FOUR-COIL SUPERCONDUCTING HELICAL SOLENOID MODEL FOR MUON BEAM COOLING

摘要

Novel configurations of superconducting magnets for helical muon beam cooling channels and demonstration experiments are being designed at Fermilab. The magnet system for helical cooling channels has to generate longitudinal solenoidal and transverse helical dipole and helical quadrupole fields. This paper discusses the Helical Solenoid model design and manufacturing of the 4-coil model with 0.6 m diameter aimed at verifying the design concept, fabrication technology, and the magnet system performance. Details of magnetic and mechanical designs, including the 3D analysis by TOSCA and ANSYS will be presented. The model quench performance and the test setup in the FNAL Vertical Magnet Test Facility cryostat will be discussed.