The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 21, 1989
Filed:
May. 04, 1987
Toshihiro Rifu, Tochigi, JP;
Kyojiro Nambu, Tochigi, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
An X-ray computed tomography apparatus is disclosed which includes an X-ray source for irradiating an X-ray, a main detector section for detecting the X-ray passed through a subject and a scattering ray detector for detecting its scattered component. An X-ray shield member is detachably mounted between the X-ray source and the main detector section to shield the main X-ray. The apparatus thus manufactured evaluates a ratio between an amount of scattered component incident on the main detector section when the main X-ray is shielded from the X-ray shield member and an amount of scattered component which is detected by the scattering ray detector. With this ratio placed as K, an amount of X-ray, m, to be measured is found from