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Status of the PSI/ETH compact AMS facility

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Title: Status of the PSI/ETH compact AMS facility
Authors: Stocker, M.1 martin.stocker@phys.ethz.ch, Bertschinger, R.1, Döbeli, M.2, Grajcar, M.1, Jacob, S.1, Scheer, J.1, Suter, M.1, Synal, H.-A.2
Source: Nuclear Instruments & Methods in Physics Research Section B. Aug2004, Vol. 223-224, p104-108. 5p.
Subjects: Carbon isotopes, Optics, Detectors, Accelerator mass spectrometry
Abstract: The compact AMS facility at PSI/ETH Zurich, primarily designed to measure radiocarbon in charge state 1+, has been upgraded for measurements of 10Be, 26Al, 41Ca, 129I and Pu isotopes. Additional apertures have been placed in the focal planes of charge state 3+ and new Faraday cups have been installed to monitor the corresponding stable isotopes. A high-resolution time-of-flight detector has also been built in order to identify sources of background. For final detection a gas ionisation chamber with a thin Si3N4 entrance window has been successfully tested. Charge state distributions, scattering losses and machine transmission for the newly investigated elements have been determined. Total transmissions are comparable to the values obtained at the Zurich EN-Tandem AMS facility. In all cases detection limits are given by background levels which are about 10-12 for 10Be, 41Ca and 129I, 7 × 10-14 for 26Al and 106 atoms for Pu. [Copyright &y& Elsevier]
Copyright of Nuclear Instruments & Methods in Physics Research Section B is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 14168734
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Status of the PSI/ETH compact AMS facility
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  Data: <searchLink fieldCode="JN" term="%22Nuclear+Instruments+%26+Methods+in+Physics+Research+Section+B%22">Nuclear Instruments & Methods in Physics Research Section B</searchLink>. Aug2004, Vol. 223-224, p104-108. 5p.
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  Data: <searchLink fieldCode="DE" term="%22Carbon+isotopes%22">Carbon isotopes</searchLink><br /><searchLink fieldCode="DE" term="%22Optics%22">Optics</searchLink><br /><searchLink fieldCode="DE" term="%22Detectors%22">Detectors</searchLink><br /><searchLink fieldCode="DE" term="%22Accelerator+mass+spectrometry%22">Accelerator mass spectrometry</searchLink>
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  Data: The compact AMS facility at PSI/ETH Zurich, primarily designed to measure radiocarbon in charge state 1+, has been upgraded for measurements of 10Be, 26Al, 41Ca, 129I and Pu isotopes. Additional apertures have been placed in the focal planes of charge state 3+ and new Faraday cups have been installed to monitor the corresponding stable isotopes. A high-resolution time-of-flight detector has also been built in order to identify sources of background. For final detection a gas ionisation chamber with a thin Si3N4 entrance window has been successfully tested. Charge state distributions, scattering losses and machine transmission for the newly investigated elements have been determined. Total transmissions are comparable to the values obtained at the Zurich EN-Tandem AMS facility. In all cases detection limits are given by background levels which are about 10-12 for 10Be, 41Ca and 129I, 7 × 10-14 for 26Al and 106 atoms for Pu. [Copyright &y& Elsevier]
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  Data: <i>Copyright of Nuclear Instruments & Methods in Physics Research Section B is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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