Laboratory astrophysics survey of key x-ray diagnostic lines using a microcalorimeter on an electron beam ion trap

E. Silver, H. Schnopper, S. Bandler, N. Brickhouse, S. Murray, M. Barbera, E. Takács, J. D. Gillaspy, J. V. Porto, I. Kink, J. M. Laming, N. Madden, D. Landis, J. Beeman, E. E. Haller

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

Cosmic plasma conditions created in an electron beam ion trap (EBIT) make it possible to simulate the dependencies of key diagnostic X-ray lines on density, temperature, and excitation conditions that exist in astrophysical sources. We used a microcalorimeter for such laboratory astrophysics studies because it has a resolving power ≈1000, quantum efficiency approaching 100%, and a bandwidth that spans the X-ray energies from 0.2 keV to 10 keV. Our microcalorimeter, coupled with an X-ray optic to increase the effective solid angle, provides a significant new capability for laboratory astrophysics measurements. Broadband spectra obtained from the National Institute of Standards and Technology EBIT with an energy resolution approaching that of a Bragg crystal spectrometer are presented for nitrogen, oxygen, neon, argon, and krypton in various stages of ionization. We have compared the measured line intensities to theoretical predictions for an EBIT plasma.

Original languageEnglish
Pages (from-to)495-500
Number of pages6
JournalAstrophysical Journal
Volume541
Issue number1 PART 1
Publication statusPublished - Sep 20 2000

Fingerprint

laboratory astrophysics
astrophysics
calorimeters
electron beams
electron
ion
cosmic plasma
krypton
plasma
x rays
neon
geometrical optics
argon
energy
quantum efficiency
ionization
spectrometer
spectrometers
crystal
broadband

Keywords

  • Atomic data
  • Atomic processes
  • Line: Identification
  • Methods: Laboratory plasmas
  • X-rays: General

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Space and Planetary Science

Cite this

Silver, E., Schnopper, H., Bandler, S., Brickhouse, N., Murray, S., Barbera, M., ... Haller, E. E. (2000). Laboratory astrophysics survey of key x-ray diagnostic lines using a microcalorimeter on an electron beam ion trap. Astrophysical Journal, 541(1 PART 1), 495-500.

Laboratory astrophysics survey of key x-ray diagnostic lines using a microcalorimeter on an electron beam ion trap. / Silver, E.; Schnopper, H.; Bandler, S.; Brickhouse, N.; Murray, S.; Barbera, M.; Takács, E.; Gillaspy, J. D.; Porto, J. V.; Kink, I.; Laming, J. M.; Madden, N.; Landis, D.; Beeman, J.; Haller, E. E.

In: Astrophysical Journal, Vol. 541, No. 1 PART 1, 20.09.2000, p. 495-500.

Research output: Contribution to journalArticle

Silver, E, Schnopper, H, Bandler, S, Brickhouse, N, Murray, S, Barbera, M, Takács, E, Gillaspy, JD, Porto, JV, Kink, I, Laming, JM, Madden, N, Landis, D, Beeman, J & Haller, EE 2000, 'Laboratory astrophysics survey of key x-ray diagnostic lines using a microcalorimeter on an electron beam ion trap', Astrophysical Journal, vol. 541, no. 1 PART 1, pp. 495-500.
Silver E, Schnopper H, Bandler S, Brickhouse N, Murray S, Barbera M et al. Laboratory astrophysics survey of key x-ray diagnostic lines using a microcalorimeter on an electron beam ion trap. Astrophysical Journal. 2000 Sep 20;541(1 PART 1):495-500.
Silver, E. ; Schnopper, H. ; Bandler, S. ; Brickhouse, N. ; Murray, S. ; Barbera, M. ; Takács, E. ; Gillaspy, J. D. ; Porto, J. V. ; Kink, I. ; Laming, J. M. ; Madden, N. ; Landis, D. ; Beeman, J. ; Haller, E. E. / Laboratory astrophysics survey of key x-ray diagnostic lines using a microcalorimeter on an electron beam ion trap. In: Astrophysical Journal. 2000 ; Vol. 541, No. 1 PART 1. pp. 495-500.
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