Results 121 to 130 of about 27,742 (167)

Temperature of neutron stars

International Journal of Modern Physics D, 2016
We start with a brief introduction to the historical background in the early pioneering days when the first neutron star thermal evolution calculations predicted the presence of neutron stars hot enough to be observable. We then report on the first detection of neutron star temperatures by ROSAT X-ray satellite, which vindicated the earlier prediction
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Relaxation of the temperature of a neutron gas

Soviet Atomic Energy, 1963
The spectra of thermal neutrons were measured in water at various distances from a spherical source, in order to determine the temperature of the neutron gas. The spectrum of the source was obtained by means of the cadmium difference; it exhibited a Maxwellian distribution and a temperature exceeding considerably the temperature of the water, which ...
E. Ya. Doil'nitsyn, A. G. Novikov, I. P. Stakhanov, A. S. Stepanov   +3 more
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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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High-temperature neutron dosimeters

Nuclear Instruments and Methods, 1972
Abstract Preparation methods have been established for certified and pure refractory neutron flux detectors. The classical powder mixing, pressing, sintering, and mechanical finishing operations have been refined for Al 2 O 3 containing 1% CoO and MgO containing 1% CoO.
J. Joyeux, J. Van Audenhove
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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 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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Temperature sensing by neutron transmission

Nuclear Instruments and Methods, 1972
Abstract The potential of using neutron transmission as a temperature sensor is demonstrated.
A.A. Harms, W.J. Garland
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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 Production and Temperature in ZETA

Nature, 1958
IT is assumed that thermalization and high temperature have been achieved in ZETA1, although theoretical considerations demand a much longer period than that available for the process to take place2. This discrepancy between apparently observed and the theoretically expected thermalization time may be due to unknown processes occurring which speed up ...
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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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