Neutron fluctuation measurements on TFTR
Neutron fluctuation measurements on TFTR
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TFTR 上的中子涨落测量
DOI：
10.1063/1.1139176
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发表时间：
1986
期刊：
影响因子：
--
通讯作者：
W. Heidbrink
中科院分区：
文献类型：
--
作者：
W. Heidbrink
在托卡马克聚变试验堆（TFTR）上用塑料挡板测量了中子产额的涨落。来自放大器的光通过丙烯酸棒或光纤电缆耦合到以电流模式运行的光电倍增管。通过与ZnS（6Li）闪烁体的信号进行比较，实现了对硬X射线的鉴别。这些测量是有用的氘丸沉积的研究，在主要的径向压缩过程中的束离子的加速，和MHD不稳定性。还提出了在芯块注入期间使用中子波动测量来测量中性束密度分布和Qequivdt的技术。
Measurements of fluctuations in the neutron yield are made on the tokamak fusion test reactor (TFTR) with plastic scintillators. Light from the scintillators is coupled through acrylic rods or fiber‐optic cables to photomultipliers operated in current mode. Discrimination against hard x rays is accomplished through comparison with the signal from a ZnS(6Li) scintillator. These measurements are useful in studies of deuterium pellet deposition, of the acceleration of beam ions during major radial compression, and of MHD instabilities. Techniques for measuring the neutral beam density profile and Qequivdt using neutron fluctuation measurements during pellet injection also have been proposed.