X-RAY DIAGNOSTIC SYSTEM
PROBLEM TO BE SOLVED: To enable keeping the amount of incident X ray into an X-ray inspector constant by controlling a movable X-ray aperture operation even if an effective X-ray introduction area has been reduced. SOLUTION: If the effective X-ray introduction area ratio 20 that changes by operating...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | PROBLEM TO BE SOLVED: To enable keeping the amount of incident X ray into an X-ray inspector constant by controlling a movable X-ray aperture operation even if an effective X-ray introduction area has been reduced. SOLUTION: If the effective X-ray introduction area ratio 20 that changes by operating an X-ray movable aperture 2 is assumed to be Y, the X-ray output from an X-ray tube bulb 1 is controlled in accordance with an X-ray output signal transmitted by an X-ray photomultiplier sensor 4 and multiplied by 1/Y. COPYRIGHT: (C)2009,JPO&INPIT |
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