Results 241 to 250 of about 634,574 (277)

Micromegas neutron beam monitor neutronics

Radiation Protection Dosimetry, 2005
The Micromegas is a type of ionising radiation detector that consists of a gas chamber sandwiched between two parallel plate electrodes, with the gas chamber divided by a Frisch grid into drift and amplification gaps. Investigators have applied it to a number of different applications, such as charged particle, X-ray and neutron detection. A Micromegas
Andrew C, Stephan, Laurence F, Miller
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Neutron Production, Neutron Facilities and Neutron Instrumentation

Reviews in Mineralogy and Geochemistry, 2006
The main natural source of free neutrons is secondary radiation from cosmic radiation (creation of particles by interactions of cosmic radiation particles with atoms of the earth’s atmosphere). The main sources of neutrons generated artificially are nuclear reactors. Free neutrons have an average lifetime of about 888 seconds (e.g., Mampe et al.
S. C. Vogel, H.-G. Priesmeyer
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Neutron-Proton and Neutron-Neutron Scattering at High Energies

Physical Review, 1949
The phase method and the Born approximation is used to calculate the cross sections of high energy neutrons scattered by protons and neutrons. Various exchange theories are considered for both, central and tensor forces of rectangular and Yukawa well shape.
Rohrlich, F., Eisenstein, J.
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Neutron-Neutron Scattering

1992
Abstract The experimental determination of the neutron-neutron scattering length is of interest from the point of view of both the study of nucleon-nucleon interactions and the verification of the hypothesis of isotopic invariance of strong interactions at low energies.
Yu. A Alexandrov, T F Drozdova
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Neutron detection and neutron dosimetry

Radiation Protection Dosimetry, 2004
A review is presented on the research and development of inorganic scintillators for position-sensitive thermal neutron detectors to be used at new spallation neutron sources. Furthermore some recent developments in the field of fast-neutron dosimetry will be discussed.
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Neutron-Neutron Interaction

Reviews of Modern Physics, 1967
The present status of the problem of charge dependence is discussed. The information about the neutron-neutron interaction derived from the two-neutron system, three-nucleon systems, final-state interactions in multiparticle reactions, and peripheral processes is critically evaluated.
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Neutron-Neutron Scattering Length

Physical Review, 1961
The final-state interaction of the two neutrons from the reaction pi / sup -/ + d yields 2n + gamma has a pronounced and distinctive effect on tbe momentum spectrum of the outgoing particles. In particular, the neutron spectrum is sharply peaked in the neighborhood of 2 Mev, with a shape that is quite sensitive to the strength of the nn interaction. In
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Calculations of neutron spectra after neutron–neutron scattering

Journal of Physics G: Nuclear and Particle Physics, 2004
A direct neutron–neutron scattering length, ann, measurement with the goal of 3% accuracy (0.5 fm) is under preparation at the aperiodic pulsed reactor YAGUAR. A direct measurement of ann will not only help resolve conflicting results of ann by indirect means, but also in comparison to the proton–proton scattering length, app, shed light on the charge ...
B E Crawford, S L Stephenson, C R Howell, G E Mitchell, W Tornow, W I Furman, E V Lychagin, A Yu Muzichka, G V Nekhaev, A V Strelkov, E I Sharapov, V N Shvetsov   +11 more
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Neutron radiography using neutron imaging plate

Applied Radiation and Isotopes, 2010
The aims of this research are to study properties of a neutron imaging plate (NIP) and to test it for use in nondestructive testing (NDT) of materials. The experiments were carried out by using a BAS-ND 2040 Fuji NIP and a neutron beam from the Thai Research Reactor TRR-1/M1.
Nares, Chankow, Suvit, Punnachaiya, Sarinrat, Wonglee   +2 more
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