MT25 Conference 2017 - Timetable, Abstracts, Orals and Posters

Development of SECRAL II superconducting magnet

29 Aug 2017, 15:45

15m

Auditorium

Regular 15 minutes Oral Presentation A1 - Superconducting Accelerator Magnets Tue-Af-Or16

Speakers

Mr Tongjun Yang (Institute of Modern Physics, Chinese Academy of Sciences) Wei Wu (Institute of Modern Physics, Chinese Academy of Sciences)

Description

A superconducting magnet has been developed for SECRAL II ion source at IMP. The design of this magnet is based on SECRAL, with sextupole coils external to the axial solenoids to reduce Lorentz force between sextupole coil’s end and solenoids. The magnet consists of a set of sextupole coils and three solenoids to generate a confinement magnetic field. All the coils use a NbTi conductor and are bath-cooled in liquid helium. The challenges of the magnet are the sextupole coils’ winding and cold mass’s assembling. Thus, some modifications related to coil fabrication, cold mass assembling and cryostat have been adopted to improve the performance or simplify the process. The cold mass assembly was complete and tested in July 2014. Then the magnet was integrated into cryostat and finally trained to design current after several quenches. This paper will present the design, construction and test results of the magnet.

Presentation materials

Or16-04 Tue-Af-Or16-04_Yangtongjun.pdf