Results 1 to 10 of about 9,598 (164)

Neutron flux evaluation model provided in the accelerator-based boron neutron capture therapy system employing a solid-state lithium target [PDF]

open access: yesScientific Reports, 2021
An accelerator-based boron neutron capture therapy (BNCT) system employing a solid-state Li target can achieve sufficient neutron flux for treatment although the neutron flux is reduced over the lifetime of its target.
Satoshi Nakamura   +20 more
doaj   +2 more sources

Development and characterization of a neutron calibration field at the Isfahan MNSR [PDF]

open access: yesScientific Reports
Correct estimation of neutron doses by well-calibrated dosimeters is crucial in radiation environments. Consequently, well-controlled neutron fields are needed to perform calibrations and repeatability tests.
Javad Mokhtari   +3 more
doaj   +2 more sources

Precision determination of absolute neutron flux. [PDF]

open access: yesMetrologia, 2018
Abstract A technique for establishing the total neutron rate of a highly-collimated monochromatic cold neutron beam was demonstrated using an alpha–gamma counter. The method involves only the counting of measured rates and is independent of neutron cross sections, decay chain branching ratios, and neutron beam ...
Yue AT   +7 more
europepmc   +5 more sources

Neutrons production on the IPHI accelerator for the validation of the design of the compact neutron source SONATE [PDF]

open access: yesEPJ Web of Conferences, 2020
We aim at building a compact accelerator-based neutron source (CANS) which would provide a thermal neutron flux on the order of 4x1012 n.s-1.cm-2.sr-1. Such a brilliance would put compact neutron sources on par with existing medium flux neutron research ...
Tran Hoang Ngoc   +10 more
doaj   +1 more source

System and process of thermal neutron flux producing by means of an accelerator base electron of 18 MeV

open access: yesEurasian Journal of Physics and Functional Materials, 2021
Neutrons are produced in accelerators by irradiating heavy targets with an electron or proton beam. Produced neutrons are of high energy. The purpose of our work is optimization the neutron flux by MCNP-6 code for production the thermal neutron flux ...
A. .. Didi   +5 more
doaj   +1 more source

Determination of Neutron Flux in Brain Cancer Boron Neutron Capture Therapy Using Monte Carlo Simulation

open access: yesPhysics Communication, 2022
Boron Neutron Capture Therapy (BNCT) is a relatively safer technology for killing cancer cells, one of which is the Glioblastoma multiforme. One of the main components of the BNCT equipment is the collimator which functions as an exit point for ...
Fajar Arianto   +3 more
doaj   +1 more source

Tolerance Flux of Thermal Neutrons [PDF]

open access: yesNature, 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   +2 more sources

Development and nuclear characteristic testing of a mobile miniature fission ionization chamber neutron detector

open access: yesHe jishu, 2023
BackgroundThe miniature fission ionization chamber is a widely used neutron detector for the in-core neutron flux monitoring of a nuclear reactor. Typically, the in-core neutron flux rate measurement system of a domestic CPR1000 nuclear power unit adopts
YAN Jie   +7 more
doaj   +1 more source

Beam Shaping Assembly Optimization for Boron Neutron Capture Therapy Facility based on Cyclotron 30 MeV as Neutron Source

open access: yesASEAN Journal on Science and Technology for Development, 2018
A design of beam shaping assembly (BSA) installed on cyclotron 30 MeV model neutron source for boron neutron capture therapy (BNCT) has been optimized using simulator software of Monte Carlo N-Particle Extended (MCNPX).
Arief Fauzi   +3 more
doaj   +1 more source

Current compensation for material consumption of cobalt self-powered neutron detector

open access: yesNuclear Engineering and Technology, 2020
Co Self-Powered Neutron Detector (SPND) is confronted with the problem of material consumption, which causes the response current can neither reflect the change of neutron flux in time nor be proportional to the neutron flux.
Xinxin Liu   +4 more
doaj   +1 more source

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