设计研究电子和数据采集实时钻石光谱仪的SPARC中子相机的电子和数据采集
M Petruzzo1, A Celora1, G Croci1,2
1Department of Physics, University of Milano-Bicocca, Milan 20126, Italy.
The Review of scientific instruments
|November 12, 2024
概括
研究人员开发了一个紧的钻石传感器矩阵,用于SPARCtokamak中子诊断. 这一进步改善了用于核聚变研究的动态范围和能量光谱分析.
科学领域:
- 核聚变工程 核聚变工程
- 用于粒子探测器的材料科学
背景情况:
- 托卡马克核聚变装置需要先进的诊断来监测中子.
- 现有的中子探测器在动态范围和堆积效应方面存在局限性.
研究的目的:
- 为SPARC tokamak的中子摄像头设计和测试一个紧的2x2钻石传感器矩阵.
- 为了克服动态范围的限制,并使精确的能量光谱分析.
主要方法:
- 开发了一个2x2钻石传感器矩阵,具有独立和冗余的像素.
- 通过使用InGaP晶体管,设计了一种耐辐射的2GHz带宽充电预放大器.
- 设计了一个可逆的高压电源,以减轻传感器偏振效应.
主要成果:
- 钻石矩阵克服了单个传感器的动态范围限制.
- 前放大器表现出快速信号开发时间 (20-25 ns) 以缓解堆积.
- 定期偏差反转被证明可以保持最佳的传感器性能.
结论:
- 开发的钻石矩阵代表了托卡马克中子诊断的重大进步.
- 集成系统,包括预放大器和电源,提高了测量精度和可靠性.
- 数据采集和实时处理的持续发展将进一步提高中子相机的能力.
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