Optical Transition Radiation Monitor at ATF

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Optical Transition Radiation Monitor at ATF
Schematic and photograph of OTR Monitor in the
ATF extraction line
Online digitizing program with 5 mm beam profile
Comparison of OTR beam sizes as compared with
those measured by nearby wire scanners. These
sizes have not been corrected for expected
differences due to local optics.
Image of a standard Resolution Target in OTR
monitor. This allows best achievable resolution
to be measured for a given camera and optics
setup. In this case, 1.25 mm.
Quad emittance scan with OTR and comparison with
WS measurements
A faint shadow is generated with the 10 um
horizontal wire (for vertical measurement) in the
beam. This is used to measure the tilt of the
beam.