New development of ceramics chamber with integrated pulsed magnet for pulsed multipole injection at KEK-PF

The KEK-PF is now dedicated to the development of pulsed multipole injection scheme. An experiment of pulsed sextupole injection has been performed successfully. Although this method could inject a beam into the storage ring without large perturbation, the stored beam is still disturbed due to eddy current effects of iron core magnet and coating inside of the chamber. To suppress the perturbation completely, Ceramics Chamber with integrated Pulsed Magnet(CCiPM) of an air-core magnet, which is developed specially as fast pulsed kicker, is being expanded to multipole pulsed magnet, which could generate an Octupole-like magnetic field. To examine the performance of Octupole-type CCiPM, some preliminary experiments are conducted such as durability test, current excitation test and magnetic field measurement to evaluate the mechanical performance and magnetic field quality. The design and experimental results will be reviewed. (author)