S Normile, D Vezinet, C Perks, F Bombarda, G Verona-Rinati, J E Rice, C Verona, A M Raso, M Angelone
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引用次数: 0
摘要
许多托卡马克装置中用于软 X 射线探测的腔内硅二极管阵列对中子损伤非常敏感,因此不适合 SPARC 这样的燃烧等离子体装置。在这种装置中,硅二极管需要放置在远离等离子体的地方,从而限制了它们的视场,或者可以使用其他探测器。在这里,我们将介绍一种包含化学气相沉积单晶金刚石阵列的照相机的设计,这种照相机将被放置在 SPARC 托卡马克的上下端口塞中,具有足够大的极射截面视野,以便进行层析反演。本文介绍的相机设计经过优化,可提供极环形截面的宽视场。模拟等离子体条件用于估算该探测器阵列将接收的 X 射线信号,并对托卡马克内的相机位置进行微调。
Design of a diamond-based in-vessel soft x-ray detector for the SPARC tokamak.
The in-vessel silicon diode arrays that are used for soft x-ray detection in many tokamaks are sensitive to neutron damage, making them unsuitable for burning plasma devices such as SPARC. In such a device, the silicon diodes would need to be placed far from the plasma-limiting their field of view-or an alternative detector could be used. Here, we present the design of a camera containing an array of chemical vapor deposition single-crystal diamonds, which will be placed in the upper and lower port plugs of the SPARC tokamak with a large enough view of the poloidal cross section to enable tomographic inversion. The camera design presented here is optimized to provide a wide field of view of the poloidal cross section. Simulated plasma conditions are used to estimate the x-ray signal that this detector array will receive and to fine-tune the camera placement within the tokamak.
期刊介绍:
Review of Scientific Instruments, is committed to the publication of advances in scientific instruments, apparatuses, and techniques. RSI seeks to meet the needs of engineers and scientists in physics, chemistry, and the life sciences.