Spin detector arrangement for measuring the vector component of a spin vector predominating in a particle beam

摘要

The invention relates to a spin detector arrangement for detecting vector components of a predominating spin vector in a particle beam (T) having a predominating spin orientation of the particles. The spin detector arrangement comprises: a spin rotator (1) having a switchable coil (5), wherein the switchable coil (5) comprises an axial direction and is aligned such that the particle beam (T) passes through the switchable coil (5) along the axial direction; a deflection device (7) connected downstream of the spin rotator (1) and deflecting the path of the particle beam (T) electrostatically by a deflection angle; a spin detector (9) connected downstream of the deflection device (7), allowing the deflection of the vector component of the spin vector predominating in the particle beam (T) perpendicular to the direction of motion of the particle beam (T); and a switching unit (15) connected to the switchable coil (5), allowing switching of the excitation state of the coil (5).

主权项

1. Spin detector arrangement for detecting vector components of a predominant spin vector in a particle beam having a predominant spin orientation of the particles, with the spin detector arrangement comprising:
a spin rotator having a switchable coil, with the switchable coil having an axial direction and being aligned such that the particle beam passes through the switchable coil along the axial direction; a deflection device connected downstream of the spin rotator, which deflects the path of the particle beam electrostatically by a deflection angle; a spin detector connected downstream of the deflection device, which allows the detection of the perpendicular vector components of the predominant spin vector in the particle beam relative to the direction of motion of the particle beam; and a switching unit connected to the switchable coil, which allows the switching of the excitation state of the coil, wherein the spin detector is configured to successively measure two respective vector components of the predominating spin vector and the switching unit is configured to switch the coil of the spin rotator into a first excitation state in the one measurement, and into a second excitation state in the other measurement.