146 Beam-based Correction and Optimization for Accelerators
0.95
1
1.05
g
x
0
20
40
60
80
100
120
140
160
180
BPM index
0.95
1
1.05
g
y
ICA
LOCO
Figure 5.14 The fitted horizontal (top) and vertical (bottom) BPM gains for NSLSII by ICA (“ICA”) or by fitting the orbit response matrix (“LOCO”).
0
50
100
150
quadrupole variable
-0.02
-0.01
0
0.01
0.02
0.03
K (m
-2
)
ICA
LOCO
Figure 5.15 The fitted quadrupole gradient errors, ∆K, for NSLS-II by ICA or by
fitting the orbit response matrix (“LOCO”).