title: Measurement of beta-plus emitters by gamma-ray spectrometry.
abstract: The activity measurement of beta-plus emitters by gamma-ray spectrometry is studied. Experimental measurements are performed with (22)Na, (65)Zn and (64)Cu with sources included in a lead container. For these nuclides, the activity can be derived both from one photon emission peak and from the 511 keV annihilation peak, including annihilation in-flight correction and geometry correction computed by Monte Carlo simulation. The activity values obtained using the two types of peaks show satisfying agreement. The extension of the method to volume sources is discussed.
authors.affiliation: CEA, LIST, Laboratoire National Henri Becquerel (LNE-LNHB), Gif-sur-Yvette, France. marie-christine.lepy@cea.fr
authors.forename: Marie-Christine
authors.initials: MC
authors.lastname: Lépy
authors.forename: Philippe
authors.initials: P
authors.lastname: Cassette
authors.forename: Laurent
authors.initials: L
authors.lastname: Ferreux
mesh_terms: D001610:Beta Particles; D003300:Copper / Q000032:analysis; D008722:Methods; D011868:Radioisotopes / Q000032:analysis*; D012964:Sodium / Q000032:analysis; D013051:Spectrometry, Gamma / Q000379:methods*; D015032:Zinc / Q000032:analysis
chemical_list: D011868:Radioisotopes; D003300:Copper; D012964:Sodium; D015032:Zinc