Calculation of the Radiation Spectra for the High Pressure Sodium Arc

DOI Web Site Web Site 2 Citations

Bibliographic Information

Other Title
  • 高圧ナトリウムアークの放射スペクトルの計算
  • コウアツ ナトリウム アーク ノ ホウシャ スペクトル ノ ケイサン

Search this article

Description

Calculation of the radiation spectra of the high pressure sodium discharge arc was carried out by a simplified calculation procedure. The shape of the arc plasma temperature was assumed to be a parabola and the axis temperature was calculated from the potential gradient. The effective temperature was regarded as the average temperature, calculated from the temperature distribution, and the arc temperature distribution was approximated to be a two step model. The line shapes of both atomic and molecular spectra were assumed to be of an optically thick manner, and the absorption coefficient Kvwas assumed for each line. Adjustable factors for each Kv were determined by the measured profile. The standard high pressure sodium lamp's spectra were calculated by the simplified solution of the radiative transfer equation and a good agreement between the calculated and measured values for the lamp characteristics was obtained, especially for the average color rendering index Ra and the visual luminous efficacy.

Journal

Citations (2)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top