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A Fast Neutron Radiography System Using a High Yield Portable DT Neutron Source
Article

Light Yield Response of Neutron Scintillation Screens to Sudden Flux Changes

1
Heinz Maier-Leibnitz Zentrum (MLZ), Lichtenbergstr. 1, D-85748 Garching, Germany
2
RC Tritec AG, Speicherstrasse 60 a, CH-9053 Teufen, Switzerland
*
Author to whom correspondence should be addressed.
J. Imaging 2020, 6(12), 134; https://doi.org/10.3390/jimaging6120134
Received: 29 October 2020 / Revised: 2 December 2020 / Accepted: 2 December 2020 / Published: 5 December 2020
(This article belongs to the Special Issue Neutron Imaging)
We performed a study of the initial and long term light yield of different scintillation screen mixtures for neutron imaging during constant neutron irradiation. We evaluated the light yield during different neutron flux levels as well as at different temperatures. As high frame rate imaging is a topic of interest in the neutron imaging community, the decay characteristics of scintillation screens are of interest as well. Hence, we also present and discuss the decay behavior of the different scintillation screen mixtures on a time scale of seconds. We have found that the decay time of ZnS:Cu/6LiF excited with a high neutron flux is potentially much longer than typically stated. While most of the tested scintillation screens do not provide a significant improvement over currently used scintillation screen materials, Zn(Cd)S:Ag/6LiF seems to be a good candidate for high frame rate imaging due to its high light yield, long-term stability as well as fast decay compared to the other evaluated scintillation screens. View Full-Text
Keywords: high frame rate neutron imaging; scintillation screens; decay time; neutron imaging high frame rate neutron imaging; scintillation screens; decay time; neutron imaging
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MDPI and ACS Style

Neuwirth, T.; Walfort, B.; Sebold, S.; Schulz, M. Light Yield Response of Neutron Scintillation Screens to Sudden Flux Changes. J. Imaging 2020, 6, 134. https://doi.org/10.3390/jimaging6120134

AMA Style

Neuwirth T, Walfort B, Sebold S, Schulz M. Light Yield Response of Neutron Scintillation Screens to Sudden Flux Changes. Journal of Imaging. 2020; 6(12):134. https://doi.org/10.3390/jimaging6120134

Chicago/Turabian Style

Neuwirth, Tobias, Bernhard Walfort, Simon Sebold, and Michael Schulz. 2020. "Light Yield Response of Neutron Scintillation Screens to Sudden Flux Changes" Journal of Imaging 6, no. 12: 134. https://doi.org/10.3390/jimaging6120134

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