Results 21 to 30 of about 5,212 (266)

UCN Source at an External Beam of Thermal Neutrons

open access: yesAdvances 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
doaj   +1 more source

Concept of Neutron Source Creation for Nuclear Medicine on the Basis of Linear Electron Accelerator

open access: yesEast 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
doaj   +1 more source

Photo neutron dose equivalent rate in 15 MV X-ray beam from a Siemens Primus Linac

open access: yesJournal 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
doaj   +1 more source

Prompt Fission Gamma-Ray Measurements at UML Research Reactor [PDF]

open access: yesEPJ 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
doaj   +1 more source

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]

open access: yesEPJ Web of Conferences
In 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
doaj   +1 more source

Gamma In Addition to Neutron Tomography (GIANT) at the NECTAR instrument

open access: yesScientific 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
doaj   +1 more source

High Performance Dual Ballistic and Thermal Neutrons Shields From Kevlar Fibers Reinforced Epoxy/B4C Hybrid Composites

open access: yesFrontiers 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
doaj   +1 more source

Optimization of Beam Shaping Assembly design for Boron Neutron Capture Therapy based on a transportable proton accelerator

open access: yesAlexandria Engineering Journal, 2018
The optimization of a Beam Shaping Assembly design for Boron Neutron Capture Therapy (BNCT), based on a commercial available proton accelerator, has been simulated.
Jacob G. Fantidis, G. Nicolaou
doaj   +1 more source

Thermal moderator-reflector assembly for HBS [PDF]

open access: yesEPJ Web of Conferences
The thermal moderator is the key component in a research neutron source to convert the primary neutrons which typically have energies in the MeV regime into useful neutrons for investigations with energies well below 1 eV. In the case of a HiCANS as HBS,
Rücker Ulrich   +7 more
doaj   +1 more source

New applications and developments in the neutron shielding

open access: yesEPJ Web of Conferences, 2017
Shielding neutrons involve three steps that are slowing neutrons, absorption of neutrons, and impregnation of gamma rays. Neutrons slow down with thermal energy by hydrogen, water, paraffin, plastic. Hydrogenated materials are also very effective for the
Uğur Fatma Aysun
doaj   +1 more source

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