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  NanoSIMS and more: New tools in nuclear astrophysics

Hoppe, P. (2016). NanoSIMS and more: New tools in nuclear astrophysics. doi:10.1088/1742-6596/665/1/012075.

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 Creators:
Hoppe, Peter1, Author              
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1Particle Chemistry, Max Planck Institute for Chemistry, Max Planck Society, ou_1826291              

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 Abstract: Primitive Solar System materials contain nm- to μm-sized presolar grains that formed in the winds of evolved stars and in the ejecta of stellar explosions. These samples of stardust can be analysed in terrestrial laboratories with sophisticated analytical instrumentation in great detail. Of particular importance are coordinated studies of individual grains by Secondary Ion Mass Spectrometry (SIMS), Resonance Ionization Mass Spectrometry (RIMS) and Focused Ion Beam/Transmission Electron Microscopy (FIB/TEM) from which detailed information on isotopic compositions and mineralogies can be obtained. A key tool is the NanoSIMS 50 ion probe which permits to do isotope measurements of light and many intermediate-mass elements with spatial resolutions of < 100 nm. A new type of RIMS instrument, "CHILI", is currently under construction and is aimed to provide < 100 nm resolution for isotope studies of intermediate-mass and heavy elements. Another promising analysis technique for future studies is Atom Probe Tomography (APT) which might be useful to create 3D-elemental and isotopic maps of presolar grains at the nanometer scale.

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 Dates: 2016
 Publication Status: Published online
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Title: Nuclear Physics in Astrophysics VI (NPA6)
Source Genre: Proceedings
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Pages: European Phys Soc, Nucl Phys Div; European Phys Soc; Sociedade Portuguesa Fisica; Sociedade Portuguesa Astronomia; Univ Lisboa, Centro Fisica Nucl; Univ Nova Lisboa, Faculdade Ciencias Tecnologia; Univ Coimbra, Departamento Fisica; Observatorio Astronomico Lisboa; Laboratorio Sistemas Instrumentacao Modelacao Ciencias Tecnologias Ambiente Espaco; ATHENA; JINA; Nucl Astropys Virtual Inst; Fundacao Cienceia Technologia; Helmholtz Int Ctr FAIR; EMMi; Baltic Sci Instruments; ATI Sistemas; HV; TAP Portugal Volume / Issue: - Sequence Number: 012075 Start / End Page: - Identifier: ISSN: 1742-6588
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Title: Journal of Physics Conference Series
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Pages: - Volume / Issue: 665 Sequence Number: - Start / End Page: - Identifier: ISSN: 1742-6588