TY - JOUR
T1 - Validation of the digital correlation ECE measurement technique using low-frequency fluctuation in LHD
AU - Lhd Experiment Group
AU - Tsuchiya, Hayato
AU - Inagaki, Shigeru
AU - Tokuzawa, Tokihiko
AU - Tamura, Naoki
AU - Nagayama, Yoshio
PY - 2016/1/1
Y1 - 2016/1/1
N2 - We have proposed and developed a digital correlation ECE (DCECE) measurement method using a highspeed sampling digitizer. This is the first report of the validation of the DCECE using actual data of plasma. The experiment was conducted in the 18th cycle experiments in the large helical device (2014 fiscal year) and a several kHz electron temperature fluctuation was detected in the high ion temperature plasma. The results were compared to the conventional radiometer type ECE measurement. Moreover, it was found that the correlation profile depends on the analytical parameters of the IF conversion.
AB - We have proposed and developed a digital correlation ECE (DCECE) measurement method using a highspeed sampling digitizer. This is the first report of the validation of the DCECE using actual data of plasma. The experiment was conducted in the 18th cycle experiments in the large helical device (2014 fiscal year) and a several kHz electron temperature fluctuation was detected in the high ion temperature plasma. The results were compared to the conventional radiometer type ECE measurement. Moreover, it was found that the correlation profile depends on the analytical parameters of the IF conversion.
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U2 - 10.1585/pfr.11.2402072
DO - 10.1585/pfr.11.2402072
M3 - Article
SN - 1880-6821
VL - 11
JO - Plasma and Fusion Research
JF - Plasma and Fusion Research
IS - 1
M1 - 2402072
ER -