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Fusion Science and Technology
Latest News
College students help develop waste-measuring device at Hanford
A partnership between Washington River Protection Solutions (WRPS) and Washington State University has resulted in the development of a device to measure radioactive and chemical tank waste at the Hanford Site. WRPS is the contractor at Hanford for the Department of Energy’s Office of Environmental Management.
Tomohiro Morisaki, Akio Komori, Shoichi Okamura, Hiroshi Yamada, Shigeru Morita, Keisuke Matsuoka, Kiyohiko Nishimura, Harukazu Iguchi, Osamu Motojima, Yoshinobu Kawai
Fusion Science and Technology | Volume 27 | Number 3 | April 1995 | Pages 235-238
Helical Systems | doi.org/10.13182/FST95-A11947077
Articles are hosted by Taylor and Francis Online.
The temporal behavior of electron density profiles of edge plasmas in the Compact Helical System (CHS) during high beta discharges was measured with a thermal neutral lithium beam probe. A large outward shift of the plasma edge boundary was observed with an increase in the beta value. The position of the plasma edge boundary measured experimentally was compared with that of the last closed flux surface (LCFS) calculated by the VMEC code, and qualitative agreement was found between experimental and theoretical results. The experiment on the dynamic poloidal field control during the discharge was also performed successfully to fix the position of the edge plasma boundary when the plasma beta was raised.