| 摘要 |
PURPOSE:To make uniform the distribution of magnetic flux in coils as a whole by making the width of a cooling channel formed between conductor coils for distributing a cooling medium changing in proportion to the calorific value at the time of the fixed conduction transfer of the conductor coil in that place at each portion of the coil constructions. CONSTITUTION:For the conductor coil 31 of a superconductive magnet, a coil having the same transverse section as a whole is used while the width of the cooling channel 32 is made wider according as the calorific value produced at the time of the fixed conduction transfer on its internal diameter side increases so as to increase the heat absorption capacity by the cooling medium, and reduce the difference in temperature rise at the time of the fixed conduction transfer in each conductor 31 of the coils. This makes the utilization of the coils for large-sized magnets effective because the average current density of coils on the side of high magnetic field is reduced, and because the maximum experienced magnetic field of the conductor 1 is lowered while making uniform the distribution of magnetic flux in coils. |
