$T_f$

$T_r$

$T_a$

$T_d$

$T_c$

$T_{rL}$

$T_{rU}$

$T_{cc}$

Pure RCD

100,000

0.6

0.25R

1.5

20

R − 5

R + 5

1

Improved RCD

Square of the length of contour, which is different in searching circle in each chain

0.6

0.25R

1.5

20

R − 5

R + 5

1