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Determination of (210)Pb and (226)Ra/(228)Ra in continental water using HIDEX 300SL LS-spectrometer with TDCR efficiency tracing and optimized α/β-discrimination.
Journal article

Determination of (210)Pb and (226)Ra/(228)Ra in continental water using HIDEX 300SL LS-spectrometer with TDCR efficiency tracing and optimized α/β-discrimination.

  • Eikenberg J Division for Radiation Safety and Security, Radioanalytics, Paul Scherrer Institute - PSI, CH-5232 Villigen, Switzerland. Electronic address: jost.eikenberg@psi.ch.
  • Beer H Division for Radiation Safety and Security, Radioanalytics, Paul Scherrer Institute - PSI, CH-5232 Villigen, Switzerland. Electronic address: heide.beer@psi.ch.
  • Jäggi M Division for Radiation Safety and Security, Radioanalytics, Paul Scherrer Institute - PSI, CH-5232 Villigen, Switzerland. Electronic address: maya.jaeggi@psi.ch.
  • 2014-03-19
Published in:
  • Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine. - 2014
Alpha/beta separation
Fast radiochemical method
Liquid scintillation counting
Radium isotope measurement
TDCR measurement technique
Actinium
Alpha Particles
Beta Particles
Humans
Lead Radioisotopes
Radium
Radon Daughters
Scintillation Counting
Switzerland
Water Pollutants, Radioactive
Water Supply
English An analytical method for determination of (210)Pb, (226)Ra and (228)Ra is presented based on adsorption on 3M Empore RadDiscs, and measurement applying liquid scintillation spectrometry (LSC) after elution. The LSC measurement was performed with optimized α/β-discrimination and isotope standardization using the triple to double coincidence ratio (TDCR). The consistency of measurement results between radioactive parent-daughter pairs (210)Pb/(210)Bi, (226)Ra/(222)Rn and (228)Ra/(228)Ac was checked in long-term counting experiments and the influence ofinterference of in-growing daughters from (226)Ra into the β-spectrum of (228)Ra+(228)Ac was studied as well. Recommendations for optimized LSC (228)Ra measurement besides presence of (226)Ra are given.
Language
  • English
Open access status
closed
Identifiers
Persistent URL
https://folia.unifr.ch/global/documents/278271
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