An Electron Beam Ion Trap (EBIT) Plus a Microcalorimeter: A Good Combination for Laboratory Astrophysics
- 1 January 2005
- journal article
- Published by IOP Publishing in Physica Scripta
- Vol. T119, 30-34
- https://doi.org/10.1088/0031-8949/2005/t119/005
Abstract
An EBIT can selectively create, in principle, any charge state of every naturally occurring element, has good control on atomic collision processes, and can produce nearly ideal conditions for the analysis of highly ionized plasmas of astrophysical importance. A microcalorimeter enables the broadband detection of X-ray emission with high energy resolution and near-unity quantum efficiency in the energy range wherein many cosmic X-ray sources emit the bulk of their energy (0.2 keV -10 keV). The combination (EBIT + microcalorimeter) provides a powerful tool for laboratory studies of the atomic/plasma processes underlying the energy release mechanisms in cosmic X-ray sources. We briefly describe some early experiments with a microcalorimeter built by the Smithsonian Astrophysical Observatory (SAO) and deployed on the NIST EBIT. We also present some very recent observations with a more advanced microcalorimeter built by SAO that can obtain an energy resolution of 4.5 eV. The higher spectral quality produced by the new system will be useful in laboratory measurements of interest in X-ray astronomy.Keywords
This publication has 29 references indexed in Scilit:
- The X-ray microcalorimeter instruments on the Astro-E2 and Constellation-X X-ray observatoriesNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2004
- X-ray astronomy in the new millennium: a summaryPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2002
- Lamb Shift in Hydrogenlike Uranium Measured on Cooled, Decelerated Ion BeamsPhysical Review Letters, 2000
- Laboratory Astrophysics Survey of Key X‐Ray Diagnostic Lines Using A Microcalorimeter on an Electron Beam Ion TrapThe Astrophysical Journal, 2000
- Probing Cosmology with the X‐Ray ForestThe Astrophysical Journal, 2000
- The XQC microcalorimeter sounding rocket: a stable LTD platform 30 seconds after rocket motor burnoutNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2000
- X-Ray Astronomy MissionsAnnual Review of Astronomy and Astrophysics, 1992
- Ion beams at GSIInternational Journal of Radiation Applications and Instrumentation. Part D. Nuclear Tracks and Radiation Measurements, 1991
- The Electron Beam Ion Trap: A New Instrument for Atomic Physics MeasurementsPhysica Scripta, 1988
- Evidence for x Rays From Sources Outside the Solar SystemPhysical Review Letters, 1962