Isotope mass scaling of AE damping rates in the JET tokamak plasmas

✍ Scribed by A Fasoli; A Jaun; D Testa

• Publisher: Elsevier Science
• Year: 2000
• Tongue: English
• Weight: 255 KB
• Volume: 265
• Category: Article
• ISSN: 0375-9601
• DOI: 10.1016/s0375-9601(99)00895-6

✦ Synopsis

The damping of radially extended Alfven eigenmodes in tokamak plasmas is investigated in JET discharges with different ion mass. The comparison of damping measurements with predictions of a gyro-kinetic model indicates that mode conversion into kinetic Alfven waves is the dominant damping mechanism for Alfven eigenmodes in the plasma core.