Patent · US Expired

Radiation sensor

US5334838A · kind A · utility

9Cited by
7References
7Claims
0Family size

Assignee

Inventor

Key dates

Filing dateDec 11, 1992
Grant dateAug 2, 1994
Priority date
Expiry dateDec 11, 2012

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01T7/00
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A radiation-sensing assembly adapted for sensing radiation emitted from a source of radiation which may be non-coal layers (shale and other materials) in a coal mine tunnel. The sensor assembly incudes a housing forming an enclosure for a radiation-sensing medium. A cover is provided on the top of the lower portion of the housing, and radiation passes through the cover to impinge on the sensing machine. The cover includes a collimator, which is built into the cover, to direct the radiation from the source to the sensing medium.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.