Results 301 to 310 of about 252,656 (347)

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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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 halo structure, 9Li-neutron and neutron-neutron momentum correlations in 11Li

Nuclear Physics A, 1992
Abstract The approximate three-body approach COSMA is used to explore the structure of 11Li. This “Borromean” system is discussed with reference to the similar system 6He for which information on the binary subsystems is more complete. Spatial densities and a variety of correlated momentum distributions for 9Li-n and nn are calculated.
M.V. Zhukov, D.V. Fedorov, B.V. Danilin, J.S. Vaagen, J.M. Bang   +4 more
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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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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 logging of drill holes; the neutron-neutron method

Geophysics, 1951
Abstract Experiments were performed to determine the distribution of thermal neutrons and of indium resonance neutrons in continuous hydrogenous media and in pipes passing through hydrogenous media. Included in the study were water, brine, mixtures of sand and water, and mixtures of sand and brine.
C. W. Tittle, Henry Faul, Clark Goodman
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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 activation in interrupted neutron beams

Applied Radiation and Isotopes
Neutron activation of activation targets in neutron beams with interruptions is studied. A simple and robust formalism for determining the number of activated atoms in neutron activation measurement despite beam interruptions is derived. Two simplified methods for correcting for the decay of produced nuclei in the activation target during beam ...
Wendland Lauri, Porra Liisa, Tenhunen Mikko, Seppälä Tiina, Wendland Lauri, Porra Liisa, Tenhunen Mikko, Seppälä Tiina   +7 more
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Neutron radiography with ultracold neutrons

Physics Letters A, 1981
Abstract The neutron transmission factor of very thin films may be low if the neutron energy is comparable to the pseudo-potential of the film material. Surprisingly, perhaps, it is relatively easy to obtain neutrons with such low energies in sufficient numbers to produce neutron radiographs.
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Neutron Spin-Neutron Orbit Interaction with Slow Neutrons

Physical Review Letters, 1963
Measurements were made of the polarization ratio of the scattered intensities for the two neutron spin states for two reflections (110) and (220) for positive angles and for the reflection (110) at negative angles. Very high neutron polarization was available and the intensity was studied as the magnetic field on the crystal was reduced to zero so as ...
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