Developing a detection method of environmental 244Pu

S. Winkler; I. Ahmad; R. Golser; W. Kutschera; K. A. Orlandini; M. Paul; A. Priller; P. Steier; A. Valenta; C. Vockenhuber

doi:10.1016/j.nimb.2004.04.151

Developing a detection method of environmental ²⁴⁴Pu

S. Winkler^*, I. Ahmad, R. Golser, W. Kutschera, K. A. Orlandini, M. Paul, A. Priller, P. Steier, A. Valenta, C. Vockenhuber

^*Corresponding author for this work

Racah Institute of Physics

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

The long-lived radionuclide ²⁴⁴Pu (t_1/2=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.

Original language	English
Pages (from-to)	817-822
Number of pages	6
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	223-224
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.nimb.2004.04.151
State	Published - Aug 2004

Keywords

Pu
AMS
Sediments
Supernova

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10.1016/j.nimb.2004.04.151

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Winkler, S., Ahmad, I., Golser, R., Kutschera, W., Orlandini, K. A., Paul, M., Priller, A., Steier, P., Valenta, A., & Vockenhuber, C. (2004). Developing a detection method of environmental ²⁴⁴Pu. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 223-224(SPEC. ISS.), 817-822. https://doi.org/10.1016/j.nimb.2004.04.151

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abstract = "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.",

keywords = "Pu, AMS, Sediments, Supernova",

author = "S. Winkler and I. Ahmad and R. Golser and W. Kutschera and Orlandini, {K. A.} and M. Paul and A. Priller and P. Steier and A. Valenta and C. Vockenhuber",

year = "2004",

month = aug,

doi = "10.1016/j.nimb.2004.04.151",

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Winkler, S, Ahmad, I, Golser, R, Kutschera, W, Orlandini, KA, Paul, M, Priller, A, Steier, P, Valenta, A & Vockenhuber, C 2004, 'Developing a detection method of environmental ²⁴⁴Pu', Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, vol. 223-224, no. SPEC. ISS., pp. 817-822. https://doi.org/10.1016/j.nimb.2004.04.151

TY - JOUR

T1 - Developing a detection method of environmental 244Pu

AU - Winkler, S.

AU - Ahmad, I.

AU - Golser, R.

AU - Kutschera, W.

AU - Orlandini, K. A.

AU - Paul, M.

AU - Priller, A.

AU - Steier, P.

AU - Valenta, A.

AU - Vockenhuber, C.

PY - 2004/8

Y1 - 2004/8

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.

KW - Pu

KW - AMS

KW - Sediments

KW - Supernova

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JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

IS - SPEC. ISS.

ER -

Developing a detection method of environmental ²⁴⁴Pu

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