X-ray optical apparatus

Details X-ray optical apparatus X-ray optical apparatus

1990-12-24

1992-06-02

Howell, Janice A.

X-ray or gamma ray systems or devices

Accessory

Alignment

378 43, 378 45, 378 53, 378 70, 378 84, 250311, A61B 608, G21K 700

Patent

active

051194112

ABSTRACT:
An X-ray optical apparatus comprises an X-ray optical system which is capable of projecting an enlarged sample image by soft X-rays and a visible optical system to observe the sample with a visible radiation. To enable simultaneous observation using both optical systems, the systems utilize a common objective zone plate. The objective zone plate includes a base plate having an opening at the center thereof to pass the soft X-rays which have passed through the sample and also having a visible radiation passing section to the outside of the opening. A zone plate is supported centrally on the base plate for converging soft X-rays which have passed through the sample and forming the sample image at a predetermined position. An eyepiece is provided in a position displaced from the X-ray optical axis to enable visual observation of the sample with the light passed through the visible radiation transmitting section of the objective zone plate.

REFERENCES:
patent: 2843751 (1958-07-01), Botty et al.
patent: 2877353 (1959-03-01), Newberry
patent: 4317036 (1982-02-01), Wang
patent: 4870674 (1989-09-01), Schmahl et al.
patent: 4979203 (1990-12-01), Suckewer et al.

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