Conference Publications

This community mainly contains citations, yet where permitted, the full text, of the conference papers, presentations, posters and abstracts written by ANSTO authors.

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Browsing Conference Publications by Subject "Absorptivity"

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    Radiation shielding design for neutron diffractometers assisted by Monte Carlo methods
    (Elsevier B. V., 2006-11-15) Osborn, JC; Ersez, T; Braoudakis, G
    Monte Carlo simulations may be used to model radiation shielding for neutron diffractometers. The use of the MCNP computer program to assess shielding for a diffractometer is discussed. A comparison is made of shielding requirements for radiation generated by several materials commonly used in neutron optical elements and beam stops, including lithium-6 based absorbers where the Monte Carlo method can model the effects of fast neutrons generated by this material. Crown copyright © 2006 Published by Elsevier B.V.
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    Radiation shielding design for neutron diffractometers assisted by Monte Carlo methods
    (The Bragg Institute, Australian Nuclear Science and Technology Organisation, 2005-11-27) Ersez, T; Braoudakis, G; Osborn, JC
    The absorption and scattering of neutrons by neutron optical elements, beam stops and other components present significant radiation shielding challenges due to the generation of gamma radiation. In the case of neutron absorbers incorporating lithium- 6, fast neutrons are also generated. We show how Monte Carlo simulations using the MCNP computer code may be used to model the radiation fields produced by such components, thereby assisting in the choice of materials for shutters and other elements and assisting in the design of shielding. We discuss the use of these techniques to model instrument shielding bunkers, comprised principally of lead walls with boron-containing linings, for diffractometers at the OPAL Reactor, ANSTO. © 2005 The Authors