Fig. 1. 3D structure diagram of the FILD probe head in EAST^[14]

Fig. 2. Strike-map of FILD scintillator

Fig. 3. Temporal evolution of main parameters for discharge #85624

Fig. 4. Velocity-space strike-map of fast-ion loss signal under ion cyclotron resonance heating (ICRH) at 8.04 s for discharge #85624

Fig. 5. Velocity-space distributions of fast-ion loss under ICRH (a) Gyroradius vs. pitch angle, (b) Energy vs. pitch angle

Fig. 6. Diagram of probe self-obstructing effect

Fig. 7. Velocity-space strike-map of probe blocked region in the background of blocked particle for discharge #85624

Fig. 8. Velocity-space strike-map of probe blocked region in the background of passable particle region for discharge #85624

Fig. 9. Velocity-space strike-map of fast-ion loss signal under ICRH for discharge #85624

Fig. 10. Velocity-space strike-map of fast-ion loss signal under ICRH in the background of passable particle region for discharge #85624