Publication detail

Influence of Metal Traces on Kinetics of a Nitrogen Glow Discharge in Post-Discharge Period

KANICKÝ, V. OTRUBA, V. HRDLIČKA, A. KRÁSENSKÝ, P. KRČMA, F.

Original Title

Influence of Metal Traces on Kinetics of a Nitrogen Glow Discharge in Post-Discharge Period

English Title

Influence of Metal Traces on Kinetics of a Nitrogen Glow Discharge in Post-Discharge Period

Type

journal article - other

Language

en

Original Abstract

The DC flowing post-discharge in nitrogen containing mercury traces of about 3.14 ppb was studied in Pyrex tube by emission spectroscopy. The relative populations of N_2 (B ^3 Pi_g), N_2 (C ^3 Pi_u) and N_2^+ (B ^2 Sigma_u^+) states were calculated in the dependence on the post-discharge time in the range of 3 - 40 ms. As the uncontrolled oxygen traces were recorded in the mercury flow the experiment with nitrogen-oxygen mixture was added. The results showed strong quenching of the nitrogen pink afterglow by mercury traces. The kinetic explanation should be done through strong depopulation of level N_2 (X ^1 Sigma_g^+,v = 20) (creation of mercury ^3 P_1 state) and levels N_2 (X ^1 Sigma_g^+, v = 28) or N_2 (A ^3 Sigma_u^+,v = 4) (creation of mercury ^1 S_0 state). Both mercury states are origins of UV light emission (254, resp. 185 nm) that could not be detected in our experimental set up.

English abstract

The DC flowing post-discharge in nitrogen containing mercury traces of about 3.14 ppb was studied in Pyrex tube by emission spectroscopy. The relative populations of N_2 (B ^3 Pi_g), N_2 (C ^3 Pi_u) and N_2^+ (B ^2 Sigma_u^+) states were calculated in the dependence on the post-discharge time in the range of 3 - 40 ms. As the uncontrolled oxygen traces were recorded in the mercury flow the experiment with nitrogen-oxygen mixture was added. The results showed strong quenching of the nitrogen pink afterglow by mercury traces. The kinetic explanation should be done through strong depopulation of level N_2 (X ^1 Sigma_g^+,v = 20) (creation of mercury ^3 P_1 state) and levels N_2 (X ^1 Sigma_g^+, v = 28) or N_2 (A ^3 Sigma_u^+,v = 4) (creation of mercury ^1 S_0 state). Both mercury states are origins of UV light emission (254, resp. 185 nm) that could not be detected in our experimental set up.

Keywords

nitrogen post-discharge, pink afterglow, post-discharge kinetics, optical spectroscopy, mercury traces

RIV year

2006

Released

27.11.2006

Publisher

ICP Information Newsletter, Inc.

Location

Amherst, USA

Pages from

159

Pages to

160

Pages count

2

BibTex


@article{BUT43653,
  author="Viktor {Kanický} and Vítězslav {Otruba} and Aleš {Hrdlička} and Pavel {Krásenský} and František {Krčma}",
  title="Influence of Metal Traces on Kinetics of a Nitrogen Glow Discharge in Post-Discharge Period",
  annote="The DC flowing post-discharge in nitrogen containing mercury traces of about 3.14 ppb was studied in Pyrex tube by emission spectroscopy. The relative populations of N_2 (B ^3 Pi_g), N_2 (C ^3 Pi_u) and N_2^+ (B ^2 Sigma_u^+) states were calculated in the dependence on the post-discharge time in the range of  3 - 40 ms. As the  uncontrolled oxygen traces were recorded in the mercury flow the experiment with nitrogen-oxygen mixture was added. The results showed strong quenching of the nitrogen pink afterglow by mercury traces. The kinetic explanation should be done through strong depopulation of level N_2 (X ^1 Sigma_g^+,v = 20) (creation of mercury ^3 P_1 state) and levels N_2 (X ^1 Sigma_g^+, v = 28) or N_2 (A ^3 Sigma_u^+,v = 4) (creation of mercury ^1 S_0 state). Both mercury states are origins of UV light emission (254, resp. 185 nm) that could not be detected in our experimental set up.",
  address="ICP Information Newsletter, Inc.",
  chapter="43653",
  institution="ICP Information Newsletter, Inc.",
  journal="ICP Information Newsletter",
  number="6S",
  volume="32",
  year="2006",
  month="november",
  pages="159--160",
  publisher="ICP Information Newsletter, Inc.",
  type="journal article - other"
}