Determination of the isomeric fraction in a postaccelerated radioactive ion beam using the coupled decay-chain equations

Andreas Ekström; Joakim Cederkäll; Douglas DiJulio; Claes Fahlander; J. Van de Walle

doi:10.1016/j.nima.2009.12.045

Determination of the isomeric fraction in a postaccelerated radioactive ion beam using the coupled decay-chain equations

Andreas Ekström, Joakim Cederkäll, Douglas DiJulio, Claes Fahlander, J. Van de Walle

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

Abstract

A method based on the coupled decay-chain equations for extracting the isotopic and the isomeric composition of a postaccelerated radioactive ion beam is presented and demonstrated on a data set from a Coulomb excitation experiment. This is the first attempt of analyzing the content of a postaccelerated radioactive ion beam using this technique. The beam composition is required for an absolute normalization of the measurement. The strength of the method, as compared to present online-based methods, lies in the determination of the isomeric fraction of a partially isomeric beam using all data accumulated during the experiment. We discuss the limitations and sensitivity of the method with respect to the gamma-ray detection efficiency and the accumulated flux. (C) 2010 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	303-307
Journal	Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
Volume	614
Issue number	2
DOIs	https://doi.org/10.1016/j.nima.2009.12.045
Publication status	Published - 2010

Subject classification (UKÄ)

Accelerator Physics and Instrumentation

Free keywords

Postaccelerated radioactive ion beam
Isomeric beam
Decay-chain
analysis
GEANT4

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10.1016/j.nima.2009.12.045

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Ekström, A., Cederkäll, J., DiJulio, D., Fahlander, C., & Van de Walle, J. (2010). Determination of the isomeric fraction in a postaccelerated radioactive ion beam using the coupled decay-chain equations. Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 614(2), 303-307. https://doi.org/10.1016/j.nima.2009.12.045

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title = "Determination of the isomeric fraction in a postaccelerated radioactive ion beam using the coupled decay-chain equations",

abstract = "A method based on the coupled decay-chain equations for extracting the isotopic and the isomeric composition of a postaccelerated radioactive ion beam is presented and demonstrated on a data set from a Coulomb excitation experiment. This is the first attempt of analyzing the content of a postaccelerated radioactive ion beam using this technique. The beam composition is required for an absolute normalization of the measurement. The strength of the method, as compared to present online-based methods, lies in the determination of the isomeric fraction of a partially isomeric beam using all data accumulated during the experiment. We discuss the limitations and sensitivity of the method with respect to the gamma-ray detection efficiency and the accumulated flux. (C) 2010 Elsevier B.V. All rights reserved.",

keywords = "Postaccelerated radioactive ion beam, Isomeric beam, Decay-chain, analysis, GEANT4",

author = "Andreas Ekstr{\"o}m and Joakim Cederk{\"a}ll and Douglas DiJulio and Claes Fahlander and {Van de Walle}, J.",

year = "2010",

doi = "10.1016/j.nima.2009.12.045",

language = "English",

volume = "614",

pages = "303--307",

journal = "Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment",

issn = "0167-5087",

publisher = "Elsevier",

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Ekström, A, Cederkäll, J, DiJulio, D, Fahlander, C & Van de Walle, J 2010, 'Determination of the isomeric fraction in a postaccelerated radioactive ion beam using the coupled decay-chain equations', Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, vol. 614, no. 2, pp. 303-307. https://doi.org/10.1016/j.nima.2009.12.045

Determination of the isomeric fraction in a postaccelerated radioactive ion beam using the coupled decay-chain equations. / Ekström, Andreas; Cederkäll, Joakim; DiJulio, Douglas et al.
In: Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, Vol. 614, No. 2, 2010, p. 303-307.

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

TY - JOUR

T1 - Determination of the isomeric fraction in a postaccelerated radioactive ion beam using the coupled decay-chain equations

AU - Ekström, Andreas

AU - Cederkäll, Joakim

AU - DiJulio, Douglas

AU - Fahlander, Claes

AU - Van de Walle, J.

PY - 2010

Y1 - 2010

N2 - A method based on the coupled decay-chain equations for extracting the isotopic and the isomeric composition of a postaccelerated radioactive ion beam is presented and demonstrated on a data set from a Coulomb excitation experiment. This is the first attempt of analyzing the content of a postaccelerated radioactive ion beam using this technique. The beam composition is required for an absolute normalization of the measurement. The strength of the method, as compared to present online-based methods, lies in the determination of the isomeric fraction of a partially isomeric beam using all data accumulated during the experiment. We discuss the limitations and sensitivity of the method with respect to the gamma-ray detection efficiency and the accumulated flux. (C) 2010 Elsevier B.V. All rights reserved.

AB - A method based on the coupled decay-chain equations for extracting the isotopic and the isomeric composition of a postaccelerated radioactive ion beam is presented and demonstrated on a data set from a Coulomb excitation experiment. This is the first attempt of analyzing the content of a postaccelerated radioactive ion beam using this technique. The beam composition is required for an absolute normalization of the measurement. The strength of the method, as compared to present online-based methods, lies in the determination of the isomeric fraction of a partially isomeric beam using all data accumulated during the experiment. We discuss the limitations and sensitivity of the method with respect to the gamma-ray detection efficiency and the accumulated flux. (C) 2010 Elsevier B.V. All rights reserved.

KW - Postaccelerated radioactive ion beam

KW - Isomeric beam

KW - Decay-chain

KW - analysis

KW - GEANT4

U2 - 10.1016/j.nima.2009.12.045

DO - 10.1016/j.nima.2009.12.045

M3 - Article

SN - 0167-5087

VL - 614

SP - 303

EP - 307

JO - Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment

JF - Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment

IS - 2

ER -

Determination of the isomeric fraction in a postaccelerated radioactive ion beam using the coupled decay-chain equations

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Subject classification (UKÄ)

Free keywords

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