EBIT diagnostics using X-ray spectra of highly ionized Ne

Marco Barbera, Giovanni Peres, Marco Matranga, Antonio Maggio, Eugen Haller, Eric Silver, Martin Laming, Herbert Schnopper, Salvatore Serio, Endre Takács, Jeff Beeman, John Gillaspy, Norman Madden, Marco Barbera, Giovanni Peres, Salvatore Serio

Risultato della ricerca: Other

6 Citazioni (Scopus)

Abstract

We have carried out a detailed analysis of highly ionized neon spectra collected at the NIST EBIT using an NTD germanium X-ray microcalorimeter developed at the Harvard-Smithsonian Center for Astrophysics [Nucl. Instr. and Meth. A 444 (2000) 156]. Our attention was focused especially on the Ne IX He-like triplet to check electron density diagnostics through the intercombination/forbidden line ratio. We have investigated possible effects of the ion dynamics on the plasma emission line intensities, looking at the dependence of the count-rate and the charge state distribution on the electron beam energy and current. The temperature and spatial distribution of the neon ions, and hence the overlap between the electron beam and the ion cloud, depend on the electron beam operating parameters. The overlap affects the average electron density seen by the ions, and in turn the measured line ratio. These results underscore the value of future improved studies of the trapped ion dynamics, both for understanding the EBIT performance and for allowing experimenters to take full advantage of its potential for astrophysical plasma diagnostics. © 2003 Elsevier Science B.V. All rights reserved.
Lingua originaleEnglish
Pagine244-249
Numero di pagine6
Stato di pubblicazionePublished - 2003

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Electron beams
X rays
Neon
Ions
Carrier concentration
electron beams
ions
x rays
neon
Trapped ions
astrophysics
Plasma diagnostics
Astrophysics
Germanium
plasma diagnostics
Spatial distribution
Temperature distribution
calorimeters
germanium
Plasmas

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Instrumentation

Cita questo

Barbera, M., Peres, G., Matranga, M., Maggio, A., Haller, E., Silver, E., ... Serio, S. (2003). EBIT diagnostics using X-ray spectra of highly ionized Ne. 244-249.

EBIT diagnostics using X-ray spectra of highly ionized Ne. / Barbera, Marco; Peres, Giovanni; Matranga, Marco; Maggio, Antonio; Haller, Eugen; Silver, Eric; Laming, Martin; Schnopper, Herbert; Serio, Salvatore; Takács, Endre; Beeman, Jeff; Gillaspy, John; Madden, Norman; Barbera, Marco; Peres, Giovanni; Serio, Salvatore.

2003. 244-249.

Risultato della ricerca: Other

Barbera, M, Peres, G, Matranga, M, Maggio, A, Haller, E, Silver, E, Laming, M, Schnopper, H, Serio, S, Takács, E, Beeman, J, Gillaspy, J, Madden, N, Barbera, M, Peres, G & Serio, S 2003, 'EBIT diagnostics using X-ray spectra of highly ionized Ne' pagg. 244-249.
Barbera, Marco ; Peres, Giovanni ; Matranga, Marco ; Maggio, Antonio ; Haller, Eugen ; Silver, Eric ; Laming, Martin ; Schnopper, Herbert ; Serio, Salvatore ; Takács, Endre ; Beeman, Jeff ; Gillaspy, John ; Madden, Norman ; Barbera, Marco ; Peres, Giovanni ; Serio, Salvatore. / EBIT diagnostics using X-ray spectra of highly ionized Ne. 6 pag.
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title = "EBIT diagnostics using X-ray spectra of highly ionized Ne",
abstract = "We have carried out a detailed analysis of highly ionized neon spectra collected at the NIST EBIT using an NTD germanium X-ray microcalorimeter developed at the Harvard-Smithsonian Center for Astrophysics [Nucl. Instr. and Meth. A 444 (2000) 156]. Our attention was focused especially on the Ne IX He-like triplet to check electron density diagnostics through the intercombination/forbidden line ratio. We have investigated possible effects of the ion dynamics on the plasma emission line intensities, looking at the dependence of the count-rate and the charge state distribution on the electron beam energy and current. The temperature and spatial distribution of the neon ions, and hence the overlap between the electron beam and the ion cloud, depend on the electron beam operating parameters. The overlap affects the average electron density seen by the ions, and in turn the measured line ratio. These results underscore the value of future improved studies of the trapped ion dynamics, both for understanding the EBIT performance and for allowing experimenters to take full advantage of its potential for astrophysical plasma diagnostics. {\circledC} 2003 Elsevier Science B.V. All rights reserved.",
keywords = "Coatings and Films; Instrumentation; Surfaces and Interfaces, EBIT; Excitation; Ionization of atoms; X-ray spectra; Surfaces",
author = "Marco Barbera and Giovanni Peres and Marco Matranga and Antonio Maggio and Eugen Haller and Eric Silver and Martin Laming and Herbert Schnopper and Salvatore Serio and Endre Tak{\'a}cs and Jeff Beeman and John Gillaspy and Norman Madden and Marco Barbera and Giovanni Peres and Salvatore Serio",
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T1 - EBIT diagnostics using X-ray spectra of highly ionized Ne

