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During the repair

Energy was adjusted until beam was found

o

This was done for all energies

Since running at maximum deflection current

o

=> ~36 MeV for all electron beams

Instead of finding the defect (short-circuited) transistor and restoring the

correct deflection current in the bending magnet

To do this adjustment

o

energy selection had to be switched to “manual mode”

By doing so, the energy selection from the control panel was partly disabled

19

2016-10-05

T Knöös