TY - GEN
T1 - Developing a detection method of environmental 244Pu
AU - Winkler, Stephan
AU - Ahmad, Irshad
AU - Golser, Robin
AU - Kutschera, Walter
AU - Orlandini, Kent A.
AU - Paul, Michael
AU - Priller, Alfred
AU - Steier, Peter
AU - Valenta, Angelika
AU - Vockenhuber, Christof
N1 - Zeitschrift: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
DOI: 10.1016/j.nimb.2004.04.151
Coden: NIMBE
Affiliations: Vienna Environ. Research Accelerator, Inst. Isotopenforschung/Kernphysik, Universität Wien, Währinger Str. 17, A-1090 Vienna, Austria; Physics Division, Argonne National Laboratory, Argonne, IL 60439, United States; Environmental Research Division, Argonne National Laboratory, Argonne, IL 60439, United States; Racah Institute of Physics, Hebrew University of Jerusalem, 91904 Jerusalem, Israel; Erich Schmid Inst. M., Osterreichischen Akad. der Wiss., Inst. Metallphysik Montanuniv. L., Jahnstraße 12, A-8700 Leoben, Austria; Department of Nuclear Physics, Res. Sch. of Phys. Sci./Engineering, Australian National University, Canberra, ACT 0200, Australia
Adressen: Winkler, S.; Department of Nuclear Physics; Res. Sch. of Phys. Sci./Engineering; Australian National University Canberra, ACT 0200, Australia; email: [email protected]
Import aus Scopus: 2-s2.0-3943108133
PY - 2004
Y1 - 2004
N2 - The long-lived radionuclide 244Pu (t1/2=80.8±1.0 Ma) is a candidate for the detection as a live remnant of close-lying and relatively recent supernovae in geological records on the earth. We will present the development of an AMS method for measuring 244Pu at the low abundance levels which are expected for natural 244Pu. For artificial samples prepared from chemically pure reagents a sensitivity of more than 3 × 10−6 counts in detector per atom in sputter target was achieved. For true sediment samples the detector background induced by chemical impurities and possible cross contamination from high level standards were identified as the present limitations.
AB - The long-lived radionuclide 244Pu (t1/2=80.8±1.0 Ma) is a candidate for the detection as a live remnant of close-lying and relatively recent supernovae in geological records on the earth. We will present the development of an AMS method for measuring 244Pu at the low abundance levels which are expected for natural 244Pu. For artificial samples prepared from chemically pure reagents a sensitivity of more than 3 × 10−6 counts in detector per atom in sputter target was achieved. For true sediment samples the detector background induced by chemical impurities and possible cross contamination from high level standards were identified as the present limitations.
U2 - 10.1016/j.nimb.2004.04.151
DO - 10.1016/j.nimb.2004.04.151
M3 - Contribution to proceedings
T3 - Nuclear Instruments & Methods in Physics Research. Section B. Beam Interactions with Materials and Atoms
SP - 817
EP - 822
BT - Proceedings of the Ninth International Conference on Accelerator Mass Spectrometry
A2 - Andersen, H.H.
PB - Elsevier BV, North-Holland
ER -