Electron Beam Diagnostics
Energy measurement at exit of rf photoinjector
Electron energy at the exit of rf photoinjector is measured by the following
two steps. First, an electron pulse is kicked by a trim coil inside the
photoinjector and the electron position at the exit of the photoinjector
is observed. Next, the measured position is put into a MAD input file
and the electron energy is fitted by MAD. Click
here for an example of MAD input data, in which the beam is kicked
by a combination of the trim coil and a solenoid coil. Click
here for geometry of the beam profile monitor (LPOP-UP1). Since the
two coils are partially overlapped, the coils are independently divided
into tens of slices and each slice is placed reciprocally.
Last Modified:
December 3, 2007
Please forward all questions about this site to:
Christina Swinson
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