METHOD FOR CALIBRATING A RADIOMETRIC DENSITY MEASURING DEVICE

A method for calibrating a radiometric device for determining and/or monitoring the density of a medium located in a container includes: determining the count rate of the radioactive radiation after it has passed through the empty container on the basis of the activity of the transmitting unit; dete...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Weidenbruch, Simon, Eumann, Sebastian, Iyer, Arun Shankar Venkatesh, Nzitchieu Gadeu, Narcisse Michel, Lange, Jörn
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING
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Beschreibung
Zusammenfassung:	A method for calibrating a radiometric device for determining and/or monitoring the density of a medium located in a container includes: determining the count rate of the radioactive radiation after it has passed through the empty container on the basis of the activity of the transmitting unit; determining the measured count rate of the radioactive radiation after it has passed through the container when a calibration medium of known density is located in the container; determining the mass attenuation coefficient according to the formula μ=−(ln(N/N0))/(ρ1D), where D is a beam path of the radioactive radiation or inner diameter of the container, and ρ1 is density of the calibration medium; and calculating a calibration curve representing the dependence of the density of the medium on the count rate of the measured radiation intensity after the radiation has passed through the container.