Ion-Optics Calculations and Preliminary Precision Estimates of the Gas-Capable Ion Source for the 1-MV LLNL BioAMS Spectrometer

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Ion-optics calculations were performed for a new ion source and injection beam line. This source, which can accept both solid and gaseous targets, will be installed onto the 1-MV BioAMS spectrometer at the Center for Accelerator Mass Spectrometry, located at Lawrence Livermore National Laboratory and will augment the current LLNL cesium-sputter solid sample ion source. The ion source and its associated injection beam line were designed to allow direct quantification of {sup 14}C/{sup 12}C and {sup 3}H/{sup 1}H isotope ratios from both solid and gaseous targets without the need for isotope switching. Once installed, this source will enable the direct ... continued below

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PDF-file: 19 pages; size: 0.7 Mbytes

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Ognibene, T. J.; Bench, G.; Brown, T. A. & Vogel, J. S. December 13, 2005.

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Ion-optics calculations were performed for a new ion source and injection beam line. This source, which can accept both solid and gaseous targets, will be installed onto the 1-MV BioAMS spectrometer at the Center for Accelerator Mass Spectrometry, located at Lawrence Livermore National Laboratory and will augment the current LLNL cesium-sputter solid sample ion source. The ion source and its associated injection beam line were designed to allow direct quantification of {sup 14}C/{sup 12}C and {sup 3}H/{sup 1}H isotope ratios from both solid and gaseous targets without the need for isotope switching. Once installed, this source will enable the direct linking of a nanoflow LC system to the spectrometer to provide for high-throughput LC-AMS quantitation from a continuous flow. Calculations show that, for small samples, the sensitivity of the gas-accepting ion source could be precision limited but zeptomole quantitation should be feasible.

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PDF-file: 19 pages; size: 0.7 Mbytes

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  • Journal Name: Nuclear Instruments and Methods in Physics Research Sect. B, vol. 259, N/A, January 30, 2007, pp. 100; Journal Volume: 259

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  • Report No.: UCRL-JRNL-217732
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 936458
  • Archival Resource Key: ark:/67531/metadc895446

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  • December 13, 2005

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  • Sept. 27, 2016, 1:39 a.m.

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  • Nov. 29, 2016, 4:28 p.m.

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Ognibene, T. J.; Bench, G.; Brown, T. A. & Vogel, J. S. Ion-Optics Calculations and Preliminary Precision Estimates of the Gas-Capable Ion Source for the 1-MV LLNL BioAMS Spectrometer, article, December 13, 2005; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc895446/: accessed November 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.