基于JET第二次D-T活动 (DTE2) 经验的测量技术的开发,用于在D-T运行期间使用放射性玛射线光谱仪评估ITER的聚变功率
G Marcer1, F Scioscioli1,2, G Croci1
1Department of Physics, University of Milan-Bicocca, Milan, Italy.
The Review of scientific instruments
|August 5, 2024
概括
现在ITER辐射马射线光谱仪使用17 MeV马射线测量核聚变功率. 这种新方法通过结合多个视线提高了准确性,减少了核聚变功率估计的不确定性.
科学领域:
- 核聚变是一种核聚变.
- 等离子体物理学的物理学
- 频谱学是一种光谱学.
背景情况:
- 伊特尔辐射马射线光谱仪 (RGRS) 旨在监测失控的电子和α粒子.
- 精确的核聚变功率测量对于ITER运行和研究至关重要.
研究的目的:
- 通过使用RGRS在- (D-T) 操作期间测量聚变功率的新技术.
- 为了利用RGRS的多个视线 (LoS) 进行改进的核聚变功率诊断.
主要方法:
- 绝对测量17 MeV聚变马射线的绝对测量.
- 从等离子体到探测器的马射线传输的半分析计算.
- 结合来自多个RGRSLoS的数据,形成一个虚拟诊断.
主要成果:
- 展示了使用RGRS的核聚变功率测量技术.
- 利用多个LoS来降低对等离子体排放特征变化的敏感性.
- 与单个LoS相比,在总聚变功率估计中实现了系统性不确定性的降低.
结论:
- 在D-T运行期间,RGRS可以有效地用于精确的聚变功率测量.
- 结合多个RGRS视线可以提高测量可靠性,减少不确定性.
- 这种方法为ITER的核聚变能监测提供了有价值的诊断工具.
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