NanoSIMS and more: New tools in nuclear astrophysics

6th Nuclear Physics in Astrophysics

物理学;天文学

Hoppe, P.^1

Max Planck Institute for Chemistry, Hahn-Meitner-Weg 1, Mainz

55128, Germany^1

关键词: Analysis techniques;    Analytical Instrumentation;    Atom-probe tomography;    Isotope measurements;    Isotopic composition;    Nuclear astro-physics;    Resonance ionization mass spectrometry;    Terrestrial laboratories;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/665/1/012075/pdf
DOI  :  10.1088/1742-6596/665/1/012075

学科分类：天文学(综合)

来源: IOP

【 摘 要 】

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