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:
Jun. 09, 1987
Filed:
Nov. 08, 1985
John F Moore, Lake Bluff, IL (US);
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A particle detector crystal comprising a diamond-shaped crystal scintillation material having 60 degree and 120 degree apexes and having at least one slot extending from a lower surface of that crystal into the interior of that crystal in a direction substantially parallel to a minor diagonal axis of the crystal a distance sufficient to reduce internal light bounce within that crystal. A plurality of such particle detector crystals are employed in groups of six each arranged with the 60 degree apexes of the crystals in each group positioned contiguous to each other to form a six-pointed star and further employing a plurality of light detectors arranged in a hexagonal array with each detector located above a respective situs of the contiguous 60 degree apexes.