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Performance of a Boron-Coated-Straw-Based HLNCC for International Safeguards Applications...

by Angela S Moore, Stephen Croft, Robert D Mcelroy Jr, Liang Sun, Jason P Hayward
Publication Type
Conference Paper
Journal Name
IEEE Transactions on Nuclear Science
Publication Date
Page Numbers
2690 to 2697
Volume
64
Issue
10
Conference Name
IEEE NSS & MIC 2016
Conference Location
Strasbourg, France
Conference Date
-

3He gas has been used in various scientific and security applications for decades, but it is now in short supply. Alternatives to 3He detectors are currently being integrated and tested in neutron coincidence counter designs, of a type which are widely used in nuclear safeguards for nuclear materials assay. A boron-coated-straw-based design, similar to the High-Level Neutron Coincidence Counter-II, was built by Proportional Technologies Inc., and has been tested by the Oak Ridge National Laboratory (ORNL) at both the JRC in Ispra and ORNL. Characterization measurements, along with nondestructive assays of various plutonium samples, have been conducted to determine the performance of this coincidence counter replacement in comparison with other similar counters. This paper presents results of these measurements.