GLAST is a small spherical tokamak with an insulating vacuum vessel of pyrex. It has major and minor radii of 20 and 10 cm, respectively. Magnetic measurements play a fundamental role in plasma breakdown and start-up studies. This paper presents the development, fabrication, calibration, and installation of magnetic diagnostics on GLAST III Tokamak. Magnetic diagnostics consist of the flux loops, magnetic field pickup sensors, and Rogowski coil. The signals obtained from various coils are integrated with passive analog integrators. The experimental results obtained from these magnetic diagnostics are presented and discussed.

中文翻译：

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玻璃球形托卡马克（GLAST）磁诊断仪的开发

GLAST是一种小型球形托卡马克，带有一个高强度的绝热聚苯乙烯容器。它的主要和次要半径分别为20和10 cm。磁测量在等离子体击穿和启动研究中起着基本作用。本文介绍了在GLAST III Tokamak上进行磁诊断的开发，制造，校准和安装。磁诊断包括磁通回路，磁场传感器和Rogowski线圈。从各种线圈获得的信号与无源模拟积分器集成在一起。提出并讨论了从这些磁性诊断中获得的实验结果。