Development of a correlation ECE radiometer for electron temperature fluctuation measurements in Heliotron J.

التفاصيل البيبلوغرافية
العنوان: Development of a correlation ECE radiometer for electron temperature fluctuation measurements in Heliotron J.
المؤلفون: Poli, E., Laqua, H., Oosterbeek, J., Weir, Gavin M., Nagasaki, Kazunobu, Zhu, Jinxiang, Luo, Maoyuan, Okada, Hiroyuki, Minami, Takashi, Kado, Shinichiro, Kobayashi, Shinji, Yamamoto, Satoshi, Ohshima, Shinsuke, Konoshima, Shigeru, Nakamura, Yuji, Ishizawa, Akihiro, Lu, Xiang-xun, Zang, Linge, Marushchenko, Nikolai, Yoshimura, Yasuo
المصدر: EPJ Web of Conferences; 2019, Vol. 203, pN.PAG-N.PAG, 4p
مصطلحات موضوعية: RADIOMETERS, ELECTRON temperature, HELIOGRAPH, BANDWIDTHS, LABORATORY organisms
مستخلص: A radial correlation ECE radiometer diagnostic has been developed for electron temperature fluctuation measurements in the helical-axis heliotron device, Heliotron J. The radiometer consists of two heterodyne detection systems. One system scans the frequency of a local oscillator from 52 to 64 GHz with a single intermediate frequency filter, and the second system has a fixed frequency, 56 GHz local oscillator with four intermediate frequency filters. This frequency range covers measurement positions spanning from the plasma core to the half radius. Laboratory tests indicate that each system has narrow intermediate frequency bandwidth and high-sensitivity over a large dynamic range. During plasma experiments with NBI heating, radiation temperature fluctuation measured by the CECE radiometer decrease with increasing ECCD commensurate with previous measurements of energetic particle driven modes on Heliotron J. [ABSTRACT FROM AUTHOR]
Copyright of EPJ Web of Conferences is the property of EDP Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
قاعدة البيانات: Complementary Index
الوصف
تدمد:21016275
DOI:10.1051/epjconf/201920303013