Effects of
q
-profiles of a weak magnetic shear on energetic ion excited
q
= 1 mode in tokamak plasmas
Li Ze-Yu
1
, Wang Xian-Qu
2, †,
, Wang Xiao-Gang
3
Profiles of
q
(
r
) =
q
min
+
q
c
(1 − (
r
/
r
m
)
α
)
2
with
q
c
= 0.2,
α
= 2,
q
min
= 1.01, and a changing
r
m
from 0.3 to 0.7.