title: Development of fast cooling pulsed magnets at the Wuhan National High Magnetic Field Center.
abstract: Pulsed magnets with fast cooling channels have been developed at the Wuhan National High Magnetic Field Center. Between the inner and outer sections of a coil wound with a continuous length of CuNb wire, G10 rods with cross section 4 mm × 5 mm were inserted as spacers around the entire circumference, parallel to the coil axis. The free space between adjacent rods is 6 mm. The liquid nitrogen flows freely in the channels between these rods, and in the direction perpendicular to the rods through grooves provided in the rods. For a typical 60 T pulsed magnetic field with pulse duration of 40 ms, the cooling time between subsequent pulses is reduced from 160 min to 35 min. Subsequently, the same technology was applied to a 50 T magnet with 300 ms pulse duration. The cooling time of this magnet was reduced from 480 min to 65 min.
authors.affiliation: Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan, China.
authors.forename: Tao
authors.initials: T
authors.lastname: Peng
authors.affiliation: Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan, China.
authors.forename: Quqin
authors.initials: Q
authors.lastname: Sun
authors.affiliation: Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan, China.
authors.forename: Jianlong
authors.initials: J
authors.lastname: Zhao
authors.affiliation: Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan, China.
authors.forename: Fan
authors.initials: F
authors.lastname: Jiang
authors.affiliation: Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan, China.
authors.forename: Liang
authors.initials: L
authors.lastname: Li
authors.affiliation: Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan, China.
authors.forename: Qiang
authors.initials: Q
authors.lastname: Xu
authors.affiliation: Department of Physics, Katholieke Universiteit Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium.
authors.forename: Fritz
authors.initials: F
authors.lastname: Herlach