Next Article in Journal
DocCreator: A New Software for Creating Synthetic Ground-Truthed Document Images
Next Article in Special Issue
Small Angle Scattering in Neutron Imaging—A Review
Previous Article in Journal
Preliminary Results of Clover and Grass Coverage and Total Dry Matter Estimation in Clover-Grass Crops Using Image Analysis
Previous Article in Special Issue
Neutron Imaging of Laser Melted SS316 Test Objects with Spatially Resolved Small Angle Neutron Scattering
Article Menu
Issue 4 (December) cover image

Export Article

Open AccessArticle
J. Imaging 2017, 3(4), 60; doi:10.3390/jimaging3040060

Performance of the Commercial PP/ZnS:Cu and PP/ZnS:Ag Scintillation Screens for Fast Neutron Imaging

1
Heinz Maier-Leibnitz Zentrum (MLZ), Technische Universität München, Lichtenbergstr. 1, 85748 Garching, Germany
2
Bavarian Research Institute of Experimental Geochemistry and Geophysics (BGI), University of Bayreuth, 95440 Bayreuth, Germany
3
RC Tritec AG/LumiNova AG, Speicherstrasse 60 a, CH-9053 Teufen, Switzerland
4
Laboratory for Neutron Scattering and Imaging (LNS), Paul Scherrer Institut, WBBA 108, CH-5232 Villigen, Switzerland
5
ZTWB Radiochemie München, Technische Universität München, Lichtenbergstr. Walther-Meißner-Str. 3, 85748 Garching, Germany
*
Author to whom correspondence should be addressed.
Received: 31 October 2017 / Revised: 1 December 2017 / Accepted: 7 December 2017 / Published: 10 December 2017
(This article belongs to the Special Issue Neutron Imaging)
View Full-Text   |   Download PDF [2659 KB, uploaded 10 December 2017]   |  

Abstract

Fast neutron imaging has a great potential as a nondestructive technique for testing large objects. The main factor limiting applications of this technique is detection technology, offering relatively poor spatial resolution of images and low detection efficiency, which results in very long exposure times. Therefore, research on development of scintillators for fast neutron imaging is of high importance. A comparison of the light output, gamma radiation sensitivity and spatial resolution of commercially available scintillator screens composed of PP/ZnS:Cu and PP/ZnS:Ag of different thicknesses are presented. The scintillators were provided by RC Tritec AG company and the test performed at the NECTAR facility located at the FRM II nuclear research reactor. It was shown that light output increases and the spatial resolution decreases with the scintillator thickness. Both compositions of the scintillating material provide similar light output, while the gamma sensitivity of PP/ZnS:Cu is significantly higher as compared to PP/ZnS:Ag-based scintillators. Moreover, we report which factors should be considered when choosing a scintillator and what are the limitations of the investigated types of scintillators. View Full-Text
Keywords: fast neutron imaging; neutron scintillator screens; neutron imaging detectors, ZnS phosphors fast neutron imaging; neutron scintillator screens; neutron imaging detectors, ZnS phosphors
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Makowska, M.G.; Walfort, B.; Zeller, A.; Grünzweig, C.; Bücherl, T. Performance of the Commercial PP/ZnS:Cu and PP/ZnS:Ag Scintillation Screens for Fast Neutron Imaging. J. Imaging 2017, 3, 60.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
J. Imaging EISSN 2313-433X Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top