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:
Oct. 09, 1990
Filed:
Dec. 28, 1988
Satoru Kawasaki, Hitachi, JP;
Masahiro Kondo, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A method of and apparatus for measuring radioactivity, which determines energy spectra of radiation rays which are detected by a radiation sensor through a collimator arranged in front of a radiation detector, calculates a spectrum index on the basis of an intensity of scattered rays and an intensity of unscattered rays among the radiation rays determined by distribution of the energy spectra, calculates a density of the object to be measured or a value relating to the density of the density of the object to be measured on the basis of the spectrum index, and meters the radioactivity of the object to be measured on the basis of the value relating to the density and the intensity of the unscattered rays by one measuring step for every cross-section of the object to be measured.