The present invention relates to the technical field of
neutron reflection, particularly to a
neutron reflection
spectrometer optical path structure capable of performing rapid switching between a polarization mode and a non-polarization mode. The
optical path structure mainly comprises an incident arm, a sample table and a reflection arm, wherein the incident arm comprises a first slit, a second slit, a third slit, a focusing conduction
pipe, a
polarizer, a first
translation table, a second
translation table, a first platform, a second platform and an incident arm base, the sample table comprises a vertical
electromagnet, a sample, a
cryostat, a
third platform, a sample attitude adjustment mechanism and a sample table base, and the reflection arm comprises a fourth slit, a lifting table, a polarization analyzer, a
detector, a third
translation table, a reflection arm base, a fourth platform and a reflection arm rotation drive mechanism. According to the present invention, the rapid switching between the polarization mode and the non-polarization mode can be achieved by simply controlling and adjusting the movements of the three translation tables and the lifting table, such that the structure is easily achieved, and the precision of the experiment is high.