Laboratory measurement of charge exchange X-ray emission for diagnosing the Solar wind and planetary and cometary atmospheres

Details Laboratory measurement of charge exchange X-ray emission for diagnosing the Solar wind and planetary and cometary atmospheres Laboratory measurement of charge exchange X-ray emission for diagnosing the Solar wind and planetary and cometary atmospheres

May 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agusm.p43a..02b&link_type=abstract

American Geophysical Union, Spring Meeting 2005, abstract #P43A-02

Astronomy and Astrophysics

Astronomy

2164 Solar Wind Plasma, 2194 Instruments And Techniques

Scientific paper

We have used the EBIT-I electron beam ion trap located at the University of California Lawrence Livermore National Laboratory and a microcalorimeter array to create and measure the X-ray emission from charge exchange recombination reactions. The microcalorimeter array, dubbed the XRS/EBIT, was built by the NASA-Goddard Space Flight Center/University of Wisconsin collaboration and is in operation at the LLNL EBIT-I facility. It consists of 32 independent microcalorimeter elements that work in concert to provide a large collection area, high-resolution, large bandwidth x-ray spectrometer. Our studies have focussed on X-ray emission from charge exchange reactions that occur after Solar wind ions interact with cometary or planetary atmospheres. Here we present an overview of our measurement techniques and capabilities, and the utility of our results. This work is especially timely in light of the upcoming launch of the Astro-E2 X-ray observatory which will provide the first ever high resolution X-ray spectrum emitted from a comet. This work was performed under the auspices of the Department of Energy by UC-LLNL under contract W-7405-ENG-48 and supported by NASA's Planetary Atmospheres Program under Work Order W-19,938.

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