Diamagnetic Loop Measurement in the Central Cell of The Hanbit Magnetic Mirror Device

Diamagnetic flux is measured by using diamagnetic loops in the central cell of the Hanbit magnetic mirror device. Diamagnetic loop measurements are carried out during rf discharges with a frequency of 3.5 MHz or 3.75MHz. In the measurement, the rf power is varied from 60 kW to 200kW, and the vacuum magnetic field of 0.130 T – 0.242 T is applied in the central cell. The present status of the diamagnetic loop measurements is described and experimental results from diamagnetic flux measurements under several Hanbit operational conditions are presented. The purpose of this work is preparation of a database (such as the dependence of the diamagnetic flux upon the applied vacuum magnetic field and rf power) for physics studies in the Hanbit device.