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α(PS)–γ(Ge) digital anti-coincidence spectroscopy and its application to activity measurement of 225Ac.
- Source :
-
Applied Radiation & Isotopes . Dec2023, Vol. 202, pN.PAG-N.PAG. 1p. - Publication Year :
- 2023
-
Abstract
- Activity of 225Ac was measured by the digital anti-coincidence spectroscopy technique using a 4πα–γ detector configuration, composed of a sandwich type 4π plastic scintillator and Ge detectors. Ultrathin plastic scintillators were used for selective detection of α-particles emitted from 225Ac and its progenies, and the α-counting efficiencies of a 4π plastic scintillation detector for individual nuclides in the decay chain were determined as well. A list-mode multichannel analyzer was employed to record coincidence/anti-coincidence events for off-line analyses. The time difference distribution spectra revealed α-particle emission following 213Po decay without β-particle interference from 213Bi. • Selective α-particle detection using ultrathin plastic scintillators for 225Ac. • Individual α-efficiencies determined by 4πα(PS)–γ(Ge) anti-coincidence spectroscopy. • α-particles from short-lived 213Po(T 1/2 = 3.7 μs) detected without interference. • Effect of β-particle from 213Bi confirmed from γ–α/β time difference distribution. • Results were consistent with those obtained using the CN method with LSC. [ABSTRACT FROM AUTHOR]
- Subjects :
- *SCINTILLATION counters
*SPECTROMETRY
*SCINTILLATORS
*NUCLIDES
*DETECTORS
Subjects
Details
- Language :
- English
- ISSN :
- 09698043
- Volume :
- 202
- Database :
- Academic Search Index
- Journal :
- Applied Radiation & Isotopes
- Publication Type :
- Academic Journal
- Accession number :
- 173314302
- Full Text :
- https://doi.org/10.1016/j.apradiso.2023.111061