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.

Date of Patent:
May. 23, 1989

Filed:

Jun. 22, 1987
Applicant:
Inventors:

Johan F Prins, Johannesburg, ZA;

Tom L Nam, Bez Valley, ZA;

Rex J Keddy, Rivonia, ZA;

Assignee:

Other;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01T / ;
U.S. Cl.
CPC ...
25037001 ; 437-3 ;
Abstract

The invention provides a method of preparing a detector which is sensitive to ionizing radiation or atomic emissions. The method includes the steps of forming at least two discrete conductive regions on a counting diamond by ion implantation, at a temperature below 500.degree. C. Subsequently, contacts are applied to the conductive regions to allow charged carriers liberated by the radiation to be detected by an electronic circuit. The invention extends to a detector prepared according to the method. An example of a detector according to the invention comprised a synthetic diamond having a paramagnetic nitrogen impurity concentration of less than 150 parts per million. Two conductive regions were formed on the diamond by bombardment with carbon ions, and contacts were formed on the conductive regions by the applications of silver-loaded epoxy paint.


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