Optics-Based First Measurement of Currents on a Load of X-Pinch System at Seoul National University

POSTER

Abstract

A X-pinch system is capable of generating high energy density plasmas with pulsed and large currents through a pair of crossed thin wires. Recently, we have developed a modular X-pinch device at Seoul National University [1]. With an aim of obtaining basic characteristics of the X-pinch system, we have developed and installed an optics-based current sensor utilizing the effect of Faraday rotation. We use a 100mW 1310nm cw laser and a photo-detector measuring light intensity passing through a single mode fiber acting as a sensor wound around the load and a polarizing fiber acting as an analyzer. We present configuration of our optics-based current measurement system and its first measurement together with a Rogowski coil measurement results for comparisons.

*This work was supported by the Defense Research Laboratory Program of the Defense Acquisition Program Administration and the Agency for Defense Development of Republic of Korea.

Publication: [1] Jongheyon Ryu et al., Rev. Sci. Instrum. 92, 053533 (2021)

Presenters

  • Seongmin Choi

    • Department of Nuclear and Quantum Engineering, KAIST, Daejeon, 34141, S. Korea

Authors

  • Seongmin Choi

    • Department of Nuclear and Quantum Engineering, KAIST, Daejeon, 34141, S. Korea

  • H.J. Woo

    • Agency of Defense Development, Daejeon, 34186, S. Korea

  • Seunggi Ham

    • Department of Nuclear Engineering, Seoul National University, Seoul, 08826, S. Korea

  • Jonghyeon Ryu

    • Department of Nuclear Engineering, Seoul National University, Seoul, 08826, S. Korea

  • Kyoung-Jae Chung

    • Department of Nuclear Engineering, Seoul National University, Seoul, 08826, S. Korea

  • Y. S. Hwang

    • Department of Nuclear Engineering, Seoul National University, Seoul, 08826, S. Korea

  • Young-chul Ghim

    • Department of Nuclear and Quantum Engineering, KAIST, Daejeon, 34141, S. Korea
    • KAIST