Results 241 to 250 of about 1,076,657 (296)

Neutron transport calculations in support of neutron diagnostics at JET

Review of Scientific Instruments, 1999
At JET the primary diagnostic for monitoring the neutron emission is a set of fission chambers. These are calibrated using the neutron activation technique. A second independent measurement of the neutron yield can be obtained from the neutron profile monitor.
M. J. Loughlin, N. Watkins, L. Bertalot, B. Esposito, A. L. Roquemore   +4 more
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Calculation of the transmission of neutron benders

Measurement Science and Technology, 1991
A multislot beam bender has been described and its transmission characteristics and reflectivity losses discussed previously. It is shown that approximate analytical expressions for determining the reflectivity losses using the mean number of reflections agree well with computer simulation results which track the neutron trajectories directly.
A Schirmer, D F R Mildner
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Calculation of Clinical r.b.e. Values for Neutrons

International Journal of Radiation Biology and Related Studies in Physics, Chemistry and Medicine, 1986
A method is described for calculating r.b.e. values for normal tissues at risk in clinical neutron beam therapy. This is based on the assumption that with high l.e.t. radiations the slope of the cell survival curve is steeper, mainly in the initial or low-dose region.
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Calculated LET Distributions of Fast Neutrons

Radiation Research, 1968
Distributions of stopping power ( ${\rm LET}_{\infty}$) have been calculated for four beams of fast neutrons: neutrons of 14.6 MeV, neutrons produced by bombarding a thick beryllium target with 15-MeV deuterons, neutrons of 3 MeV, and fast neutrons produced by bombardment of a235 U converter plate with thermal neutrons.
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On the stability of neutron matter calculations

Zeitschrift für Physik A Hadrons and nuclei, 1973
The problem of the stability of usual Hartree-Fock calculations of neutron matter with effective two-body interactions is investigated by using the second order variational equations. Sufficient conditions for instability are derived, which can be checked easily for a given effective potential. Numerical calculations are performed and neutron matter is
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Calculations of Neutron-Deuteron Scattering

Physical Review, 1965
Exact three-body calculations using separable two-body interactions have been carried out for the neutron-deuteron system at low and intermediate energies. Binding energies, scattering lengths, angular distributions, and total cross sections for $n\ensuremath{-}d$ scattering and the total break-up cross sections for $n+d\ensuremath{\rightarrow}n+n+p ...
R. Aaron, R. D. Amado, Y. Y. Yam
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Calculations of Neutron Detector Efficiencies

1980
Several improvements have been made during the last few years to computer calculations of efficiencies for detecting neutrons with hydrocarbon scintillators. The most recent work of Cecil et al. (1979) claims an accuracy of a few percent for a substantial range of neutron energies, detector thresholds, and counter sizes.
Bryon D. Anderson, Robert A. Cecil, Richard Madey   +2 more
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Neutron shielding calculations for neutron imaging facility at the Maâmora Triga reactor

Applied Radiation and Isotopes, 2021
The build of neutron imaging facility is planned in the tangential beam around the TRIGA 2 MW, located in the Mâamora Nuclear Research Centre of Morocco. The design of this equipment and the plans for all operations should be evaluated in advance for the adequacy of radiation protection. Cement and concrete has been widely used as shielding material in
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Comment on the Calculation of Neutron Lifetime

Nuclear Science and Engineering, 1969
(1969). Comment on the Calculation of Neutron Lifetime. Nuclear Science and Engineering: Vol. 38, No. 2, pp. 178-179.
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Calculations of Neutron Emission in the Thermal Neutron Fission of U235

1960
Scope and contents: The probability of fission as a function of primary fragment velocities has been obtained by removing the neutron emission and instrumental dispersions from the velocities determined by Stein with time-of-flight techniques for the thermal neutron fission of u235.
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