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ITER plans to conduct the D-T fusion experiment in 2039. Effects of the resistive internal kink mode (IK) and fishbone instabilities on the redistribution and the transport coefficients of alpha particles in ITER 15 MA baseline scenario are numerically investigated using the particle tracing code PTC. The results of scanning the perturbation amplitude shows that the IK can result in alphas transporting from regions of $\rho$ < 0.1 to 0.1 < $\rho$ < 0.3, where $\rho$ labels the normalized poloidal flux. Radial redistribution of alphas is greater with increasing the perturbation amplitude. The maximum relative change of the alpha number approaches 60% when the perturbation amplitude rises to 850 G. Simulation results obtained by scanning the fishbone frequency indicate that alphas with different energies are sensitive to the assumed fishbone frequency. Redistribution of alphas with energy lower than 100 keV is the strongest at the fishbone frequency of 5 kHz, while perturbations at frequency of 10 kHz lead to the strongest redistribution of alphas with energies between 100 and 500 keV. Redistributions of alphas by both the IK and fishbone instabilities are all localized in the plasma core region of $\rho$ < 0.3, without causing any particle losses.
For the transport coefficients calculation, results considering the equilibrium field show that, the convection coefficient K distribution is anti-symmetric along pitch, and K value is on the order of 10^0. The diffusion coefficient D is basically zero, indicating no diffusion transport in the absence of perturbations. When perturbation is considered, the K value increases to the order of 10^1. The D value is no longer zero, but the Péclet number Pe $\gg$ 1 in all cases, meaning that the convection of alphas is much greater than the diffusion. Results of scanning perturbation amplitudes and frequencies show that larger amplitude leads to larger value of K (from 10^0 to 10^1), indicating a stronger alphas convective transport. The different perturbation amplitudes does not affect the distribution structure of K, while the change in perturbation frequency has a significant impact on it.