First chemical on-line separation and detection of a subsecond alpha-decaying nuclide, Pa-224

Authors
Wierczinski, B Gregorich, KE Kadkhodayan, B Lee, DM Beauvais, LG Hendricks, MB Kacher, CD Lane, MR Keeney-Shaughnessy, DA Stoyer, NJ Strellis, DA Sylwester, ER Wilk, PA Hoffman, DC Malmbeck, R Skarnemark, G Alstad, J Omtvedt, JP Eberhardt, K Mendel, M Nahler, A Trautmann, N
Citation
B. Wierczinski et al., First chemical on-line separation and detection of a subsecond alpha-decaying nuclide, Pa-224, J RAD NUCL, 247(1), 2001, pp. 57-60
Citations number
19
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
ISSN journal
02365731 → ACNP
Volume
247
Issue
1
Year of publication
2001
Pages
57 - 60
Database
ISI
SICI code
0236-5731(200101)247:1<57:FCOSAD>2.0.ZU;2-Q
Abstract
Subsecond Pa-224 (T-1/2 = 0.85 s) was produced via the Bi-209(O-18,3n)Pa-22 4 reaction at the 88 inch cyclotron at the Lawrence Berkeley National Labor atory. After production it was transported via a gas-jet system to the cent rifuge system SISAK 3. Following on-line extraction with trioctylamine/scin tillation solutions from 1M lactic acid, Pa-224 was detected applying on-li ne alpha -liquid scintillation counting. Unambiguous identification was ach ieved using time-correlated alpha-alpha -decay chain analysis. This constit utes the first chemical on-line separation and detection of a subsecond alp ha -decaying nuclide, 0.85-s Pa-224 With the fast extraction system SISAK 3 .