PREPARATION OF COSICAL PINHOLES SUITABLE FOR X-RAY PROJECTION MICROSCOPIC TECHNIQUES.

S K JAIN, M A VISWAMITRA, H SHARAT CHANDRA

Abstract


Attempts were made to fabricate a conical pinhole for studying biological specimens using the techniques of X-ray projection microscopy. Mechanical, photolithographic, electroforming, and jet electropolishing methods were employed for this purpose. It was found that whereas the electroforming methods yield a better conical shape, better polishing is obtained with the last method.

Keywords


Conical pinhole, X-ray projection method.

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