Development of a primary thoron activity standard for the calibration of thoron measurement instruments
Copyright policy )Development of a primary thoron activity standard for the calibration of thoron measurement instruments
The LNHB and IRSN are working on a reference atmosphere for thoron ((220)Rn) instrument calibration. The LNHB, as the national metrology institute for activity measurement in France, has to create a new thoron reference standard in order to estimate with accuracy the thoron concentration of a reference atmosphere. The measurement system presented in this paper is based on a reference volume using an alpha detector, which is able to measure thoron and its decay products to define the thoron concentration of a thoron reference atmosphere. This paper presents the first results with this new system using a well-known radon ((222)Rn) atmosphere and a thoron ((220)Rn) atmosphere.
standardization, Internationality, [PHYS.NEXP] Physics [physics]/Nuclear Experiment [nucl-ex], thoron, Reproducibility of Results, radon, Equipment Design, Reference Standards, Alpha Particles, Radiation Dosage, Sensitivity and Specificity, Equipment Failure Analysis, alpha detector, metrology, [PHYS.PHYS.PHYS-INS-DET] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Radon, [CHIM.RADIO] Chemical Sciences/Radiochemistry, France, Radiometry
standardization, Internationality, [PHYS.NEXP] Physics [physics]/Nuclear Experiment [nucl-ex], thoron, Reproducibility of Results, radon, Equipment Design, Reference Standards, Alpha Particles, Radiation Dosage, Sensitivity and Specificity, Equipment Failure Analysis, alpha detector, metrology, [PHYS.PHYS.PHYS-INS-DET] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Radon, [CHIM.RADIO] Chemical Sciences/Radiochemistry, France, Radiometry
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