PULSE MAGNETIC FIELD MEASUREMENT FOR THE SIDE-PLATED CERAMIC CHAMBER

A superconducting wavelength shifter (SWLS) will be installed at the SRRC (Synchrotron Radiation Research Center) storage ring in May 2002 for x-ray diffraction experiments. Since this SWLS is located at the injection straight section, part of the emitted synchrotron light will shine on the inner surface of the kicker ceramic chamber and heat accumulation occurs. In order to solve this problem, a pair of water-cooled copper plate was designed to place inside of the ceramic chamber. This arrangement will reduce the physical aperture within the pulsed kicker magnet, from 78 mm to 50 mm horizontally. It is of great concern that this shall not degrade the quality of the pulsed magnetic field. A test bench was setup for the purpose of pulsed magnetic field measurement. This test bench includes a set of full-scale kicker magnet, ceramic chamber with cooling copper plates, pulsed power supply, and pulse magnetic probe. This report summarized the measurement results and electrical considerations of related engineering design