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High Performance Non-Dispersive X-Ray Spectrometers for Charge Exchange MeasurementsCurrently, the only measurements of cosmological charge exchange have been made using low resolution, non-dispersive spectrometers like the PSPC on ROSAT and the CCD instruments on Chandra and XMM/Newton. However, upcoming cryogenic spectrometers on Astro-H and IXO will add vast new capabilities to investigate charge exchange in local objects such as comets and planetary atmospheres. They may also allow us to observe charge exchange in extra-solar objects such as galactic supernova remnants. With low spectral resolution instruments such as CCDs, x-ray emission due to charge exchange recombination really only provides information on the acceptor species, such as the solar wind. With the new breed of x-ray calorimeter instruments, emission from charge exchange becomes highly diagnostic allowing one to uniquely determine the acceptor species, ionization state, donor species and ionization state, and the relative velocity of the interaction. We will describe x-ray calorimeter instrumentation and its potential for charge exchange measurements in the near term. We will also touch on the instrumentation behind a decade of high resolution measurements of charge exchange using an x-ray calorimeter at the Lawrence Livermore National Laboratory.
Document ID
20100031088
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Porter Frederick
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Adams, J.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Beiersdorfer, P.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Brown, G. V.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Karkatoua, D.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Kelley, R. L.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Kilbourne, C. A.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Lautenagger, M.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 25, 2013
Publication Date
January 1, 2010
Subject Category
Instrumentation And Photography
Meeting Information
Meeting: Charge Exchange Workshop
Location: Madrid
Country: Spain
Start Date: September 29, 2010
End Date: October 1, 2010
Distribution Limits
Public
Copyright
Other

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