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:
May. 03, 1994
Filed:
May. 18, 1992
Applicant:
Inventor:
Melvin P Siedband, Madison, WI (US);
Assignee:
Radiation Measurements, Inc., Middleton, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01T / ; H01J / ;
U.S. Cl.
CPC ...
2503851 ;
Abstract
A radiation detector has a number of ionization chambers. Each ionization chamber is connected to an accumulating capacitor which in turn is sequentially read by a multiplexed charge-counter. The charge-counter eliminates the effect of variations of the capacitance values of the accumulating capacitors associated with each ionization chamber cell and provides a consistency of measurement among the ionization chamber cells unlike a design employing multiple measurement circuits dedicated to each ionization chamber cell.