Fast ion density and energy detection system and method for nuclear fusion devices
By combining the data acquisition methods of PPD photodiodes and spectrometers, multi-dimensional resolution diagnosis of fast ion density and energy detection systems was achieved, solving the problem of insufficient energy, time and spatial resolution in fast ion diagnosis, and providing high-precision spatiotemporal evolution information and reliable experimental evidence.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SOUTHWESTERN INST OF PHYSICS
- Filing Date
- 2026-04-27
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, fast ion diagnostics struggles to achieve synergistic optimization of energy, time, and spatial resolution in magnetically confined nuclear fusion devices. It also suffers from insufficient background radiation interference suppression and a lack of effective verification mechanisms for single diagnostic methods, resulting in limited measurement accuracy and reliability of fast ion density and energy distribution.
The data acquisition method employs a PPD photodiode and spectrometer cross-validation, combined with an optical collection module, fiber optic transmission module, multi-band detection module, and synchronous data acquisition module. Through two-dimensional spatially distributed optical images and multi-band spectral analysis, high spatial resolution acquisition of fast ion radiation signals is achieved. Background radiation interference is reduced through multi-dimensional data cross-validation and physical model verification.
It achieves high-precision measurement of fast ion density and energy distribution, overcoming the limitation of traditional diagnostic techniques that cannot simultaneously achieve time resolution and energy resolution, providing high-confidence spatiotemporal evolution information, and supporting the study of magnetohydrodynamic instability and real-time monitoring of fast ion loss behavior.
Smart Images
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