Spatially resolved X-ray spectroscopy of an ECR plasma - Indication for evaporative cooling

E. Takács, B. Radics, C. I. Szabó, S. Biri, L. T. Hudson, J. Imrek, B. Juhász, T. Suta, A. Valek, J. Pálinkás

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

We have used an X-ray CCD camera in single photon counting mode and a pinhole to obtain spatially and spectrally resolved images of the plasma of an electron cyclotron resonance ion source. Software based on the CERN ROOT package was developed to process and analyse the data. Comparison of plasma images from trapped xenon to that from a xenon-argon mixture provides evidence for evaporative cooling of the ion cloud in ECR ion sources. This results in more localised and highly charged ion clouds when lighter-mass argon gas is added to a heavy-ion xenon plasma. This observation can have implications on the thermodynamics and charge state balance in astrophysical and other laboratory plasmas.

Original languageEnglish
Pages (from-to)120-125
Number of pages6
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume235
Issue number1-4
DOIs
Publication statusPublished - Jul 2005

Fingerprint

evaporative cooling
X ray spectroscopy
Xenon
indication
xenon
Cooling
Plasmas
Argon
Ion sources
ion sources
spectroscopy
x rays
X ray cameras
argon
Ions
Heavy Ions
Electron cyclotron resonance
pinholes
CCD cameras
electron cyclotron resonance

Keywords

  • ECR plasma
  • Evaporative cooling
  • Highly charged ions
  • Spectroscopic imaging
  • X-ray spectroscopy

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Instrumentation
  • Surfaces and Interfaces

Cite this

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title = "Spatially resolved X-ray spectroscopy of an ECR plasma - Indication for evaporative cooling",
abstract = "We have used an X-ray CCD camera in single photon counting mode and a pinhole to obtain spatially and spectrally resolved images of the plasma of an electron cyclotron resonance ion source. Software based on the CERN ROOT package was developed to process and analyse the data. Comparison of plasma images from trapped xenon to that from a xenon-argon mixture provides evidence for evaporative cooling of the ion cloud in ECR ion sources. This results in more localised and highly charged ion clouds when lighter-mass argon gas is added to a heavy-ion xenon plasma. This observation can have implications on the thermodynamics and charge state balance in astrophysical and other laboratory plasmas.",
keywords = "ECR plasma, Evaporative cooling, Highly charged ions, Spectroscopic imaging, X-ray spectroscopy",
author = "E. Tak{\'a}cs and B. Radics and Szab{\'o}, {C. I.} and S. Biri and Hudson, {L. T.} and J. Imrek and B. Juh{\'a}sz and T. Suta and A. Valek and J. P{\'a}link{\'a}s",
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TY - JOUR

T1 - Spatially resolved X-ray spectroscopy of an ECR plasma - Indication for evaporative cooling

AU - Takács, E.

AU - Radics, B.

AU - Szabó, C. I.

AU - Biri, S.

AU - Hudson, L. T.

AU - Imrek, J.

AU - Juhász, B.

AU - Suta, T.

AU - Valek, A.

AU - Pálinkás, J.

PY - 2005/7

Y1 - 2005/7

N2 - We have used an X-ray CCD camera in single photon counting mode and a pinhole to obtain spatially and spectrally resolved images of the plasma of an electron cyclotron resonance ion source. Software based on the CERN ROOT package was developed to process and analyse the data. Comparison of plasma images from trapped xenon to that from a xenon-argon mixture provides evidence for evaporative cooling of the ion cloud in ECR ion sources. This results in more localised and highly charged ion clouds when lighter-mass argon gas is added to a heavy-ion xenon plasma. This observation can have implications on the thermodynamics and charge state balance in astrophysical and other laboratory plasmas.

AB - We have used an X-ray CCD camera in single photon counting mode and a pinhole to obtain spatially and spectrally resolved images of the plasma of an electron cyclotron resonance ion source. Software based on the CERN ROOT package was developed to process and analyse the data. Comparison of plasma images from trapped xenon to that from a xenon-argon mixture provides evidence for evaporative cooling of the ion cloud in ECR ion sources. This results in more localised and highly charged ion clouds when lighter-mass argon gas is added to a heavy-ion xenon plasma. This observation can have implications on the thermodynamics and charge state balance in astrophysical and other laboratory plasmas.

KW - ECR plasma

KW - Evaporative cooling

KW - Highly charged ions

KW - Spectroscopic imaging

KW - X-ray spectroscopy

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DO - 10.1016/j.nimb.2005.03.157

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VL - 235

SP - 120

EP - 125

JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

SN - 0168-583X

IS - 1-4

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