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Calibration and test of a 6 LiF-diamond detector for the HCPB mock-up experiment at JET

TitleCalibration and test of a 6 LiF-diamond detector for the HCPB mock-up experiment at JET
Publication TypeArticolo su Rivista peer-reviewed
Year of Publication2019
AuthorsAngelone, Massimo, Fonnesu N., Colangeli A., Moro F., Pillon M., and Villari R.
JournalFusion Engineering and Design
ISSN09203796
KeywordsBreeding blankets, Calibration, Diamond detectors, Diamonds, Frascati neutron generators, Independent measurement, Intelligent systems, ITER-TBM, Lithium compounds, MCNP simulations, Mockups, Monte Carlo methods, Neutron sources, Neutronics performance, Single crystal diamond, Single crystals, tritium, Tritium production rate
Abstract

One relevant experiment selected for the DT phase at JET is the irradiation of the HCPB-TBM mock-up of ITER which will be located in front of the horizontal port of Octant-8. The neutronics performances of the HCPB-TBM will be studied through independent measurement techniques and the experimental quantities compared to the results of Monte Carlo simulation. Of paramount importance is the measurement of the tritium production rate (TPR) to be performed by using a single crystal diamond detector covered with a thin layer of 6 LiF (LiDia detector). This requires the knowledge of the 6 Li mass. In this work the 6 Li mass calibration of the selected LiDia detector was first performed in a well characterized thermal neutron flux spectrum. Furthermore, a performance test of the detector was carried out by locating it inside a polyethylene phantom irradiated with 14 MeV neutrons at the Frascati Neutron generator. The experimental set-up was accurately simulated by using the MCNP5 code and the TPR compared to the measured one. The goal was to point out and assess the issues with the measurement method. © 2019

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URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85062714600&doi=10.1016%2fj.fusengdes.2019.01.158&partnerID=40&md5=eb44f6521877be132ba0ebc77ca0f539
DOI10.1016/j.fusengdes.2019.01.158
Citation KeyAngelone2019