Coating technology improvement of ceramic chamber and measurement of time characteristic of pulsed magnetic field

Improvement status of HLS ceramic chambers was presented. A new method of inner surface coating of ceramic chambers with Mo-metallization was developed. The rise time characteristic of the pulsed magnetic field was greatly improved. Injection rate of the storage ring increased after installation of the new chamber. A two-coil method of measuring magnetic field was established. The resolution of rise time reaches nano-second range and the waveforms of measurement were presented．