Abstract
A new type of end-loss energy component analyzer (ELECA) has been developed in order to investigate ion confinement of the tandem mirror. The essential advantage of the use of the ELECA is the ability to determine distribution functions of end-loss ions every moment during plugging in one shot. The ELECA was carefully designed, taking account of the influence of the fringing electrostatic field and weak leakage magnetic field on ion trajectories in the analyzer. The new diagnostics has been applied to the tandem mirror GAMMA 10. Consequently, it was verified from the viewpoint of ion distribution in velocity space that plug potential was created upon turning on electron cyclotron resonance heating (ECRH) even without sloshing ions caused by neutral beam injection (NBI), and at the same time, the structure with double loss boundaries changed to a simple structure.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
