Action-kick sensitivity to HGQ field errors at injection (R0 = 22 mm):

Multipole 	|\Delta J/J\right| (10^{-3}) 
b_3/a_3		0.12
b_4/a_4		0.085
b_5/a_5		0.059
b_6/a_6		0.042
b_7/a_7		0.029
b_8/a_8		0.021
b_9/a_9		0.015
b_10/a_10	0.010

Note:

1. 1 unit (@2.2 cm) multipole error on one (Q2A$+$Q2B) quad set

2. nominal injection; 11 sigma amplitude with zero crossing angle