Spin-polarized particle beam analyzer, has superconducting guides with critical transition temperature higher than irradiation low temperature, critical field strength above stray field strength

摘要

The analyzer has a cryomagnet in a superconducting with guides about inlet and channels to produce guide fields for maintaining the spin direction of the particles under the influence of stray fields. The guides are of superconducting material with a critical transition temperature higher than the low temperature during irradiation and a critical magnetic field strength at this temperature above the field strengths of any stray fields. The analyzer has a cryomagnet in a superconducting cylinder (110) that is transparent to the particles in a magnetic null field chamber with guides about an inlet channel for the particle beam and an outlet channel to produce guide fields for maintaining the spin direction of the particles under the influence of stray fields. The guides (200) are superconducting hollow bodies (210) connected without gaps to the superconducting cylinder. The guides are of superconducting material with a critical transition temperature higher than the low temperature during irradiation of the material in the superconducting cylinder and a critical magnetic field strength at this temperature above the field strengths of any stray fields.