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:
Aug. 29, 1978
Filed:
Mar. 23, 1977
Berthold K Horn, Concord, MA (US);
Butler-Newton, Inc., Newton, MA (US);
Abstract
A small but very efficient X-ray detector operating in a current integrating mode for use in high speed tomography apparatus comprises a scintillator that is entirely coated with a highly reflective matte material except for a relatively small-area window. A P.I.N photo-diode is juxtaposed with the scintillator opposite the window and the two are secured together at an optical interface comprising a transparent adherent material preferably having an index of refraction between the indices of the scintillator and the photo-diode. The ratio of the active surface area of the photo-diode to the area of the scintillator coated with reflective material is appreciably less than unity.