cold neutron

cold neutron

[′kōld ′nü‚trän]
(solid-state physics)
A very-low-energy neutron in a reactor, used for research into solid-state physics because it has a wavelength of the order of crystal lattice spacings and can therefore be diffracted by crystals.
References in periodicals archive ?
"As the neutron stars are devoured," he added, "they spin up and eject cold neutron matter, which decompresses, heats up and make these elements."
Using neutrons for the study of materials has advanced greatly over the last 60 years and the introduction of cold neutron sources (CNS) have allowed the investigation of long-range atomic structures found in polymers, ceramics, and other functional materials.
In this paper we find asymptotic expressions for the positions of Regge poles in the limit of large angular momenta, which mainly contribute to large angle scattering of cold neutrons. We study a case of cold neutron scattering, as far as comparatively large amount of cold neutrons available makes possible high statistical accuracy in resolving interference pattern of scattered neutron wave.
Vilaseca, MACS--a new high intensity cold neutron spectrometer at NIST, Meas.
"ORNL will be unique in the world having both high-intensity pulsed and continuous cold neutron sources," explains Steve Nagler, interim director of ORNL's Center for Neutron Scattering.
That means an increase in [r.sub.n], the radius of the free neutron, to a considerably greater dimension as a so-called "cold neutron" until the proton and the neutron-electron part with a random measure of the electron-meson's binding energy as a massless supply of neutrino-energy to the aether.
Additionally, the reflected intensity versus q was determined by neutron reflectivity for these four samples on the NG7 beam line at the National Institute of Standards and Technology Cold Neutron Research Facility in Gaithersburg.
(X) Investigation of microscopic dynamics in polymers by cold neutron spectroscopy.
The CNF will contain Canada's first cold neutron source and guide hall, opening up new areas of research that require longer wavelengths and finer energy scales than have been accessible previously.
The team used cold neutron triple-axis spectrometer beams for studying exotic magnetic effects and analyzed low-energy excitations in the copper bromide compound.
By the year 2000, NIST was nearing completion of an expansion of its cold neutron inelastic measurement capabilities, and a number of new high-resolution inelastic neutron instruments were coming online.
The cold neutron source in the core of the CNF reactor will boost the flux of lower-energy, longer-wavelength neutrons to more than ten times the level that can be achieved at the NRU reactor, which does not include a cold source.