| 摘要 |
PROBLEM TO BE SOLVED: To change an aperture angle of a radiation beam for analysis during measuring in a radiation analyzing device such as an X-ray spectroscope by changing the length of a collimating element of a collimator. SOLUTION: In this device, the length of a collimating element exposed to a radiation beam 45 can be changed by displacing or rotating a collimator in the radiation beam 45. In the case of a collimator (a Soller collimator) comprising quadrangular plates 46, the collimator can be rotated around a shaft 50 perpendicular to the plates 46. In the case of a collimator comprising X-ray fibers, the fibers are disposed such that lengths of the fibers vary, and the collimator is displaced in the radiation beam 45 sideways to the longitudinal direction of the fibers. |
