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:
Dec. 19, 1989
Filed:
Oct. 26, 1988
Applicant:
Inventor:
Jacobus H Grobbelaar, Alberton, Tv1., ZA;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01J / ; G01T / ; G01T / ; G01T / ;
U.S. Cl.
CPC ...
2503361 ; 25037001 ; 25037007 ;
Abstract
The invention provides apparatus for measuring nuclear radiation. The apparatus includes a probe which comprises a synthetic diamond and a FET pre-amplifier. A DC bias voltage is applied across the diamond and the pre-amplifier amplifies pulse or conduction signals from the diamond due to incident radiation. The pre-amplifier provides a first output having only an AC component, and a second output having both an AC and a DC component. A DC feedback stage applies a feedback signal to the input of the pre-amplifier to improve its dynamic range.