| 摘要 |
A mirror for use as a grazing incidence collimator comprises a section of a glass cylinder (10) having its internal surface coated with gold for optimum reflection of 1.0nm x-rays at a grazing incidence angle of 1.5 DEG . The section of cylinder (10) is bent to form a saddle toroid by means of equal but opposite couples applied at either end of the cylinder by fixed supports (20) and adjustable supports (30). In an alternative embodiment, a collimator comprises an array of microtoroids (140).
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