Author:
Publisher:
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Category :
Languages : en
Pages :
Book Description
Method and apparatus for measuring incombustible content of particulate material, particularly coal mine dust, includes placing a sample of the particulate material in a container to define a pair of angularly oriented surfaces of the sample, directing an incident gamma-ray beam from a radiation source at one surface of the sample and detecting gamma-ray backscatter from the other surface of the sample with a radiation detector having an output operating a display to indicate incombustible content of the sample. The positioning of the source and detector along different surfaces of the sample permits the depth of the scattering volume defined by intersection of the incident beam and a detection cone from the detector to be selected such that variations in scattered radiation produced by variations in density of the sample are compensated by variations in the attenuation of the incident beam and the gamma-ray backscatter.
Method and Apparatus for Measuring Incombustible Content of Coal Mine Dust Using Gamma-ray Backscatter
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Method and apparatus for measuring incombustible content of particulate material, particularly coal mine dust, includes placing a sample of the particulate material in a container to define a pair of angularly oriented surfaces of the sample, directing an incident gamma-ray beam from a radiation source at one surface of the sample and detecting gamma-ray backscatter from the other surface of the sample with a radiation detector having an output operating a display to indicate incombustible content of the sample. The positioning of the source and detector along different surfaces of the sample permits the depth of the scattering volume defined by intersection of the incident beam and a detection cone from the detector to be selected such that variations in scattered radiation produced by variations in density of the sample are compensated by variations in the attenuation of the incident beam and the gamma-ray backscatter.
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Method and apparatus for measuring incombustible content of particulate material, particularly coal mine dust, includes placing a sample of the particulate material in a container to define a pair of angularly oriented surfaces of the sample, directing an incident gamma-ray beam from a radiation source at one surface of the sample and detecting gamma-ray backscatter from the other surface of the sample with a radiation detector having an output operating a display to indicate incombustible content of the sample. The positioning of the source and detector along different surfaces of the sample permits the depth of the scattering volume defined by intersection of the incident beam and a detection cone from the detector to be selected such that variations in scattered radiation produced by variations in density of the sample are compensated by variations in the attenuation of the incident beam and the gamma-ray backscatter.
Tests for Analyzing the Incombustible Content of Coal Mine Dust Using Instruments Employing a Gamma-ray Backscatter Technique
Author: Frederick E. Armstrong
Publisher:
ISBN:
Category : Coal mines and mining
Languages : en
Pages : 18
Book Description
Publisher:
ISBN:
Category : Coal mines and mining
Languages : en
Pages : 18
Book Description
Determination of Incombustible Content of Mine Dust by Nuclear Method
Author: Joseph W. Martin
Publisher:
ISBN:
Category : Mine dusts
Languages : en
Pages : 20
Book Description
Publisher:
ISBN:
Category : Mine dusts
Languages : en
Pages : 20
Book Description
Tests for Analyzing the Incombustible Content of Coal Mine Dust Using Instruments Employing a Gamma-ray Backscatter Techniques
Author: United States. Bureau of Mines
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Coal Mine Dust Incombustibles Content Analyzer Using a Gamma-ray Backscatter Technique
Author: Frederick E. Armstrong
Publisher:
ISBN:
Category : Coal mines and mining
Languages : en
Pages : 614
Book Description
Publisher:
ISBN:
Category : Coal mines and mining
Languages : en
Pages : 614
Book Description
Tests for Analyzing the Incombustible Content of Coal Mine Dust Using Instruments Employing a Gamma-ray Backscatter Technique
Measurement of Incombustible Content of Coal Mine Dust Samples
Author: Nevin Greninger
Publisher:
ISBN:
Category : Coal mines and mining
Languages : en
Pages : 24
Book Description
Publisher:
ISBN:
Category : Coal mines and mining
Languages : en
Pages : 24
Book Description
Coal Mine Dust Incombustibles Content Analyzer Using a Gamma-ray Backscatter Technique
Author: Frederick E. Armstrong
Publisher:
ISBN:
Category :
Languages : en
Pages : 10
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 10
Book Description
Methods of Sampling and Analyzing Coal-mine Dusts for Incombustible Content
Author: Clarence Watson Owings
Publisher:
ISBN:
Category : Coal mines and mining
Languages : en
Pages : 26
Book Description
Publisher:
ISBN:
Category : Coal mines and mining
Languages : en
Pages : 26
Book Description
Coal Mine Dust Incombustibles Content Analyzer Using a Gamma-ray Backscatter Technique
Author: Frederick E. Armstrong
Publisher:
ISBN:
Category : Coal mines and mining
Languages : en
Pages : 18
Book Description
Publisher:
ISBN:
Category : Coal mines and mining
Languages : en
Pages : 18
Book Description