Seo Dongcheol, Peterson B J, Lee Seung Hun
National Fusion Research Institute, 113 Gwahangno, Yuseong-gu, Daejeon 305-333, Korea.
Rev Sci Instrum. 2010 Oct;81(10):10E128. doi: 10.1063/1.3496992.
The resistive bolometers have been successfully installed in the midplane of L-port in Korea Superconducting Tokamak Advanced Research (KSTAR) device. The spatial and temporal resolutions, 4.5 cm and ∼1 kHz, respectively, enable us to measure the radial profile of the total radiated power from magnetically confined plasma at a high temperature through radiation and neutral particles. The radiated power was measured at all shots. Even at low plasma current, the bolometer signal was detectable. The electron cyclotron resonance heating (ECH) has been used in tokamak for ECH assisted start-up and plasma control by local heating and current drive. The detectors of resistive bolometer, near the antenna of ECH, are affected by electron cyclotron wave. The tomographic reconstruction, using the Phillips-Tikhonov regularization method, will be carried out for a major radial profile of the radiation emissivity of the circular cross-section plasma.
电阻测辐射热计已成功安装在韩国超导托卡马克先进研究装置（KSTAR）的L端口中平面。空间分辨率和时间分辨率分别为4.5厘米和~1千赫兹，这使我们能够通过辐射和中性粒子测量高温下磁约束等离子体的总辐射功率的径向分布。在所有放电过程中都测量了辐射功率。即使在低等离子体电流下，测辐射热计信号也是可检测的。电子回旋共振加热（ECH）已用于托卡马克，通过局部加热和电流驱动来辅助启动和控制等离子体。靠近ECH天线的电阻测辐射热计探测器会受到电子回旋波的影响。将使用菲利普斯 - 蒂霍诺夫正则化方法对圆形截面等离子体辐射发射率的主要径向分布进行断层重建。
