Neutron radiography using neutron imaging plate

Chankow, Nares; Punnachaiya, Suvit; Wonglee, S.

doi:10.1016/j.apradiso.2009.09.021

Cited by 16 publications

(10 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The generator used D-T reactions and produced 14.1 MeV energetic neutrons with a 1 × 10 8 n/cm 2 /s fl ux at 80 kV terminal voltage and a 60-A ion beam current. In FNR systems, scintillation screens (plastic or inorganic scintillators) were used [3,9,10]. Because of their sensitivity to fast neutrons, inorganic ZnS(Ag) scintillators were prepared (silver-activated ZnS (30%) of granule size 20 m dispersed in polypropylene (70%) with dimensions 27 cm × 27 cm and 2.4 mm in thickness).…”

Section: Description Of the Systemmentioning

confidence: 99%

“…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%

“…Fusion of a deuterium and a tritium atom (D  T) results in the creation of a He-4 ion and a neutron with a kinetic energy of nearly 14.1 MeV [7]. A scintillation detector is used for FNR imaging as a converter [3,8]. Fast neutrons are scattered by hydrogen nuclei, and the recoil protons produced are absorbed in a scintillation plate.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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

Kam

Reyhancan

Bıyık³

2019

Nukleonika

View full text Add to dashboard Cite

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.

show abstract

Section: Description Of the Systemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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

Kam

Reyhancan

Bıyık³

2019

Nukleonika

View full text Add to dashboard Cite

show abstract

“…A comparison of X-ray film and X-ray Imaging Plate (IP) used as the detection system on the set-up of NEUTRA at Paul Scherrer Institute (PSI) were described in Table 1 (Lehmann et al, 2003). The IP was introduced into the INR method to replace the film, for the following advantages (Lehmann et al, 2003;Thoms, 1999;Yasuda et al, 2005;Chankow et al, 2010):…”

Section: Introductionmentioning

confidence: 99%

Experience of the Indirect Neutron Radiography Method Based on the X-ray Imaging Plate at CARR

et al. 2015

View full text Add to dashboard Cite

Indirect neutron radiography (INR) experiments by X-ray imaging plate were carried out at the China Advanced Research Reactor (CARR). The key experiment parameters were optimized, especially the exposure time of the neutron converter and imaging plate. The optimized total exposure time is 37.25 min, it is two-fifths of the time based on the film method under the same experimental conditions. The qualitative and quantitative inspections were tested with dummy nuclear fuel rods and a water temperature sensor of a motor vehicle. The spring in the sensor and the defects of the dummy fuel rod's pellets can be qualitatively detected. The thickness of the tape at one position on the cladding of the dummy nuclear fuel rod was quantitatively calculated to be 9.57 layers with the relative error of ±4.3%.

show abstract

“…The new devices allow radiographers to perform non-film neutron radiography with neutron generator and Cf-252 neutron sources. The Fuji neutron imaging plate offers speed several ten times faster than that of the Gd/film assembly with comparable image quality [11][12][13]. …”

Section: Recording Medium Commentmentioning

confidence: 99%