A Labview based FPGA data acquisition with integrated stage and beam transport control

Abstract We report on a new FPGA based data acquisition system developed for the CSIRO Nuclear Microprobe (NMP) which is tightly integrated with both target positioning and beam transport. The data acquisition system called MicrodaQ is based on National Instruments Labview FPGA and numerous instrumentation modules spread over several PC’s. Beam transport uses a feedback control loop to optimise current on target for long unmanned experiments. These upgrades are discussed in detail and an example of the systems use for μ-Particle Induced X-ray Emission (PIXE) analysis on a Doriri apatite is briefly described.

[1]  C. Ryan,et al.  Impurity mapping in sulphide minerals using Time-resolved Ion Beam Induced Current imaging , 2010 .

[2]  Andrew A. Bettiol,et al.  A new data acquisition and imaging system for nuclear microscopy based on a Field Programmable Gate Array card , 2009 .

[3]  C. Ryan,et al.  The Maia 384 detector array in a nuclear microprobe: A platform for high definition PIXE elemental imaging , 2010 .

[4]  C. Ryan PIXE and the nuclear microprobe: Tools for quantitative imaging of complex natural materials , 2011 .

[5]  W. Griffin,et al.  The new CSIRO-GEMOC nuclear microprobe: First results, performance and recent applications , 2001 .

[6]  Milko Jakšić,et al.  Digital pulse processor for ion beam microprobe imaging , 2009 .

[7]  J. Laird,et al.  New problems in nuclear microprobe analysis of materials , 1999 .

[8]  C. Ryan,et al.  Hyper-spectral ionoluminescence system for minerals and fluid inclusions , 2011 .

[9]  A. Bettiol,et al.  Mapping REE distribution in scheelite using luminescence , 2000, Mineralogical Magazine.

[10]  Milko Jakšić,et al.  Digital pulse processor for ion beam microprobe tomography , 2009 .

[11]  D. P. Siddons,et al.  Large detector array and real-time processing and elemental image projection of X-ray and proton microprobe fluorescence data , 2007 .

[12]  David N. Jamieson,et al.  Dynamic analysis: on-line quantitative PIXE microanalysis and its use in overlap-resolved elemental mapping , 1993 .

[13]  R. Day,et al.  The identification of growth lines in abalone shell using a nuclear microprobe , 1999 .

[14]  D. P. Siddons,et al.  Elemental X-ray imaging using the Maia detector array: The benefits and challenges of large solid-angle , 2009 .