Relationship between Ba atom emission and electrode temperature in a low-pressure fluorescent lamp

Yukihiko Yamagata, Makoto Kai, Sho Naito, Kentaro Tomita, Kiichiro Uchino, Yoshio Manabe

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

A relationship between emission characteristics of Ba atom as an emitter material and temperature distributions of an electrode in a fluorescent lamp is described, which is measured by using laser-induced fluorescence and black-body radiation method, respectively. In a virgin lamp, a hot spot observed at the electrode edge connected to the power supply is the main source of Ba atom emission. In a long-term-used lamp, it is shown that Ba atom emission, thermionic electron emission in cathode half-cycle and electron collection in anode half-cycle are most active on the hot spot appearing on the center of the electrode.

Original languageEnglish
Pages (from-to)3449-3452
Number of pages4
JournalThin Solid Films
Volume518
Issue number13
DOIs
Publication statusPublished - Apr 30 2010

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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