Potential and status in imaging with fast neutrons

Dangendorf, V.; Zboray, Robert

doi:10.1080/10448632.2015.1028276

Cited by 6 publications

(4 citation statements)

References 17 publications

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“…A gas feeding system equipped with a pulsed gas valve was embedded into the microwave coupling system to provide neutral gas injection along the discharge axis. Magnetic field of the simple mirror configuration was produced by means of two pulsed magnetic coils (5). A two-electrode ion beam extraction system (6) with 5 mm aperture was placed 10 cm downstream the magnetic mirror.…”

Section: Methodsmentioning

confidence: 99%

“…However, these facilities are very expensive and complicated in operation, which hinders the spread of neutron tomography as a routine technique. Another approach for neutron imaging is a fast-neutron radiography [1][2][3][4][5]. In this case there is no need for neutron thermalization and radiation from a point-like sources could be applied instead of parallel beams, which means higher efficiency of neutron utilization for an image production.…”

Section: Introductionmentioning

confidence: 99%

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A powerful pulsed “point-like” neutron source based on the high-current ECR ion source

Skalyga

Golubev

Izotov

et al. 2020

Review of Scientific Instruments

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The paper presents recent results of a "point-like" neutron source development based on a D-D fusion in a D-loaded target caused by its bombardment with a sharply focused deuterium ion beam. These developments are undergoing at the Institute of Applied Physics of Russian Academy of Sciences in order to study a possibility to create an effective and compact device for fast-neutron radiography. Last experiments with a beam produced by a gasdynamic high-current ECR ion source and its focusing with magnetic lens demonstrated that 60 mA of deuterium ions may be constricted to a transversal size of ∼ 1 mm at the focal plane. With a purpose to improve this result in terms of the beam current and its size a combined electrostatic and magnetic focusing system is proposed and analysed. It is shown that combined system may enhance the total beam current and reduce its footprint down to 0.13 mm. All numerical analysis was performed using the IBSimu code.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A powerful pulsed “point-like” neutron source based on the high-current ECR ion source

Skalyga

Golubev

Izotov

et al. 2020

Review of Scientific Instruments

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show abstract

“…As opposed to thermal neutrons with relatively low penetration depth or high-energy X-rays with insufficient low-Z element contrast, fast neutrons (1–15 MeV) are the tool of choice for imaging thick objects containing both high- and low-Z elements. 1 The primary method for fast neutron detection is based on elastic scattering of neutrons by nuclei, generating recoil nuclei (typically protons) with very small penetration depths (up to tens of micrometers) in the detector material. The kinetic energy of these recoil nuclei is then deposited as ionized charge carriers in the detector material, which can excite a scintillator to emit visible-range photons detectable by conventional imaging devices such as a CCD camera.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Luminescent Lead Halide Ionic Liquids for High-Spatial-Resolution Fast Neutron Imaging

et al. 2021

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The fast neutron imaging technique with recoil proton detection harbors significant potential for imaging of thick, large-scale objects containing high-Z elements. However, the challenge to find efficient fast neutron scintillators with high spatial resolution is ongoing. The list of requirements for such scintillators is long and demanding: a proton-rich, scattering-free material combining high light yield with the absence of light reabsorption. To meet these challenges, we look for a suitable material among a rising class of 0D organic–inorganic Pb(II) halide hybrids. The use of large organic cations, e . g., trihexyltetradecylphosphonium, results in room-temperature ionic liquids that combine highly Stokes-shifted (up to 1.7 eV), reabsorption-free, and efficient emission (photoluminescence quantum yield up to 60%) from molecularly small and dense (PbX 2 molar fraction up to 0.33) emitting centers. We investigate the optical properties of the resulting ionic liquids and showcase their utility as fast neutron imaging scintillators. Concomitantly with good light yield, such fast-neutron scintillators exhibit both higher spatial resolution and lower γ-ray sensitivity compared with commercial ZnS:Cu-based screens.

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Non-classical applications of chemical analysis based on nuclear activation

Grdeń

2019

J Radioanal Nucl Chem

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Potential and status in imaging with fast neutrons

Cited by 6 publications

References 17 publications

A powerful pulsed “point-like” neutron source based on the high-current ECR ion source

A powerful pulsed “point-like” neutron source based on the high-current ECR ion source

Luminescent Lead Halide Ionic Liquids for High-Spatial-Resolution Fast Neutron Imaging

Non-classical applications of chemical analysis based on nuclear activation

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