Speaker
Description
Over 20 years more than 25 superconducting multipole insertion devices for generation of synchrotron radiation (wigglers and undulators) have been created at BINP for several synchrotron radiation centers. It was developed a cryogenic system based on cryocoolers which allows autonomous operation of superconducting insertion devices on the storage ring without maintenance and consumption of liquid helium for several years. The use of a cryogenic indirect cooling system allows remove vacuum chamber of helium vessel and thereby increase maximum magnetic field value due to decreasing of magnetic pole gap. For effectively cooling of indirect cooling magnet, which located in a vacuum and has no direct thermal contact with cryogenic liquids, it were used siphon-type heat pipes filled both nitrogen and helium. The design features and recent advances in the development of a magnetic and cryogenic system with liquid and indirect cooling are discussed.
