研究目的
Investigating the gain depletion of X-ray framing cameras in high energy laser experiments to improve the accuracy of X-ray intensity measurements.
研究成果
The new model, including gain depletion, provides quantitatively accurate results compared to experimental data, confirming that gain depletion occurs in high energy laser experiments. For accurate X-ray intensity measurements, the XFC should be used with limited incident photon flux to ensure signal linearity.
研究不足
The model's expansion to pulse voltage operation and inclusion of other voltage drops due to ohmic and dispersive losses are areas for future improvement. Additionally, more data are needed to further verify the model.
1：Experimental Design and Method Selection:
The study involves developing a numerical model of an X-ray framing camera (XFC) to analyze its X-ray image, including gain depletion. The model is evaluated through tabletop laser experiments and high energy laser experiments.
2：Sample Selection and Data Sources:
The experiments use a KrF excimer laser for tabletop experiments and a Gekko XII laser system for high energy laser experiments to generate X-rays.
3：List of Experimental Equipment and Materials:
Equipment includes an X-ray framing camera, KrF excimer laser, Gekko XII laser system, and LFEX laser.
4：Experimental Procedures and Operational Workflow:
The procedure involves applying DC or pulse voltage to the first MCP of the XFC, measuring signal intensities, and comparing calculated results with experimental data.
5：Data Analysis Methods:
The analysis involves calculating the gain of the MCPs, estimating the number of input and output electrons, and comparing the signal intensity ratios from experiments with model predictions.
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