Proportional detector
OwnerJohannes Baecklundinventor
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Abstract
There is provided a proportional detector which is intended for use together with an X-ray tube in fluorescence measuring apparatus. The detector comprises a circular-cylindrical body which is divided into a plurality of identical sectors forming the chamber (3) of said detector and which has a circular-cylindrical recess (1) for accommodating an X-ray tube (2). The inner surfaces of the chambers (3) comprise a metal or a metal coating (4) and are electrically conductive. Extending axially within the chambers (3) is a thin wire (5) which forms the positive electrode of the detector. The inner surfaces of the chambers form the negative electrode of the detector. The detector is intended to be placed on the sample to be examined.
Claims7
A proportional detector for fluorescence measuring of an object comprising chamber means defined by at least one chamber and having a central electrode in the form of a thin wire which forms the positive electrode of the detector, the inner surfaces of said chamber means forming the negative electrode of said detector, the chamber means being formed symmetrically about a central recess, which recess is constructed to accomodate an x-ray tube with the axis of said recess coinciding with the axis of the x-ray tube in a manner such that the chamber means surrounds the x-ray tube.
Dependencies are inferred from the claim text.