| 摘要 |
PROBLEM TO BE SOLVED: To provide a resonator system aligning apparatus capable of efficiently aligning a free electron laser generator resonator system and supplying a probe laser for guiding so as to be coincident with a laser beam axis for a free electron laser out of a visible region. SOLUTION: The resonator system aligning apparatus comprises a transit 10 provided out of the resonator system with a pair of resonator mirrors 4, 6 respectively housed in resonator chambers 2, 3 via an inserting light source 1 as an object, and view ports 21, 22, 31 provided in the chambers 2, 3 to see through the mirrors 4, 5 and a reflecting mirror 5 for the probe laser from the transit. Thus, the mirrors or the like can be directly observed without depending upon marks attached to the surfaces of the chambers 2, 3 to regulate a positional attitude.
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