The first four years of the AMS-facility DREAMS: Status and developments for more accurate radionuclide data

Georg Rugel; Stefan Pavetich; Shavkat Akhmadaliev; Santiago Miguel Enamorado Baez; Andreas Scharf; René Ziegenrücker; Silke Merchel

doi:10.1016/j.nimb.2016.01.012

The first four years of the AMS-facility DREAMS: Status and developments for more accurate radionuclide data

Georg Rugel^*, Stefan Pavetich, Shavkat Akhmadaliev, Santiago Miguel Enamorado Baez, Andreas Scharf, René Ziegenrücker, Silke Merchel

^*Corresponding author for this work

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Abstract

DREAMS, the DREsden AMS-facility, is performing routine accelerator mass spectrometry of ¹⁰Be, ²⁶Al, ³⁶Cl, ⁴¹Ca, and ¹²⁹I for a wide range of applications. All DREAMS-data is normalised directly to primary standards or traceable to those via cross-calibration of secondary standards. Recent technical developments such as a low-memory ion source for ³⁶Cl and ¹²⁹I and sophisticated tuning strategies for ¹²⁹I led to improved-accuracy data. Tests of ion source output have been performed with different metal binders, sample-to-binder mixing ratios, and compaction pressures in order to find optimal parameters. The highest and most stable outputs have been obtained for ¹⁰Be, ²⁶Al, and ⁴¹Ca for the following binders and mixing ratios (by weight): BeO:Nb, 1:4; Al₂O₃:Ag, 1:1; CaF₂:Ag, 1:4. Higher beam currents generally result in reduced statistical uncertainty. Cross-contamination and long-term memory seem to be underestimated problems asking for further tests and improvements such as the development of low-level in-house-standards.

Original language	English
Pages (from-to)	94-100
Number of pages	7
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	370
DOIs	https://doi.org/10.1016/j.nimb.2016.01.012
Publication status	Published - 1 Mar 2016
Externally published	Yes

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Rugel, G., Pavetich, S., Akhmadaliev, S., Enamorado Baez, S. M., Scharf, A., Ziegenrücker, R., & Merchel, S. (2016). The first four years of the AMS-facility DREAMS: Status and developments for more accurate radionuclide data. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 370, 94-100. https://doi.org/10.1016/j.nimb.2016.01.012

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title = "The first four years of the AMS-facility DREAMS: Status and developments for more accurate radionuclide data",

abstract = "DREAMS, the DREsden AMS-facility, is performing routine accelerator mass spectrometry of 10Be, 26Al, 36Cl, 41Ca, and 129I for a wide range of applications. All DREAMS-data is normalised directly to primary standards or traceable to those via cross-calibration of secondary standards. Recent technical developments such as a low-memory ion source for 36Cl and 129I and sophisticated tuning strategies for 129I led to improved-accuracy data. Tests of ion source output have been performed with different metal binders, sample-to-binder mixing ratios, and compaction pressures in order to find optimal parameters. The highest and most stable outputs have been obtained for 10Be, 26Al, and 41Ca for the following binders and mixing ratios (by weight): BeO:Nb, 1:4; Al2O3:Ag, 1:1; CaF2:Ag, 1:4. Higher beam currents generally result in reduced statistical uncertainty. Cross-contamination and long-term memory seem to be underestimated problems asking for further tests and improvements such as the development of low-level in-house-standards.",

keywords = "Accelerator mass spectrometry, Cosmogenic nuclides, Long-lived radionuclides",

author = "Georg Rugel and Stefan Pavetich and Shavkat Akhmadaliev and {Enamorado Baez}, {Santiago Miguel} and Andreas Scharf and Ren{\'e} Ziegenr{\"u}cker and Silke Merchel",

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Rugel, G, Pavetich, S, Akhmadaliev, S, Enamorado Baez, SM, Scharf, A, Ziegenrücker, R & Merchel, S 2016, 'The first four years of the AMS-facility DREAMS: Status and developments for more accurate radionuclide data', Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, vol. 370, pp. 94-100. https://doi.org/10.1016/j.nimb.2016.01.012

The first four years of the AMS-facility DREAMS: Status and developments for more accurate radionuclide data. / Rugel, Georg; Pavetich, Stefan; Akhmadaliev, Shavkat et al.
In: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, Vol. 370, 01.03.2016, p. 94-100.

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

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T1 - The first four years of the AMS-facility DREAMS

T2 - Status and developments for more accurate radionuclide data

AU - Rugel, Georg

AU - Pavetich, Stefan

AU - Akhmadaliev, Shavkat

AU - Enamorado Baez, Santiago Miguel

AU - Scharf, Andreas

AU - Ziegenrücker, René

AU - Merchel, Silke

PY - 2016/3/1

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N2 - DREAMS, the DREsden AMS-facility, is performing routine accelerator mass spectrometry of 10Be, 26Al, 36Cl, 41Ca, and 129I for a wide range of applications. All DREAMS-data is normalised directly to primary standards or traceable to those via cross-calibration of secondary standards. Recent technical developments such as a low-memory ion source for 36Cl and 129I and sophisticated tuning strategies for 129I led to improved-accuracy data. Tests of ion source output have been performed with different metal binders, sample-to-binder mixing ratios, and compaction pressures in order to find optimal parameters. The highest and most stable outputs have been obtained for 10Be, 26Al, and 41Ca for the following binders and mixing ratios (by weight): BeO:Nb, 1:4; Al2O3:Ag, 1:1; CaF2:Ag, 1:4. Higher beam currents generally result in reduced statistical uncertainty. Cross-contamination and long-term memory seem to be underestimated problems asking for further tests and improvements such as the development of low-level in-house-standards.

AB - DREAMS, the DREsden AMS-facility, is performing routine accelerator mass spectrometry of 10Be, 26Al, 36Cl, 41Ca, and 129I for a wide range of applications. All DREAMS-data is normalised directly to primary standards or traceable to those via cross-calibration of secondary standards. Recent technical developments such as a low-memory ion source for 36Cl and 129I and sophisticated tuning strategies for 129I led to improved-accuracy data. Tests of ion source output have been performed with different metal binders, sample-to-binder mixing ratios, and compaction pressures in order to find optimal parameters. The highest and most stable outputs have been obtained for 10Be, 26Al, and 41Ca for the following binders and mixing ratios (by weight): BeO:Nb, 1:4; Al2O3:Ag, 1:1; CaF2:Ag, 1:4. Higher beam currents generally result in reduced statistical uncertainty. Cross-contamination and long-term memory seem to be underestimated problems asking for further tests and improvements such as the development of low-level in-house-standards.

KW - Accelerator mass spectrometry

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KW - Long-lived radionuclides

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M3 - Article

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SP - 94

EP - 100

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

ER -

The first four years of the AMS-facility DREAMS: Status and developments for more accurate radionuclide data

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