Magnetic Probe Construction using Thick-film Technology

Takahashi, H. ; Sakakibara, S. ; Kubota, Y. ; and Yamada, H.

Princeton University. Plasma Physics Laboratory.

关键词: Magnetic Fields;    70 Plasma Physics And Fusion Technology;    Implementation;    Thermonuclear Devices;    Design;   

DOI  :  10.2172/784556
RP-ID  :  PPPL-3570
RP-ID  :  AC02-76CH03073
RP-ID  :  784556

美国|英语

来源: UNT Digital Library

【 摘 要 】

Thick-film technology has been successfully adapted for the design and fabrication of magnetic probes of a new type suitable for use in the simultaneous ultra-high vacuum and high-temperature environment of a nuclear fusion device. The maximum usable temperature is expected to be around 900 degrees C. This new probe has a specific sensitivity (coupling area per unit volume) an order of magnitude higher than a conventional coil. The new probe in one implementation is capable of simultaneously measuring magnetic field in three orthogonal directions about a single spatial point and in two frequency ranges. Low-frequency coils have a measured coupling area of 296-323 cm squared and a frequency response of about 300 kHz. High-frequency coils have a design coupling area of 12-15 cm squared.