The longitudinal and transverse coupling impedances produced by the long
slots in the Low Energy Ring of KEK B-factory are calculated. The power
dissipated inside the vacuum chamber due to the fields scattered by the slots
is evaluated using results for the real part of the coupling impedance.
Estimates are made for the power flow through the slots to the pumping chamber.Comment: 14 pages, uuencoded gzipped PS-file (141K