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:
Oct. 08, 2019

Filed:

Jan. 05, 2018
Applicant:

Schlumberger Technology Corporation, Sugar Land, TX (US);

Inventors:

Ken Stephenson, New Castle, VA (US);

Peter Wraight, Skillman, NJ (US);

Wolfgang Ziegler, Hightstown, NJ (US);

John J. Simonetti, Hamilton, NJ (US);

Christian Stoller, Sugar Land, TX (US);

Irina Molodetsky, Princeton Junction, NJ (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01T 1/20 (2006.01); G01T 1/202 (2006.01); G01V 5/04 (2006.01); H01J 40/18 (2006.01);
U.S. Cl.
CPC ...
G01T 1/2023 (2013.01); G01T 1/2006 (2013.01); G01V 5/04 (2013.01); H01J 40/18 (2013.01);
Abstract

A scintillator type radiation detector package is provided including a scintillation crystal directly coupled to the window of a photomultiplier. A scintillator package is also provided having a longer life at wellbore temperature with minimal deterioration of a hygroscopic scintillation crystal(s). Direct optical coupling of the scintillator to the photomultiplier reduces the amount of light lost at coupling interfaces and improved detection resolution over the conventional structures having separate packages for crystal and photomultiplier.


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