title: Development, design and validation of solid reference samples.
abstract: We developed a method of sample preparation using epoxy compound, which was validated in two steps. First, we studied the homogeneity within samples by scanning tubes filled with radioactive epoxy. We found within-sample homogeneity better than 2%. Then, we studied the homogeneity between samples during a 4.5 h dispensing time. The homogeneity between samples was found to be better than 2%. This study demonstrates that we have a validated method, which assures the traceability of epoxy samples.
authors.affiliation: Institute of Radiation Physics, Lausanne, Switzerland. Electronic address: claude.bailat@chuv.ch.
authors.forename: Claude
authors.initials: C
authors.lastname: Bailat
authors.affiliation: Institute of Radiation Physics, Lausanne, Switzerland.
authors.forename: François
authors.initials: F
authors.lastname: Bochud
authors.affiliation: Institute of Radiation Physics, Lausanne, Switzerland.
authors.forename: Frédéric
authors.initials: F
authors.lastname: Juget
authors.affiliation: Institute of Radiation Physics, Lausanne, Switzerland.
authors.forename: Thierry
authors.initials: T
authors.lastname: Buchillier
keywords: Activity; Epoxy; Gamma spectrometry; Radionuclide; Solid sample; Standards