Characterization of diamond and organic scintillation detectors utilizing radiation sources for continuous plasma operation
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2024-08-01 |
| Journal | Review of Scientific Instruments |
| Authors | M. Iliasova, S. R. Mirfayzi, Mayank Rajput, K. Chandrasekhar, M. Fontana |
| Citations | 4 |
Abstract
Section titled āAbstractāThis paper provides a comprehensive study of neutron calibration methodologies, specifically highlighting the capabilities for n-γ discrimination in diamond and EJ-309, and stilbene scintillation detectors. The calibration process detailed in this study includes pulse height analysis and pulse shape discrimination, relying on the analysis of charge deposition resulting from both γ and neutron interactions. Utilizing 60Co and 252Cf radiation sources, the energy spectra of these sources are obtained. The characterized detectors were used in ST40 experiments and allowed acquiring neutron signal during a plasma shot with good agreement among diamond and scintillation detectors. Then, the diamond detector was cross-calibrated against indium activation foils placed at the same location in proximity to the ST40 during plasma shots: both detectors measured a neutron flux of ā106 cmā2 sā1 at ā1 m distance from the tokamak center, and the discrepancy between the diamond detector and the activation foils is ā25%.
Tech Support
Section titled āTech SupportāOriginal Source
Section titled āOriginal SourceāReferences
Section titled āReferencesā- 2018 - Recent progress in fast-ion diagnostics for magnetically confined plasmas [Crossref]
- 2019 - Measuring fast ions in fusion plasmas with neutron diagnostics at JET [Crossref]
- 2019 - Advanced neutron spectroscopy in fusion research [Crossref]
- 2015 - Calibration of time of flight detectors using laser-driven neutron source [Crossref]
- 2011 - The compact neutron spectrometer at ASDEX Upgrade [Crossref]
- 2021 - Measurements of neutron fluxes from tokamak plasmas using a compact neutron spectrometer [Crossref]
- 2022 - Neutron diagnostic system at the Globus-M2 tokamak [Crossref]
- 2014 - A diamond based neutron spectrometer for diagnostics of deuterium-tritium fusion plasmas [Crossref]
- 2002 - Study of d-t neutron energy spectra at JET using natural diamond detectors [Crossref]
- 2020 - Calibration of neutron spectrometers based on a BC-501A liquid scintillator using the neutron-gamma coincidence method [Crossref]