Gamma Discriminating Scintillation Screens for Digital Transfer Method Neutron Imaging
Abstract
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 6Li. 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.
- Authors:
-
[1];
[2];
[2];
[1];
[2]
- Idaho National Lab. (INL), Idaho Falls, ID (United States)
- Paul Scherrer Inst., Villigen (Switzerland). Lab. for Neutron Scattering and Imaging
- Publication Date:
- Research Org.:
- Idaho National Lab. (INL), Idaho Falls, ID (United States)
- Sponsoring Org.:
- USDOE Office of Nuclear Energy (NE)
- OSTI Identifier:
- 1678688
- Report Number(s):
- INL/JOU-19-55508-Rev000
Journal ID: ISSN 2474-395X; TRN: US2204186
- Grant/Contract Number:
- AC07-05ID14517
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Materials Research Proceedings (Online)
- Additional Journal Information:
- Journal Name: Materials Research Proceedings (Online); Journal Volume: 15; Conference: 11.World Conference on Neutron Radiography (WCNR-11), Sydney (Australia), 2-7 Sep 2018; Journal ID: ISSN 2474-395X
- Publisher:
- Materials Research Forum LLC
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 46 - INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; Neutron Imaging; Scintillator Screen; Indirect Transfer Method; Digital Imaging; Post Irradiation Examination; Nondestructive Evaluation
Citation Formats
Craft, Aaron E., Grünzweig, Christian, Morgano, Manuel, Chuirazzi, William C., and Lehmann, Eberhard. Gamma Discriminating Scintillation Screens for Digital Transfer Method Neutron Imaging. United States: N. p., 2020.
Web. doi:10.21741/9781644900574-12.
Craft, Aaron E., Grünzweig, Christian, Morgano, Manuel, Chuirazzi, William C., & Lehmann, Eberhard. Gamma Discriminating Scintillation Screens for Digital Transfer Method Neutron Imaging. United States. https://doi.org/10.21741/9781644900574-12
Craft, Aaron E., Grünzweig, Christian, Morgano, Manuel, Chuirazzi, William C., and Lehmann, Eberhard. Sun .
"Gamma Discriminating Scintillation Screens for Digital Transfer Method Neutron Imaging". United States. https://doi.org/10.21741/9781644900574-12. https://www.osti.gov/servlets/purl/1678688.
@article{osti_1678688,
title = {Gamma Discriminating Scintillation Screens for Digital Transfer Method Neutron Imaging},
author = {Craft, Aaron E. and Grünzweig, Christian and Morgano, Manuel and Chuirazzi, William C. and Lehmann, Eberhard},
abstractNote = {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 6Li. 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.},
doi = {10.21741/9781644900574-12},
journal = {Materials Research Proceedings (Online)},
number = ,
volume = 15,
place = {United States},
year = {Sun Jan 05 00:00:00 EST 2020},
month = {Sun Jan 05 00:00:00 EST 2020}
}
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Figure 1: Illustration of the digitial indirect neutron imaging with scintillator screen concept. (Left) The screen is placed in the beamline and exposed behind the imaging object. (Right) The screen is then transported away from the fuel into the camera box and the digital camera captures the latent image onmore »
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