Design studies on electronics and data acquisition of a real time diamond spectrometer for the SPARC neutron camera
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View abstract on PubMed
Summary
This summary is machine-generated.Researchers developed a compact diamond sensor matrix for SPARC tokamak neutron diagnostics. This advancement improves dynamic range and energy spectral analysis for fusion research.
Area Of Science
- Nuclear Fusion Engineering
- Materials Science for Particle Detectors
Background
- Tokamak fusion devices require advanced diagnostics for neutron monitoring.
- Existing neutron detectors face limitations in dynamic range and pileup effects.
Purpose Of The Study
- To design and test a compact 2x2 diamond sensor matrix for the SPARC tokamak's neutron camera.
- To overcome dynamic range limitations and enable precise energy spectral analysis.
Main Methods
- Developed a 2x2 diamond sensor matrix with independent and redundant pixels.
- Engineered a radiation-hardened, 2 GHz bandwidth charge pre-amplifier using InGaP transistors.
- Designed a reversible high-voltage power supply to mitigate sensor polarization effects.
Main Results
- The diamond matrix overcomes single-sensor dynamic range constraints.
- The pre-amplifier demonstrated a fast signal development time (20-25 ns) for pileup mitigation.
- Periodical bias inversion was shown to maintain optimal sensor performance.
Conclusions
- The developed diamond matrix represents a significant advancement in tokamak neutron diagnostics.
- The integrated system, including the pre-amplifier and power supply, enhances measurement precision and reliability.
- Ongoing development of data acquisition and real-time processing will further boost neutron camera capabilities.
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