Results 251 to 260 of about 257,454 (293)

Internal Neutronics-Temperature Coupling in Serpent 2

Nuclear Science and Engineering, 2014
This paper describes the built-in calculation routines in the reactor physics code Serpent 2 that provide a novel method for solving the coupled problem of the power distribution, temperature distribution, and material property distributions in nuclear fuel elements.
Leppänen Jaakko, Valtavirta Ville, Viitanen Tuomas   +2 more
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High Temperature Neutron Diffraction Furnace

Review of Scientific Instruments, 1966
An induction transformer furnace for a neutron diffractometer is described. This furnace has been used for the examination of refractory carbides by neutron diffraction at temperatures up to 2500°C.
M. G. Bowman, D. E. Hull, W. G. Witteman, G. P. Arnold, A. L. Bowman   +4 more
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Temperature Shift of Neutron Resonances

1986
Temperature-induced shift of neutron resonances have been experimentally observed studying low-energy resonances of 103Rh, 109Ag, l61Dy and l63Dy with a time-of-flight spectrometer at the Dubna pulsed reactor The shifts are regarded as an analogue to the second-order Doppler effect in Mossbauer gamma-ray spectroscopy.
V. K. Ignatovich, A. Meister, S. Mittag, W. Pilz, D. Seeliger, K. Seidel   +5 more
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Neutron scattering at ultralow temperatures

Journal of Physics and Chemistry of Solids, 1999
Abstract Neutron scattering allows the application of extreme sample conditions during the experiment.
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Neutron diffraction at simultaneous high temperatures and pressures, with measurement of temperature by neutron radiography

Mineralogical Magazine, 2001
AbstractThe commissioning and operation of apparatus for neutron diffraction at simultaneous high temperatures and pressures is reported. The basic design is based on the Paris-Edinburgh cell using opposed anvils, with internal heating. Temperature is measured using neutron radiography. The apparatus has been shown in both on-line and off-line tests to
Le Godec, Y., Dove, M. T., Francis, D. J., Kohn, S. C., Marshall, W. G., Pawley, A. R., Price, G. D., Redfern, S. A T, Rhodes, N., Ross, N. L., Schofield, P. F., Schooneveld, E., Syfosse, G., Tucker, M. G., Welch, M. D.   +14 more
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Temperature measurement by neutron resonance radiography

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1989
Abstract We present a new method of data analysis for determination of temperature from the Doppler broadening of neutron resonance absorption cross sections. The method is model independent and simple to use. It has been applied to measurements on samples of rhenium and tantalum and has given temperatures to an accuracy better than ±1°C.
J. Mayers, G. Baciocco, A.C. Hannon
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Neutron scattering at nK temperatures

Neutron News, 1991
Abstract The study of nuclear magnetic order in Copper is the most ambitious and difficult neutron scattering experiment ever performed at Ris⊘. Beside expensive hardware, approximately 50man-months of scientific work, 24 months of beam time and 10000 litres of liquid He had to be invested before we could even expect to discover whether the experiment ...
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Neutron Transport with Temperature Feedback

Nuclear Science and Engineering, 1976
We consider a nonlinear neutron transport problem in a finite homogeneous body with temperature feedback.
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Neutron temperature measurements with 176Lu

Journal of Nuclear Energy. Part A. Reactor Science, 1959
A relative calibration of the Lu/sup 176/(n, gamma y) reaction is reported. It was found that the Lu/sup 176/(n, gamma ) reaction is potentially capable of measuring neutron temperature in the 0 to 110 deg C range to about 5 deg C. (C.J.G.)
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Neutron Capture Data at Stellar Temperatures

Reviews of Modern Physics, 1965
Neutron capture cross sections are averaged over Maxwell-Boltzmann neutron distributions for temperatures pertinent to slow nucleosynthesis ($s$ process) in red giant stars. Such cross sections, together with isotopic abundances, provide the major quantitative experimental tests of the theory.
R. L. MACKLIN, J. H. GIBBONS
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