Applications of Neutron Radiography for the Nuclear Power Industry

Craft, Aaron E.; Barton, John P.

doi:10.1016/j.phpro.2017.06.009

Cited by 25 publications

(14 citation statements)

References 40 publications

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“…Neutron radiography of irradiated nuclear fuel provides more comprehensive information about the internal condition of irradiated nuclear fuel than any other non-destructive technique to date. Neutron radiography has seen significant use for nuclear applications since the capability was first developed, and continues to prove its value still today [1]. The TREAT radiography system is used to perform neutron radiography of fuels, experiments, and other specimens before and after irradiation at the TREAT reactor [2].…”

Section: Treat Neutron Radiography Program and Facility Descriptionmentioning

confidence: 99%

“…Film is becoming more difficult to procure and the chemicals have environmental concerns. TREAT has elected to produce radiographs via the CR process, which utilizes PSP image plates and a digital scanner [1]. Image plates are more sensitive than film, and thus require less exposure time than previous operations with film.…”

Section: Upgrade From Film To Computed Radiographymentioning

confidence: 99%

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Reactivation of the Transient Reactor Test (TREAT) Facility Neutron Radiography Program

Jensen

Craft

Papaioannou

et al. 2020

Neutron Radiography - WCNR-11

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The TREAT radiography system is used to perform neutron radiography of fuels, experiments, and other specimens before and after irradiation within the TREAT reactor. The TREAT neutron radiography facility performed approximately 5,000 radiographs by the spring of 1977. Originally built in 1958, the TREAT Facility was in operation until it was placed in a shutdown status in 1994. Following the Fukushima incident and seeing a need for enhanced accident tolerant fuels, the United Stated Department of Energy decided to restart the TREAT facility and resume transient operations. In November 2017, the TREAT reactor was successfully restarted and is currently performing operational testing in preparation for initial experiment irradiations and transient testing. This paper discusses efforts to reactivate the TREAT neutron radiography facility. To characterize the neutron beam, gold foil activation measurements were made to determine an average neutron flux and flux profile. An open beam image provides the information about variations in the beam profile. A series of system qualification radiographs have been acquired to determine the effective image acquisition parameters, resulting image quality, and the relationships between the two.

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Section: Treat Neutron Radiography Program and Facility Descriptionmentioning

confidence: 99%

Section: Upgrade From Film To Computed Radiographymentioning

confidence: 99%

Reactivation of the Transient Reactor Test (TREAT) Facility Neutron Radiography Program

Jensen

Craft

Papaioannou

et al. 2020

Neutron Radiography - WCNR-11

View full text Add to dashboard Cite

show abstract

“…Taking into account the advantage of the nondestructive research method, in recent years a large number of experiments in biology [4][5][6][7], geophysics [8][9][10], engineering [11][12][13], paleontology [14][15][16][17], archeology [18][19][20][21][22], etc. In [23,24], the possibilities of neutron radiography and tomography for visualizing the presence of organic substances inside metals are presented.…”

Section: Introductionmentioning

confidence: 99%

Studies of the internal structure of electrical devices and the archaeological heritage by the method of neutron radiography and tomography

Tashmetov

Yuldashev

Adizov

et al. 2021

УФЖ

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The paper presents the results of the study of a series of objects of electrical devices and archaeological heritage by the method of neutron radiography and tomography (VL-10 diode, spark plug, bell, ancient ring, stone). It is shown that the method of neutron radiography and tomography reliably works on samples made of various materials. Neutron radiographic and tomographic studies of the VL-10 diode gave an idea of the internal structure of the diode. Experiments with spark plugs have revealed the causes of its faulty function. According to the tomographic results of the bell, ring and stone, the heterogeneous areas in the internal volume of these objects were revealed. The results obtained are the basis for further research in the field of archaeological heritage and technical devices for special purposes.

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“…New nuclear reactor designs utilize a variety of fuels, which must be properly studied and characterized before they can be commercially manufactured. Neutron radiography provides more comprehensive information about the internal geometry of irradiated nuclear fuels and components than any other nondestructive examination technique to date [1]. Transfer method neutron radiography can be used to study irradiated materials despite the very high gamma radiation fields emitted from them [2,3,4].…”

Section: Introductionmentioning

confidence: 99%

Gamma Discriminating Scintillation Screens for Digital Transfer Method Neutron Imaging

Craft

Lehmann

Chuirazzi

et al. 2020

Neutron Radiography - WCNR-11

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A collaborative project between Idaho National Laboratory (INL) and Paul-Scherrer Institute (PSI) is investigating a new type of scintillation screen that uses ZnS scintillator material with a dysprosium neutron converter instead of traditional prompt converters such as 6 Li. Such a screen exposed to a neutron beam creates a latent image by neutron activation of the dysprosium in the scintillator screen. The activated screen is transported into a camera box allowing the camera to read a digital image from the photons emitted by the activated scintillation screen. Such an imaging system combines modern camera-based system architecture with the approach of traditional indirect transfer method radiography. The results show for the first time that the combination of dysprosium with a scintillation material like ZnS can produce light which is measurable under common camera-based detection conditions and that neutron radiographic images of reasonable quality can be produced. The resolution was poorer than expected at ~ 300 μm, but is on the order of the desired resolution of 100 μm. Potential improvements and additional converter materials may be investigated in the future that could increase the light output and improve spatial resolution.

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Applications of Neutron Radiography for the Nuclear Power Industry

Cited by 25 publications

References 40 publications

Reactivation of the Transient Reactor Test (TREAT) Facility Neutron Radiography Program

Reactivation of the Transient Reactor Test (TREAT) Facility Neutron Radiography Program

Studies of the internal structure of electrical devices and the archaeological heritage by the method of neutron radiography and tomography

Gamma Discriminating Scintillation Screens for Digital Transfer Method Neutron Imaging

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