@article{8824, author = {M. Yoshikawa and H. Tanaka and Y. Hayashi and S. Kajita and H.J. van der Meiden and J.W. M. Vernimmen and T. W. Morgan and J. Kohagura and Y. Shima and S. Togo and N. Ezumi and Y. Nakashima and M. Sakamoto}, title = {Effects from the Target Plate Geometry on Fluctuations of Helium Plasma in the Linear Divertor Simulator Magnum-PSI}, abstract = {With the help of the linear divertor simulation device Magnum-PSI, a fluctuation investigation of the impact of the target plate geometry was conducted. We simultaneously quantify coherent low-frequency fluctuations with a newly built 70-GHz microwave reflectometry system, a reciprocating probe, a light emission detector system, and a fast-framing camera system. The strong low-frequency fluctuations were observed at both the electron density and the plasma radiations by moving the target plate along the magnetic field line. Furthermore, a strong peak in fluctuation intensity and the influence of the target plate tilt angle on the fluctuation intensity were noted.}, year = {2022}, journal = {Plasma and Fusion Research}, volume = {17}, pages = {1402100}, month = {10/2022}, doi = {10.1585/pfr.17.1402100}, language = {eng}, }