研究目的
To characterize the plasma produced by laser interaction with a double stream gas-pu? target source using Si and SiC detectors, and to evaluate their differences in terms of plasma stability, time trace profile, and characteristics of the gas-pu? target source.
研究成果
The study demonstrates that SiC detectors can be effectively used to monitor plasma in short wavelength ranges, offering advantages over traditional Si detectors in terms of sensitivity and resistance to high radiation doses and temperatures. The TM-SiC detector, with its thin and uniform metallization, shows superior performance in terms of signal yield and linearity, especially at high gas pressures. Further improvements in detector design could enhance their applicability in monitoring X-ray production in innovative microscopes and tomography systems.
研究不足
The study is limited by the specific conditions of the laser and gas-pu? target interactions, and the performance of the detectors under high photon fluxes and different gas pressures. Potential areas for optimization include the geometry and configuration of the SiC detectors to avoid saturation and charge recombination effects.
1：Experimental Design and Method Selection:
Employed a 10 Hz repetition rate Nd:YAG laser to irradiate different gas-pu? targets (Argon, Xenon, and Sulfur hexafluoride) at different pressures (1–10 bar). The emission was filtered using Titanium, Aluminium, Zirconium, and Calcium fluoride filters to narrow down the broad-band emission of the generated plasma.
2：Sample Selection and Data Sources:
Used a double stream gas-pu? target source to produce plasma in different wavelength ranges (ultraviolet, extreme ultraviolet, and soft X-rays).
3：List of Experimental Equipment and Materials:
Included an Nd:YAG laser, gas-pu? targets, filters (Titanium, Aluminium, Zirconium, Calcium fluoride), Si and SiC detectors, and a fast storage oscilloscope.
4：Experimental Procedures and Operational Workflow:
The laser was focused onto the gas-pu? target source, and the emitted plasma was monitored using the detectors. The signals were stored by the oscilloscope as a function of time.
5：Data Analysis Methods:
The signals from the SiC detectors were compared with a calibrated traditional silicon detector, evaluating their differences in terms of plasma stability, time trace profile, and characteristics of the gas-pu? target source.
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