Results 11 to 20 of about 76,946 (296)
Tolerance Flux of Thermal Neutrons [PDF]
Nature, 1949 THE danger of neutrons on the human body arises from two factors : the slowing down of fast neutrons and the absorption of neutrons. In the case of thermal neutrons, only absorption can take place, either in hydrogen to form a deuteron with emission of a 2.2-MeV. γ-ray, or by nitrogen-14 to form a carbon, with the emission of a 0.7-MeV. proton.
P, CAPRON, M, FAES, G C, TAVERNIER
openaire +4 more sources
Development of a Fast-Spectrum Self-Powered Neutron Detector for Molten Salt Experiments in the Versatile Test Reactor [PDF]
EPJ Web of Conferences, 2021 The self-powered neutron detector (SPND) is a widely used flux monitor in thermal nuclear reactors. Although this is a mature technology, the current state of the art is tuned for a thermal neutron spectrum, so many of the devices currently in use lack ...
Goetz K. C., Cetiner S. M., Celik C.
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UCN Source at an External Beam of Thermal Neutrons
Advances in High Energy Physics, 2015 We propose a new method for production of ultracold neutrons (UCNs) in superfluid helium. The principal idea consists in installing a helium UCN source into an external beam of thermal or cold neutrons and in surrounding this source with a solid methane ...
E. V. Lychagin +5 more
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Concept of Neutron Source Creation for Nuclear Medicine on the Basis of Linear Electron Accelerator
East European Journal of Physics, 2021 We review the current status of the development of sources of epithermal neutrons sources based on reactors and accelerators for boron neutron capture therapy (BNCT), a promising method of malignant tumor treatment.
Valentin Kasilov +7 more
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Photo neutron dose equivalent rate in 15 MV X-ray beam from a Siemens Primus Linac
Journal of Medical Physics, 2015 Fast and thermal neutron fluence rates from a 15 MV X-ray beams of a Siemens Primus Linac were measured using bare and moderated BF 3 proportional counter inside the treatment room at different locations.
A Ghasemi +4 more
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Prompt Fission Gamma-Ray Measurements at UML Research Reactor [PDF]
EPJ Web of Conferences, 2020 Neutron-induced fission of 235U was studied at the thermal column of the UMass Lowell 1 MW Research Reactor. A collimated, 2.25-inch diameter beam of thermal neutrons with the flux of ~5x105 n/cm2/sec induced fission reaction on a plate of low-enriched ...
Stanescu Razvan +4 more
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50th anniversary and recent decade achievements of the Hokkaido University Neutron Source (HUNS) facility with cold-fast neutrons and high-energy electrons/X-rays [PDF]
EPJ Web of ConferencesIn this paper, present status, scientific strategy, recent decade achievements and future perspectives of HUNS with cold, thermal, epithermal, fast neutrons and high-energy electrons/X-rays are presented.
Sato Hirotaka +5 more
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Gamma In Addition to Neutron Tomography (GIANT) at the NECTAR instrument
Scientific Reports, 2023 The NECTAR instrument provides access to thermal and fast neutrons which are suitable for non-destructive inspection of large and dense objects. Scintillators are used in combination with a camera system for radiography and tomography.
Richi Kumar +3 more
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Frontiers in Physics, 2022 Targeting the development of advanced lightweight thermal and ballistic neutrons shields, a new hybrid composite was developed, for the first time, from Kevlar fibers, epoxy and boron carbide (B4C) particles.
Mehdi Derradji +3 more
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In-Beam Background Suppression Shield [PDF]
, 2015 The long (3ms) proton pulse of the European Spallation Source (ESS) gives rise to unique and potentially high backgrounds for the instrument suite. In such a source an instrument capabilities will be limited by it's Signal to Noise (S/N) ratio.
Ansell, S. +4 more
core +2 more sources