江浩;韩秋漪;朱绍龙;张善端;
Jiang Hao Han Qiuyi Zhu Shaolong Zhang Shanduan(Institude for Electric Light Sources, Fudan University, Shanghai 200433)

• 1:复旦大学电光源研究所
• 2:复旦大学电光源研究所
• 3:复旦大学电光源研究所
• 4:复旦大学电光源研究所 上海200433

摘要(Abstract)：

Koedam β系数可用于计算低气压Ar-Hg放电正柱单位长度的谱线辐射功率,研究正柱的能量平衡,为各种荧光灯设计提供基本数据。设计制作了小型分布光度计,测量了外径10mm的T3低气压Ar-Hg放电管正柱表面直径1mm的圆形区域发出的254nm辐射在半空间内的相对辐亮度分布,然后计算出Koedam β系数。结果表明,放电管冷端温度为20℃,45℃,电流为50mA,100mA,150mA时,Koedam β系数值约为0.47⁰.52,比已知粗管径放电正柱的β系数小。
A Koedam β factor is useful in spectral line radiation power calculation and energy balance analysis for low pressure Ar-Hg discharge positive column that may help the design of fluorescent lamp. A small goniometer is designed and manufactured. Koedam β factor of 254 nm radiation in a T3 low pressure Ar-Hg discharge positive column with outer diameter 10 mm is calculated from the measured data of relative radiance distribution emitted by an aperture with diameter 1 mm rounded on the surface of the positive column. For operating condition of cold spot temperature 20℃, 45℃, and discharge current 50mA, 100mA, 150mA, the Koedam β factor of T3 is in the range of 0.47～0.52, which is smaller than that of thick tubes.

关键词(KeyWords)： 等离子体物理学;Koedam β系数;相对辐亮度分布;低气压Ar-Hg放电;细管径
plasma physics; Koedam β factor; relative radiance distribution; low pressure Ar-Hg discharge; small diameter

Abstract:

Keywords:

基金项目(Foundation):

作者(Authors): 江浩;韩秋漪;朱绍龙;张善端;
Jiang Hao Han Qiuyi Zhu Shaolong Zhang Shanduan(Institude for Electric Light Sources, Fudan University, Shanghai 200433)

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