Peterson Byron J, Oh Seungtae, Seo Dongcheol, Jang Juhyeok, Park Jae Sun, Mukai Kiyofumi, Choe Wonho
National Institute for Fusion Science, Toki, Japan.
National Fusion Research Institute, Daejeon, South Korea.
Rev Sci Instrum. 2018 Oct;89(10):10E115. doi: 10.1063/1.5038935.
An InfraRed imaging Video Bolometer (IRVB) was installed on KSTAR in 2012 having a ∼2 m × 7 cm × 9 cm Pt foil blackened with graphite and a 5 mm × 5 mm aperture located 7.65 cm from the foil with 16 × 12 channels and a time resolution of 10 ms. The IR camera was an Indigo Phoenix (InSb, 320 × 256 pixels, 435 fps, <25 mK). In 2017, the IRVB was upgraded by replacing the IR camera with a FLIR SC7600 (InSb, 640 × 512 pixels, 105 fps, <25 mK). The aperture area was reduced by approximately half to 3.5 mm × 3.5 mm, and the number of channels was quadrupled to 32 × 24. A synthetic image derived using the projection matrix for the upgraded IRVB from a Scrape Off Layer Plasma Simulator (SOLPS) model with 146 kW of total radiated power had a maximum signal of 7.6 W/m and a signal to noise ratio (SNR) of 11. Experimental data for a plasma with parameters similar to the SOLPS model (total radiated power of 158 kW) had a maximum signal of 12.6 W/m and noise equivalent power density (SNR) of 0.9 W/m (14).
一台红外成像视频测辐射热计（IRVB）于2012年安装在韩国超导托卡马克先进研究装置（KSTAR）上，它有一块约2米×7厘米×9厘米的铂箔，表面用石墨涂黑，还有一个5毫米×5毫米的孔径，位于距箔片7.65厘米处，有16×12个通道，时间分辨率为10毫秒。红外摄像机是Indigo Phoenix（锑化铟，320×256像素，435帧/秒，<25毫开尔文）。2017年，IRVB进行了升级，将红外摄像机换成了FLIR SC7600（锑化铟，640×512像素，105帧/秒，<25毫开尔文）。孔径面积减少了约一半，变为3.5毫米×3.5毫米，通道数量增加到四倍，变为32×24。从具有146千瓦总辐射功率的刮削层等离子体模拟器（SOLPS）模型为升级后的IRVB使用投影矩阵得出的合成图像，最大信号为7.6瓦/平方米，信噪比（SNR）为11。与SOLPS模型参数相似（总辐射功率为158千瓦）的等离子体的实验数据，最大信号为12.6瓦/平方米，噪声等效功率密度（SNR）为0.9瓦/平方米（14）。
