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:
Sep. 28, 2021
Filed:
Jan. 30, 2018
Hitachi, Ltd., Tokyo, JP;
Shuichi Hatakeyama, Tokyo, JP;
Takahiro Tadokoro, Tokyo, JP;
Yuichiro Ueno, Tokyo, JP;
Yasushi Nagumo, Tokyo, JP;
Katsunori Ueno, Tokyo, JP;
Kouichi Okada, Tokyo, JP;
HITACHI, LTD., Tokyo, JP;
Abstract
The present invention includes: a radiation detecting unit including a fluorescent body expressed by the formula ATaO: B, C (in the formula, A is selected from at least one kind of element from among rare-earth elements involving 4f-4f transitions, B is selected from at least one kind of element, different from A, from among rare-earth elements involving 4f-4f transitions, and C is selected from at least one kind of element from among rare-earth elements involving 5d-4f transitions); an optical fiber that transmits photons generated by the fluorescent body; a light detector that converts the photons transmitted via the optical fiberone by one into electrical pulse signals; a counter that counts the number of electrical pulse signals converted by the light detector; an analysis and display devicethat obtains a radiation dose rate on the basis of the number of electrical pulse signals counted by the counter.