AU - Barbera, Marco

AU - Peres, Giovanni

AU - Matranga, Marco

AU - Maggio, Antonio

AU - Haller, Eugen

AU - Silver, Eric

AU - Laming, Martin

AU - Schnopper, Herbert

AU - Serio, Salvatore

AU - Takács, Endre

AU - Beeman, Jeff

AU - Gillaspy, John

AU - Madden, Norman

AU - Barbera, Marco

AU - Peres, Giovanni

AU - Serio, Salvatore

PY - 2003

Y1 - 2003

N2 - We have carried out a detailed analysis of highly ionized neon spectra collected at the NIST EBIT using an NTD germanium X-ray microcalorimeter developed at the Harvard-Smithsonian Center for Astrophysics [Nucl. Instr. and Meth. A 444 (2000) 156]. Our attention was focused especially on the Ne IX He-like triplet to check electron density diagnostics through the intercombination/forbidden line ratio. We have investigated possible effects of the ion dynamics on the plasma emission line intensities, looking at the dependence of the count-rate and the charge state distribution on the electron beam energy and current. The temperature and spatial distribution of the neon ions, and hence the overlap between the electron beam and the ion cloud, depend on the electron beam operating parameters. The overlap affects the average electron density seen by the ions, and in turn the measured line ratio. These results underscore the value of future improved studies of the trapped ion dynamics, both for understanding the EBIT performance and for allowing experimenters to take full advantage of its potential for astrophysical plasma diagnostics. © 2003 Elsevier Science B.V. All rights reserved.

AB - We have carried out a detailed analysis of highly ionized neon spectra collected at the NIST EBIT using an NTD germanium X-ray microcalorimeter developed at the Harvard-Smithsonian Center for Astrophysics [Nucl. Instr. and Meth. A 444 (2000) 156]. Our attention was focused especially on the Ne IX He-like triplet to check electron density diagnostics through the intercombination/forbidden line ratio. We have investigated possible effects of the ion dynamics on the plasma emission line intensities, looking at the dependence of the count-rate and the charge state distribution on the electron beam energy and current. The temperature and spatial distribution of the neon ions, and hence the overlap between the electron beam and the ion cloud, depend on the electron beam operating parameters. The overlap affects the average electron density seen by the ions, and in turn the measured line ratio. These results underscore the value of future improved studies of the trapped ion dynamics, both for understanding the EBIT performance and for allowing experimenters to take full advantage of its potential for astrophysical plasma diagnostics. © 2003 Elsevier Science B.V. All rights reserved.

KW - Coatings and Films; Instrumentation; Surfaces and Interfaces

KW - EBIT; Excitation; Ionization of atoms; X-ray spectra; Surfaces

UR - http://hdl.handle.net/10447/214837

M3 - Other

SP - 244

EP - 249

ER -