Results 121 to 130 of about 16,577 (167)

Thermal neutron driven, 14.1 MeV neutron generators

Nuclear Instruments and Methods in Physics Research, 1983
Abstract A detailed theoretical and experimental study of the production of 14.1 MeV neutrons from thermal neutrons using simple convertors has been performed. These convertors rely on the absorption of a thermal neutron resulting in a triton which interacts with deuterium producing a 14.1 MeV neutron. Three different systems have been studied: 6 LiD,
William H. Miller, W.S. Law, Robert M. Brugger   +2 more
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Pulsed thermal neutron source at the fast neutron generator

Applied Radiation and Isotopes, 2009
A small pulsed thermal neutron source has been designed based on results of the MCNP simulations of the thermalization of 14 MeV neutrons in a cluster-moderator which consists of small moderating cells decoupled by an absorber. Optimum dimensions of the single cell and of the whole cluster have been selected, considering the thermal neutron intensity ...
Grzegorz, Tracz, Krzysztof, Drozdowicz, Barbara, Gabańska, Ewa, Krynicka   +3 more
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Inorganic thermal-neutron scintillators

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2004
A review is presented of research and development of inorganic scintillators for position-sensitive thermal-neutron detectors to be used at new spallation neutron sources.
C.W.E van Eijk, A Bessière, P Dorenbos
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Thermalization of Neutrons

2017
Neutrons reach thermal energy following successive collisions with moderator nuclides provided they are neither absorbed nor leak out of the reactor. At this point, they can either lose energy by collision or gain energy if the target nucleus is itself in thermal motion, and can thus transfer momentum to the neutrons.
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Thermal neutrons Gd-detector

Nuclear Instruments and Methods, 1968
Abstract A thermal neutrons detector, based on the measurement of the current of conversion electrons from a Gd target has been realized. Its principal features are the immediate response to flux variations and a good γ selectivity.
A. Foglio-Para, N.A. Gottardi, M.Mandelli Bettoni   +2 more
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Thermal neutron for 241Pu

Journal of Nuclear Energy. Part A. Reactor Science, 1959
The average number oi neutrons per fission nu of Pu/sup 241/ was measured at thermal energies relative to Pu/sup 239/, U/sup 235/, and U/sup 233/. The measurement yielded the product of nu and the effective fission cross- section (g sigma /sub F/) nu = 3162 plus or minus 72 barn neutrons/fission. Using a measured value (g sigma /sub F/,) = 1070 plus or
Arthur H. Jaffey, Carl T. Hibdon, Ruth Sjoblom   +2 more
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Neutron Thermalization in Graphite

Journal of Nuclear Science and Technology, 1973
The neutron thermalization and diffusion parameters in graphite were determined by pulsed technique for the neutron flux and the neutron density spectra, respectively. Measurements were performed on assemblies of geometrical bucklings between 2.26×10−3/cm2 and 15.58 × 10−3/cm2, in which, by suitable arrangement of the neutron source and detector, the ...
Jin MITSUI, Kazusuke SUGIYAMA
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Neutron thermalization in graphite

Journal of Nuclear Energy, 1968
Abstract The neutron thermalization process for an incident neutron pulse in a moderating assembly has so far been treated by solving the Boltzmann equation in the diffusion approximation with scattering kernel based on theoretical models. In this paper, the mean energy, E (t) and average logarithmic energy decrement, ξ for an infinite medium
M.P. Navalkar, S.B.D. Iyengar
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Phase Change Thermal Storage Materials for Interdisciplinary Applications

Chemical Reviews, 2023
Ge Wang, Ang Li, Xiao Chen
exaly  

Polarizer for thermal neutrons

Physics Bulletin, 1977
The interaction between the neutron and electron spin provides a unique tool for studying the distribution of magnetism in solids. Neutron scattering measurements with magnetic materials are particularly sensitive when the spin state of the neutron is defined, that is when the neutron beams are polarized.
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