α(PS)-γ(Ge) digital anti-coincidence spectroscopy and its application to activity measurement of 225 Ac.
- Resource Type
- Academic Journal
- Authors
- Mori KI; Sector of Nuclear Science Research, Japan Atomic Energy Agency, Japan.; Yamada T; Atomic Energy Research Institute, Kindai University, Japan. Electronic address: tyamada@kindai.ac.jp.; Sato Y; Research Institute for Measurement and Analytical Instrumentation, National Metrology Institute of Japan, Japan.; Nagatsu K; Department of Advanced Nuclear Medicine Sciences, National Institutes for Quantum and Radiological Science and Technology, Japan.; Kikunaga H; Research Center for Electron Photon Science, Tohoku University, Japan.
- Source
- Publisher: Pergamon Press Country of Publication: England NLM ID: 9306253 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1872-9800 (Electronic) Linking ISSN: 09698043 NLM ISO Abbreviation: Appl Radiat Isot Subsets: PubMed not MEDLINE; MEDLINE
- Subject
- Language
- English
Activity of 225 Ac 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 225 Ac 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 213 Po decay without β-particle interference from 213 Bi.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
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