K-edge filter and X-ray apparatus employing the same
First Claim
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1. A method of measuring X-rays using an X-ray apparatus including an X-ray detector,an X-ray generator and a K-edge filter disposed between the X-ray generator and an object to be measured;
- comprising choosing a K-edge filter such that between a first maximum value of energy corresponding to output pulses of X-rays usable as data and a second maximum value of energy corresponding to output pulses of X-rays obtained at the time when K-shell characteristic X-rays generated in the X-ray detector have escaped from the X-ray detector, X-rays generated from the X-ray generator and having a continuous spectrum are subjected to energy separation by the K-edge filter and then measured such that X-rays which have passed through the object and have a plurality of energies are measured.
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Abstract
A K-edge filter whose main portion functions as a filter member and is made of a material containing at least two kinds of elements, and an X-ray apparatus is fabricated so as to include such a K-edge filter.
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Citations
2 Claims
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1. A method of measuring X-rays using an X-ray apparatus including an X-ray detector,an X-ray generator and a K-edge filter disposed between the X-ray generator and an object to be measured;
comprising choosing a K-edge filter such that between a first maximum value of energy corresponding to output pulses of X-rays usable as data and a second maximum value of energy corresponding to output pulses of X-rays obtained at the time when K-shell characteristic X-rays generated in the X-ray detector have escaped from the X-ray detector, X-rays generated from the X-ray generator and having a continuous spectrum are subjected to energy separation by the K-edge filter and then measured such that X-rays which have passed through the object and have a plurality of energies are measured.
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2. A method of measuring X-rays using an X-ray apparatus including an X-ray detector, an X-ray generator and a K-edge filter disposed between the X-ray generator and an object to be measured;
comprising choosing a K-edge filter such that between a first effective energy corresponding to output pulses of X-rays in a high energy region after energy separation and a second effective energy corresponding to output pulses of X-rays obtained at the time when K-shell characteristic X-rays generated in the X-ray detector when escaped from the X-ray detector, X-rays generated from the X-ray generator and having a continuous spectrum are subjected to energy separation by the K-edge filter and then measured such that X-rays which have passed through the object and have a plurality of energies are measured.
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Current AssigneeMatsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
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Original AssigneeMatsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
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InventorsTsutsui, Hiroshi, Baba, Sueki, Ohmori, Koichi, Ohtsuchi, Tetsuro
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Primary Examiner(s)Porta, David P.
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Assistant Examiner(s)WONG, DON KITSUN
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Application NumberUS08/191,702Time in Patent Office284 DaysField of Search378/156, 378/158, 378/157, 250/505.1, 250/482US Class Current378/156CPC Class CodesG21K 1/10 Scattering devices; Absorbi...H05G 1/26 Measuring, controlling or p...
