Electronic imaging system for neutron radiography at a low power research reactor

Ferreira, Francisco J. O.; Silva, A.X.; Crispim, V.R.

doi:10.1016/j.radmeas.2010.02.013

Cited by 5 publications

(2 citation statements)

References 4 publications

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“…However, according to IAEA RRDB, there are research reactors with less than 1 kW that declare the use of neutron imaging. These are the Brazilian Argonauta reactor [ 10 ], the Japanese UTR KINKI reactor [ 11 ] and the Korean AGN-201K reactor [ 12 ] (see Table 1 .).…”

Section: Neutron Imaging On Low Power Research Reactorsmentioning

confidence: 99%

New Neutron Imaging Facility NIFFLER at Very Low Power Reactor VR-1

2023

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The paper describes the construction of the neutron imaging facility at the very low-power research reactor VR-1. The training reactor VR-1 is operated by the Czech Technical University in Prague, Czech Republic. It is mainly used for the education of students in the field of nuclear engineering as well as for the training of professionals. Neutron imaging is the new field of VR-1 reactor utilisation currently under development. Extremely low reactor power at the level of 100 W brought many challenges that were necessary to overcome to build and commission a sustainable neutron radiography facility. The paper describes the reactor’s neutron flux verification and the basic concept and design of the neutron imaging instrumentation. The first experimental results were mainly dedicated to testing the detection system for different radial beam port configurations, different L/D ratios, and different exposure times. Preliminary results of neutron radiography and tomography measurements at VR-1 clearly showed the potential of using neutron imaging in low-power reactors such as the VR-1 reactor.

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Section: Neutron Imaging On Low Power Research Reactorsmentioning

confidence: 99%

New Neutron Imaging Facility NIFFLER at Very Low Power Reactor VR-1

2023

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“…Using this technique, materials such as high-density metals, loaded plastics, cadmium, lead, tungsten, and concrete can be analysed. Compared to other techniques, fast neutrons enable NDT of thicker objects [2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

A portable fast neutron radiography system for non-destructive analysis of composite materials

Kam

Reyhancan

Bıyık³

2019

Nukleonika

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Depending on the neutron energy used, neutron radiography can be generally categorized as fast and thermal neutron radiography. Fast neutron radiography (FNR) with neutron energy more than 1 MeV opens up a new range of possibilities for a non-destructive examination when the inspected object is thick or dense. Other traditional techniques, such as X-ray, gamma ray and thermal neutron radiography, do not meet penetration capabilities of FNR in this area. Because of these distinctive features, this technique is used in different industrial applications such as security (cargo investigation for contraband such as narcotics, explosives and illicit drugs), gas/liquid flow and mixing and radiography and tomography of encapsulated heavy shielded low Z compound materials. The FNR images are produced directly during exposure as neutrons create recoil protons, which activate a scintillator screen, allowing images to be collected with a computer-controlled charge-coupled device camera. Finally, the picture can be saved on a computer for image processing. The aim of this research was to set up a portable FN R system and to test it for use in non-destructive testing of different composite materials. Experiments were carried out by using a fast portative neutron generator Thermo Scientific MP 320.

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