Tokamak Fusion Test Reactor x‐ray imaging diagnostic

Tokamak Fusion Test Reactor x‐ray imaging diagnostic
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托卡马克聚变试验堆X射线成像诊断

DOI:
10.1063/1.1138187
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发表时间:
1985
影响因子:
1.6
通讯作者:
K. Young
K. Young
中科院分区:
工程技术4区
文献类型:
--
作者:
K. Hill;S. Goeler;M. Bitter;W. Davis;L. Dudek;E. Fredd;L. C. Johnson;J. Kiraly;K. McGuire;J. Montague;E. Moshey;N. Sauthoff;K. Young

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圆弧视图托卡马克聚变测试反应堆 (TFTR) 等离子体上的 64 个硅表面势垒二极管阵列,通过狭缝孔径提供 200 eV-15 keV 范围内的 X 射线发射的极向成像。推断有关磁流体动力学 (MHD) 不稳定性、破坏、辐射、杂质传输、电子温度和电子热导率的信息。空间分辨率为2.5厘米。可移动的吸收箔阵列提供能量选择。前置放大器-放大器对的增益为 0.05-100 V/μA。两个输出提供 (1) 40、80 和 300 Hz 以及 (2) 40、80 和 600 kHz 滤波。信号以高达 500 kHz 的速率进行数字化,并存储在 128K(整个系统)内存中。箔片、增益和滤波器可通过控制室的计算机进行选择。
An array of 64 silicon surface‐barrier diodes on a circular arc view Tokamak Fusion Test Reactor (TFTR) plasmas through a slot aperture to provide poloidal imaging of x‐ray emission in the 200 eV–15 keV range. Information is inferred on magnetohydrodynamic (MHD) instabilities, disruptions, radiation, impurity transport, electron temperature, and electron thermal conductivity. Spatial resolution is 2.5 cm. Movable absorber foil arrays provide energy selection. Preamplifier–amplifier pairs have gains of 0.05–100 V/μA. Two outputs are provided with (1) 40‐, 80‐, and 300‐Hz and (2) 40‐, 80‐, and 600‐kHz filtering. The signals are digitized at rates up to 500 kHz and stored in 128K (total system) memory. Foils, gains, and filters are selectable from the control room by a computer.