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Preliminary result of an advanced tangential X-ray pinhole camera system with a duplex MWPC on KSTAR plasma |
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| Authors: | Siwon Jang Sang Gon Lee Chang Hwy Lim Hyun Ok Kim Sang Yeol Kim Seung Hun Lee Joohwan Hong Juhyeok Jang Taemin Jeon Myung Kook Moon Wonho Choe |
| Institution: | 1. Department of Physics, Korea Advanced Institute of Science and Technology, 291 Gwahak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea;2. National Fusion Research Institute, 113 Gwahak-ro, Yuseong-gu, Daejeon 305-333, Republic of Korea;3. Korea Atomic Energy Research Institute, 989-111 Daedeok-daero, Yuseong-gu, Daejeon 305-353, Republic of Korea;4. Notice Korea Ltd., 901 ho, K-center, 25, Simin-daero 248 beon-gil, Dongan-gu, Anyang-si, Gyeonggi-do 431-815, Republic of Korea |
| Abstract: | An advanced tangential X-ray pinhole camera (TXPC) has been developed for KSTAR by utilizing a 2-D duplex multi-wire proportional counter (MWPC) detector. The KSTAR MWPC employs a 2-D parallel type readout system for high temporal resolution and adopts a duplex type for the capability of electron temperature measurement via the multi-color method. This paper presents the performance test result of the developed MWPC system utilizing a Fe-55 X-ray source. As a preliminary experimental result from the 2012 KSTAR campaign, the clear presentation of sawtooth activities and its frequency change, and 2-D plasma images during the vertical disruption event are given. |
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