Schiffer, M., Spanier, R., Mueller-Gatermann, C., Herb, S., Feuerstein, C., Hackenberg, G., Marock, M., Heinze, S., Stolz, A., Dewald, A. and Binnie, S. (2018). The first (Mn-53/Mn-55) isotopic ratio measurements at the Cologne FN-Tandem Accelerator. Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms, 437. S. 87 - 93. AMSTERDAM: ELSEVIER SCIENCE BV. ISSN 1872-9584

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Abstract

A new accelerator mass spectrometer was successfully designed for the Cologne FN accelerator to enlarge the measurement capability of CologneAMS to medium mass radionuclides. With this AMS-system (Mn-53/Mn-55) isotopic ratios are measurable at a 10 MV tandem accelerator in the range of 10(-9) to 10(-10) for the first time, with a detection limit of C-L = 5.0 x 10(-12). A high Cr-53 suppression in the (Mn-53/Mn-55) isotopic ratio measurement was achieved by using the optimal silicon nitride degrader foil thickness in combination with an electrostatic analyzer (ESA). The new system opens the field of research for CologneAMS users to the medium mass region of cosmogenic nuclides, like Mn-53 for geological applications of long term erosion, exposure and burial dating and Fe-60 for nuclear astrophysical models. The presented definition of an error normalized sensitivity S-x allows an inter laboratory comparison of isotopic ratio measurements.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Schiffer, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Spanier, R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Mueller-Gatermann, C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Herb, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Feuerstein, C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hackenberg, G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Marock, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Heinze, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Stolz, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Dewald, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Binnie, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-161982
DOI: 10.1016/j.nimb.2018.09.029
Journal or Publication Title: Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
Volume: 437
Page Range: S. 87 - 93
Date: 2018
Publisher: ELSEVIER SCIENCE BV
Place of Publication: AMSTERDAM
ISSN: 1872-9584
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
DEDICATED AMS SETUP; HEAVY; IDENTIFICATION; FORMULAS; SYSTEM; MN-53; IONSMultiple languages
Instruments & Instrumentation; Nuclear Science & Technology; Physics, Atomic, Molecular & Chemical; Physics, NuclearMultiple languages
Refereed: Yes
URI: http://kups.ub.uni-koeln.de/id/eprint/16198

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