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,
r
m
= 0.5,
α
= 2, and a changing
q
min
from 0.80 to 1.20.