Integrated coupling of scintillation crystal with photomultiplier in a detector apparatus

US10436918B2 · kind B2 · utility

Assignee

• SCHLUMBERGER TECHNOLOGY CORPORATION · US

Inventors

• Ken Stephenson · New Castle, US
• Peter Wraight · Skillman, US
• Wolfgang Ziegler · Waldbronn, DE
• John J. Simonetti · Hillsborough Township, US
• Christian Stoller · Princeton Junction, US
• Irina Molodetsky · Princeton Junction, US

Key dates

• Filing date: Jan 5, 2018
• Grant date: Oct 8, 2019
• Expiry date: Jan 5, 2038

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01J40/18
• WIPO field: Environmental technology
• WIPO sector: Chemistry

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.