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:
Jan. 20, 2015

Filed:

Oct. 12, 2012
Applicants:

Alex Kulik, Sugar Land, TX (US);

Alexander Joseph Esin, Sugar Land, TX (US);

Inventors:

Alex Kulik, Sugar Land, TX (US);

Alexander Joseph Esin, Sugar Land, TX (US);

Assignee:

Thermo Fisher Scientific Inc., Sugar Land, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 40/14 (2006.01); H03K 21/02 (2006.01);
U.S. Cl.
CPC ...
H03K 21/02 (2013.01);
Abstract

A method and apparatus in accordance with the present disclosure relate to monitoring gain of a proportional counter. The method includes generating a pulse height spectrum of the proportional counter, defining a first window and a second window within the pulse height spectrum, counting electrical pulses outputted by the proportional counter within the first window of the pulse height spectrum, thereby defining a first window count, counting electrical pulses outputted by the proportional counter within the second window of the pulse height spectrum, thereby defining a second window count, and determining a difference between the first window count and the second window count.


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