The measurement of the fast potential change near the separartix directly at the L-H transition by a heavy-ion-beam probe was presented. The potential changes with two different time scales were observed at the L-H transition triggered by a sawtooth crash. The first change was a fast change just after a sawtooth crash and the other was a few 100 μs after a sawtooth crash. The time scale of the first change was in the range of 10 to 100 μs and the time scale of the second change was about 230 μs.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)