Radiation detection apparatus and related method

US10620324B2 · kind B2 · utility

Assignee

• Baker Hughes Oilfield Operations LLC · US

Inventors

• Srinidhi Ramachandra · Bengaluru, IN
• Wusheng Xu · Shanghai, CN
• Alok Mani Srivastava · San Francisco, US
• Gopi Chandran Ramachandran · Savanuru, IN
• Prasanth Kumar Nammalwar · Savanuru, IN
• Sergei Ivanovich Dolinsky · Clifton Park, US
• Helene Claire Climent · Sugar Land, US

Key dates

• Filing date: May 14, 2015
• Grant date: Apr 14, 2020
• Expiry date: May 19, 2035

Classification

• Technology area (CPC G): Physics
• CPC primary: G01V5/04
• WIPO field: Environmental technology
• WIPO sector: Chemistry

Abstract

A method and an apparatus for detecting photons are disclosed. The apparatus includes a scintillator single crystal and an avalanche photodiode coupled to the scintillator single crystal. The scintillator single crystal is at a temperature greater than about 175° C. and at a shock level in a range from about 20 Grms to about 30 Grms. The scintillator single crystal includes a praseodymium doped composition selected from (LaxY1-x)2Si2O7:Pr, ABCl3-yXy:Pr, A2(Li,Na)LaCl6-yXy:Pr, or any combinations thereof. As used herein A is cesium, rubidium, potassium, sodium, or a combination thereof, B is calcium, barium, strontium, magnesium, cadmium, zinc, or a combination thereof, and X is bromine, iodine, or a combination thereof. Further, (0<x<1), and (0<y<3).