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Monte-Carlo simulations of a neutron source generated with electron linear accelerator

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Języki publikacji
EN
Abstrakty
EN
Neutron generator consisting of an electron linear accelerator and a tungsten X-ray converter can produce a neutron flux of 109 n/s and 1011 n/s at electron energies of 10 and 15 MeV, respectively, with an electron beam intensity of 1014 e/s which means 160 and 240 W of electron incident beam power, respectively. Two stage neutron production with an electron to photon natural tungsten converter and a photon to neutron 9Be converter are equal or less efficient than one stage tungsten converter only. There is a low neutron separation energy of 9Be and a small cross section for the photonuclear reaction g(9Be,8Be*)n in comparison to photonuclear cross section in all tungsten isotopes for the photon energy range in and below resonance region. Results of the neutron generator modeling performed with the Fluka Monte-Carlo code are presented in this article.
Czasopismo
Rocznik
Strony
169--173
Opis fizyczny
Bibliogr. 12 poz., rys.
Twórcy
autor
  • Establishment for Nuclear Equipment, The Andrzej Sołtan Institute for Nuclear Studies, 05-400 Otwock-Świerk, Poland, Tel.: +48 22 718 05 22, Fax: +48 22 718 05 01, adamw@ipj.gov.pl
Bibliografia
  • 1. Akkurt I, Adler J-O, Annand JRM et al. (2003) Photoneutron yields from tungsten in the energy range of the giant dipole resonance. Phys Med Biol 48:3345–3352
  • 2. Berger JM (1957) Computation of nonrelativistic electron bremsstrahlung. Phys Rev 105:35–38
  • 3. Chadwick MB, Oblozinsky P, Blokhin AI et al. (2000)Handbook on photonuclear data for applications crosssections and spectra. IAEA-TECDOC-1178. IAEA,Vienna
  • 4. Dale GE, Gahl JM (2002) Preliminary modeling results of a thermal neutron source driven with electron linac.In: Mehlhorn TA, Sweeney MA (eds) Proc of the 14th Int Conf on High-Power Particle Beams. American Institute of Physics, pp 369–372
  • 5. Fasso A, Ferrari A, Ranft J, Sala P (2005) Code Fluka 2003 version 1.0b, Mar-04, http://www.fluka.org/
  • 6. Firestone RB, Shirley VS (eds) (1996) Table of isotopes,8th ed. John Wiley & Sons Inc, New York 7. Gibbons JH, Macklin RL, Marion JB, Schmitt HW (1959)
  • Precision measurement of the Be9(γ,n) cross section. Phys Rev 114:1319–1323
  • 8. Haug E (2003) Photon energy spectrum of electronpositron bremsstrahlung in the center-of-mass system.Eur Phys J C 31:365–369
  • 9. Haug E (2003) Proton-electron bremsstrahlung. Astron Astrophys 406:31–35
  • 10. John W, Prosser JM (1962) Photodisintegration cross section of beryllium near threshold. Phys Rev 127:231–235
  • 11. Kneissl U, Kuhl G, Leister KH, Weller A (1975) Photoneutron cross section for 9Be obtained with quasimonoenergetic photons. Nucl Phys A 247:91–102
  • 12.Konefał A, Dybek M, Zipper W, Łobodziec W, Szczucka K (2005) Thermal and epithermal neutrons in the vicinity of the Primus Siemens biomedical accelerator. Nukleonika 50:73–81
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BUJ5-0003-0008
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