Status and prospect of JT-60 plasma control and diagnostic data processing systems for advanced operation scenarios

Kurihara, Kenichi; Yonekawa, Izuru; Kawamata, Yoichi; Sueoka, Michiharu; Hosoyama, Hiroki*; Sakata, Shinya; Oshima, Takayuki; Sato, Minoru; Kiyono, Kimihiro; Ozeki, Takahisa

Fusion Engineering and Design, 81(15-17), p.1729 - 1734, 2006/07

https://doi.org/10.1016/j.fusengdes.2006.04.058

A large tokamak fusion device JT-60 is expected to explore more advanced tokamak discharge scenario towards the ITER and a future power reactor. We believe the following experimental issues are expected to be solved in JT-60. To clarify how to keep a steady-state plasma with high performance, and how to avoid plasma instabilities almost completely. By stimulus of this motivation, several essential development and modifications of plasma control and data acquisition systems have been performed in JT-60. In this report, we discuss the developments to improve the JT-60 plasma control and data acquisition systems. In addition, a future plasma control and data acquisition systems leading to a standard design for a power reactor is envisaged on the basis of the 20-year plasma operation experiences.

None

Sato, Shinji; Amemiya, Kiyoshi*; Yamagata, Junji*; Hirose, Ikuro; Ishikawa, Hirohisa; Yusa, Yasuhisa; Sasaki, Noriaki

PNC TN8410 90-060, 106 Pages, 1990/06

PNC-TN8410-90-060.pdf:2.3MB

None

Development of ASD circuit for large detector capacitance

Suzuki, Kazuki

no journal, , 

Hadron property in finite density will be examined at High-Momentum beamline in J-PARC. It is required to reduce interaction rate (10 MHz) to trigger rate (1 kHz) with trigger system. Moreover, we reduce the number of channel for large solid angle detectors. Thus, Hadron blind detector which is used in this experiment have 6 nF of detector capacitance. We are developing Amplify-Shaper-Discriminator (ASD) for reducing noise. I will talk about this ASD development.