Measurement of horizontal size

1
Measurement of horizontal size
Ycm
Ycm
Xcm
Xcm
sx2sx0
nominal
The size of hit pattern at 2sx0 is smaller than
at nominal.
2
sy1 sy1.25 sy1.5 sy2 sy3 sy5
vertical size
horizontal size
sx1 sx1.25 sx1.5 sx2
Rcm
displacement
Dy0 Dy0.25 Dy0.5 Dy1 Dy1.5 Dy2
Rcm
Rmax has the information about horizontal beam
size
Rcm
3
Difference of bin
Fit with Gaussian
Rcm
Difference of bin
Rcm
Rmax
4
The errors of 3sy0 are large, because they could
not fit well.
sy3sy0
Rmax
ragged
sy1sy0 sy2sy0 sy3sy0 sy5sy0
sx/sx0
Other methods might have to be devised.