Micro-Pocket Fission Detectors (MPFDs) for in-core neutron detection. (January 2016)

• Record Type: Journal Article
• Authors: Reichenberger, Michael A.; Unruh, Troy C.; Ugorowski, Philip B.; Ito, Takashi; Roberts, Jeremy A.; Stevenson, Sarah R.; Nichols, Daniel M.; McGregor, Douglas S.
• Is Part Of: Annals of nuclear energy. Volume 87:Part 2(2016:Jan.)
• Page Start: 318
• Page End: 323
• Publication Date: 2016-01
• Subjects: Reactor instrumentation -- Fission chamber -- Neutron detector -- Micro-Pocket Fission Detectors; Nuclear energy -- Periodicals; Nuclear engineering -- Periodicals; 621.4805
• DOI: 10.1016/j.anucene.2015.08.022
• Languages: English
• ISSNs: 0306-4549

Abstract

Highlights: Update of Micro-Pocket Fission Detector (MPFD) development. Stackable detector design fabricated and tested in-core. Refinements in composition optimization and electrodeposition. Abstract: Neutron sensors capable of real-time measurement of neutrons in high-flux environments are necessary for tests aimed at demonstrating the performance of experimental nuclear reactor fuels and materials in material test reactors (MTRs). In-core Micro-Pocket Fission Detectors (MPFDs) have been studied at Kansas State University for many years. Previous MPFD prototypes were successfully built and tested with promising results. Efforts are now underway to develop advanced MPFDs with radiation-resistant, high-temperature materials capable of withstanding irradiation test conditions in high performance material and test reactors. Stackable MPFDs have been designed, built, and successfully demonstrated as in-core neutron sensors. Advances in the electrodeposition and measurement of neutron reactive material, along with refinements to composition optimization simulations, have enhanced the capabilities of contemporary MPFDs.