Darrow D S
Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543-0451, USA.
Rev Sci Instrum. 2008 Feb;79(2 Pt 1):023502. doi: 10.1063/1.2827514.
A scintillator based energetic ion loss detector has been built and installed on the National Spherical Torus Experiment (NSTX) [Synakowski et al., Nucl. Fusion 43, 1653 (2000)] to measure the loss of neutral beam ions. The detector is able to resolve the pitch angle and gyroradius of the lost energetic ions. It has a wide acceptance range in pitch angle and energy, and is able to resolve the full, one-half, and one-third energy components of the 80 keV D neutral beams up to the maximum toroidal magnetic field of NSTX. Multiple Faraday cups have been embedded behind the scintillator to allow easy absolute calibration of the diagnostic and to measure the energetic ion loss in several ranges of pitch angle with good time resolution. Several small, vacuum compatible lamps allow simple calibration of the scintillator position within the field of view of the diagnostic's video camera.
一个基于闪烁体的高能离子损失探测器已被制造出来并安装在国家球形托卡马克实验装置（NSTX）上[西纳科夫斯基等人，《核聚变》43, 1653 (2000)]，用于测量中性束离子的损失。该探测器能够分辨损失的高能离子的俯仰角和回旋半径。它在俯仰角和能量方面具有较宽的接受范围，并且能够分辨高达NSTX最大环向磁场时80 keV D中性束的全能量、二分之一能量和三分之一能量分量。多个法拉第杯被嵌入闪烁体后方，以便于对诊断进行简单的绝对校准，并以良好的时间分辨率测量几个俯仰角范围内的高能离子损失。几个小型的、与真空兼容的灯使得能够在诊断摄像机视场内对闪烁体位置进行简单校准。
