Pulse optimization criteria for the microcavity hollow cathode discharge emission source

Paul D. Mixon, Steven T. Griffin, James Williams, Xiangjun J. Cai, J. C. Williams

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Criteria are presented that are important for optimizing the emission intensity in a microcavity hollow cathode (MCHC) discharge source operated in the pulsed mode. The d.c. component must be sufficiently large to ensure a continuous discharge inside the HC. It is shown that the pulse parameters that result in maximum light output for the spectral lines of the cathode material do not result in maximum light output from sodium as an analytical sample which has been mounted inside the HC. This lack of correlation may be due to either the physical and chemical properties of the species or to the manner in which the species enters the HC discharge plasma. Voltage-current characteristics are presented for the MCHC to illustrate the role of the d.c. component during pulsed mode operation. The d.c. current of the discharge must be >5 mA in order to maintain a discharge in the HC. At currents <5 mA for this system the discharge is restricted to the planar surface of the cathode and will not participate in the excitation of analytes thrown into the hollow space during the pulse.

Original languageEnglish (US)
Pages (from-to)697-700
Number of pages4
JournalJournal of Analytical Atomic Spectrometry
Volume9
Issue number6
StatePublished - Dec 1 1994

Fingerprint

Microcavities
Cathodes
Current voltage characteristics
Chemical properties
Physical properties
Sodium
Plasmas

Keywords

  • Atomic emission spectrometry
  • Glow discharge
  • Hollow cathode discharge

ASJC Scopus subject areas

  • Analytical Chemistry
  • Spectroscopy

Cite this

Pulse optimization criteria for the microcavity hollow cathode discharge emission source. / Mixon, Paul D.; Griffin, Steven T.; Williams, James; Cai, Xiangjun J.; Williams, J. C.

In: Journal of Analytical Atomic Spectrometry, Vol. 9, No. 6, 01.12.1994, p. 697-700.

Research output: Contribution to journalArticle

Mixon, Paul D. ; Griffin, Steven T. ; Williams, James ; Cai, Xiangjun J. ; Williams, J. C. / Pulse optimization criteria for the microcavity hollow cathode discharge emission source. In: Journal of Analytical Atomic Spectrometry. 1994 ; Vol. 9, No. 6. pp. 697-700.
@article{4fb0b8d879094dceaa9fedecf63e3810,
title = "Pulse optimization criteria for the microcavity hollow cathode discharge emission source",
abstract = "Criteria are presented that are important for optimizing the emission intensity in a microcavity hollow cathode (MCHC) discharge source operated in the pulsed mode. The d.c. component must be sufficiently large to ensure a continuous discharge inside the HC. It is shown that the pulse parameters that result in maximum light output for the spectral lines of the cathode material do not result in maximum light output from sodium as an analytical sample which has been mounted inside the HC. This lack of correlation may be due to either the physical and chemical properties of the species or to the manner in which the species enters the HC discharge plasma. Voltage-current characteristics are presented for the MCHC to illustrate the role of the d.c. component during pulsed mode operation. The d.c. current of the discharge must be >5 mA in order to maintain a discharge in the HC. At currents <5 mA for this system the discharge is restricted to the planar surface of the cathode and will not participate in the excitation of analytes thrown into the hollow space during the pulse.",
keywords = "Atomic emission spectrometry, Glow discharge, Hollow cathode discharge",
author = "Mixon, {Paul D.} and Griffin, {Steven T.} and James Williams and Cai, {Xiangjun J.} and Williams, {J. C.}",
year = "1994",
month = "12",
day = "1",
language = "English (US)",
volume = "9",
pages = "697--700",
journal = "Journal of Analytical Atomic Spectrometry",
issn = "0267-9477",
publisher = "Royal Society of Chemistry",
number = "6",

}

TY - JOUR

T1 - Pulse optimization criteria for the microcavity hollow cathode discharge emission source

AU - Mixon, Paul D.

AU - Griffin, Steven T.

AU - Williams, James

AU - Cai, Xiangjun J.

AU - Williams, J. C.

PY - 1994/12/1

Y1 - 1994/12/1

N2 - Criteria are presented that are important for optimizing the emission intensity in a microcavity hollow cathode (MCHC) discharge source operated in the pulsed mode. The d.c. component must be sufficiently large to ensure a continuous discharge inside the HC. It is shown that the pulse parameters that result in maximum light output for the spectral lines of the cathode material do not result in maximum light output from sodium as an analytical sample which has been mounted inside the HC. This lack of correlation may be due to either the physical and chemical properties of the species or to the manner in which the species enters the HC discharge plasma. Voltage-current characteristics are presented for the MCHC to illustrate the role of the d.c. component during pulsed mode operation. The d.c. current of the discharge must be >5 mA in order to maintain a discharge in the HC. At currents <5 mA for this system the discharge is restricted to the planar surface of the cathode and will not participate in the excitation of analytes thrown into the hollow space during the pulse.

AB - Criteria are presented that are important for optimizing the emission intensity in a microcavity hollow cathode (MCHC) discharge source operated in the pulsed mode. The d.c. component must be sufficiently large to ensure a continuous discharge inside the HC. It is shown that the pulse parameters that result in maximum light output for the spectral lines of the cathode material do not result in maximum light output from sodium as an analytical sample which has been mounted inside the HC. This lack of correlation may be due to either the physical and chemical properties of the species or to the manner in which the species enters the HC discharge plasma. Voltage-current characteristics are presented for the MCHC to illustrate the role of the d.c. component during pulsed mode operation. The d.c. current of the discharge must be >5 mA in order to maintain a discharge in the HC. At currents <5 mA for this system the discharge is restricted to the planar surface of the cathode and will not participate in the excitation of analytes thrown into the hollow space during the pulse.

KW - Atomic emission spectrometry

KW - Glow discharge

KW - Hollow cathode discharge

UR - http://www.scopus.com/inward/record.url?scp=0028448691&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0028448691&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0028448691

VL - 9

SP - 697

EP - 700

JO - Journal of Analytical Atomic Spectrometry

JF - Journal of Analytical Atomic Spectrometry

SN - 0267-9477

IS - 6

ER -