rumyantsev V.V., Smirnov V.L, Susloparov M.S., Fomin L.P., Shchepin Yu.P. The Linear Electron Accelerator LUE-8-5RV – Effective Source of Ionizing Radiation for Different Radiation-Technology Processes. Proc. of the Third All-Union Conf. on Use of Charged Particle Accelerators in the National Economics. 1979. Leningrad: NII EFA, V. I. P. 254 (in Russian).
12. Svistunov Yu.A., Smirnov V.L., Shchepin Yu.P. Energy Spectra for Linear Electron Accelerators with Magnetrons as RF-Sources. 1985. Moscow: TsNII AtomInform (in Russian).
13. Dietrich S.S., Berman B.L. // At. Data Nucl. Data Tables. 1988. V. 38. P. 199.
14. Varlamov V.V., et al. Report INDC(NDS)-394. 1999. Vienna: IAEA.
15. Dzhilavyan L.Z., Pokotilovski Yu.N. // Phys. Part. Nucl. Lett. 2017. V. 14. No. 5. P. 726.
16. Latysheva L.N., Sobolevsky N.M. LOENT – the Code for Monte Carlo Simulation of Neutron Transport in Complex Geometries. Preprint INR RAS No. 1200/2008 (in Russian).
17. https://www.inr.ru/shield/.
18. Dementyev A.V., Sobolevsky N.M. Rad. Meas. 1999. V. 30. P. 533. https://doi.org/10.1016/S1350-4487(99)00231-0
19. Piksaikin V.M., Egorov A.S., Gremyachkin D.E., Mitrofanov K.V. Quasi-Equilibrium Energy Spectra of Delayed Neutrons for Epithermal Neutron-Induced Fission of 235U. Proc. Int. Seminar on Interaction of Neutrons with Nuclei. ISINN-23. Dubna, Russia. May 25−29, 2015. http://isinn.jinr.ru/proceedings/isinn-23.html.
20. Dzhilavyan L.Z., Nedorezov V.G. // Phys. At. Nucl. 2013. V. 76. P. 1444.
21. Akimov D.Yu., Bolozdynya A.I., Efremenko Yu.V., Krakhmalova T.D., Kaplin V.A., Kumpan A.V., Melikyan Yu.A., Onishchenko E.M., Sosnovtsev V.V., Shakirov A.V. // Instrum. Exp. Tech. 2014. V. 57. No. 5. P. 615.
Review
For citations:
Dzhilavyan L.Z., Lapik A.M., Latysheva L.N., Nedorezov V.G., Ponomarev V.N., Rusakov A.V., Sobolevsky N.M., Solodukhov G.V. Registration of Delayed Neutrons from 238U Photofission at Eγ max ≅ 10 MeV in Interval of (1–5) ms after Beam Pulses of the Electron Accelerator. Nuclear Physics and Engineering. 2021;12(2):112-122. (In Russ.) https://doi.org/10.56304/S2079562920060172
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