Experimental validation of an imaging neutral particle analyzer in the EAST
An imaging neutral particle analyzer (INPA) has been successfully designed and implemented in the Experimental Advanced Superconducting Tokamak to detect fast ions (FIs). The system capitalizes on carbon foils to ionize charge exchange neutral particles and utilizes scintillator screens to differentiate the energy and radial distribution of the particles. The detection characteristics of the pitch angle profile and energy resolution are illustrated, and the modeling-based energy calibration has been validated with the experimental data. Furthermore, the FI redistribution during sawtooth crashes has been effectively recorded by the INPA, manifesting its functionality.
Authors
- M. Xu (ORCID: https://orcid.org/0000-0002-5142-4474)
- Huishan Cai (ORCID: https://orcid.org/0000-0002-2500-3721)
- Hailin Zhao (ORCID: https://orcid.org/0000-0002-6298-1217)
- Haiqing Liu (ORCID: https://orcid.org/0000-0001-6892-358X)
- Yang Liu (ORCID: https://orcid.org/0009-0004-6823-3086)
Institutions
- University of Science and Technology of China (CN)
- Chinese Academy of Sciences (CN)
- Hefei Institutes of Physical Science (CN)
Publication Details
- Journal
- Review of Scientific Instruments
- Published
- 2025-02-01
- DOI
- https://doi.org/10.1063/5.0241347
- Citations
- 3
- Primary Topic
- Magnetic confinement fusion research
- Type
- article
- Field-Weighted Citation Impact
- 5.61
Funders
- National Natural Science Foundation of China
- National Magnetic Confinement Fusion Program of China