Results 121 to 130 of about 26,511 (166)
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Low-Temperature Neutron Moderation
Physical Review Letters, 1960Measurements on an energy level in the microwave spectrum of water are discussed. The inelastic cross section for scattering of 0.005 ev neutrons from HO/sub 1/2/ at room temperature was estimated to be 8 barns. (C.J.G.)
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Temperature Shift of Neutron Resonances
1986Temperature-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 +5 more
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Neutron scattering at nK temperatures
Neutron News, 1991Abstract 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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Temperature sensing by neutron transmission
Nuclear Instruments and Methods, 1972Abstract 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, 1999Abstract Neutron scattering allows the application of extreme sample conditions during the experiment.
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Temperature Equilibrium of C-Neutrons
Nature, 1937THE slow neutrons leaving a block of paraffin wax, containing a source of fast neutrons, mostly possess thermal energies. The existence of such thermal neutrons has been established by the discovery1 that the temperature T of the paraffin has an influence on the activities induced in various elements.
O. R. FRISCH +2 more
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Neutron Production and Temperature in ZETA
Nature, 1958IT 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, 2014This 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 +2 more
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Neutron Transport with Temperature Feedback
Nuclear Science and Engineering, 1976We consider a nonlinear neutron transport problem in a finite homogeneous body with temperature feedback.
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Neutron Diffraction Study of Water At High Temperature
Europhysics Letters (EPL), 1992Neutron diffraction measurements on water at T = 523 K are presented. The comparison with room temperature data shows an evident weakening of the tetrahedral coordination. This effect has been accurately simulated by an ensemble of polarizable water molecules, interacting via the NEMO (Non Empirical Molecular Orbital) potential model.
U. Buontempo +3 more
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