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氩等离子体紫外光A和B辐射属性计算

王飞, 李桓, CressaultYann, TeuletPhilippe, 杨珂

王飞, 李桓, CressaultYann, TeuletPhilippe, 杨珂. 氩等离子体紫外光A和B辐射属性计算[J]. 焊接学报, 2019, 40(7): 12-15. DOI: 10.12073/j.hjxb.2019400174
引用本文: 王飞, 李桓, CressaultYann, TeuletPhilippe, 杨珂. 氩等离子体紫外光A和B辐射属性计算[J]. 焊接学报, 2019, 40(7): 12-15. DOI: 10.12073/j.hjxb.2019400174
WANG Fei, LI Huan, Cressault Yann, Teulet Philippe, YANG Ke. Calculation of radiative properties for argon plasma in ultraviolet A and B[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(7): 12-15. DOI: 10.12073/j.hjxb.2019400174
Citation: WANG Fei, LI Huan, Cressault Yann, Teulet Philippe, YANG Ke. Calculation of radiative properties for argon plasma in ultraviolet A and B[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(7): 12-15. DOI: 10.12073/j.hjxb.2019400174

氩等离子体紫外光A和B辐射属性计算

基金项目: 国家自然科学基金项目(51675375)

Calculation of radiative properties for argon plasma in ultraviolet A and B

  • 摘要: 焊接等离子体释放的紫外光A (315~400 nm)和紫外光B (280~315 nm)是皮肤癌的重要诱因.基于净辐射系数的概念,考虑了连续谱(复合辐射和轫致辐射)和线谱等辐射机制,计算了氩等离子在常压、5 000~25 000 K内的紫外光A,B的辐射属性.结果表明,随着等离子体半径Rp增加,全谱辐射发生强烈的自吸收效应,而紫外光A,B基本无自吸收;当Rp=1 mm时,它们在总谱辐射(35~4 500 nm)的最大的占比分别为6.0%,1.9%,在非真空紫外辐射(200~4 500 nm)的最大的占比为36.3%和5%.为钨极氩弧的紫外光危害性研究提供了理论依据.
    Abstract: Exposure to ultraviolet A (315~400 nm) and B (280~315 nm) from welding arcs is an important risk factor for the development of skin cancer. Based on the concept of net emission coefficient, the radiative properties within the ultraviolet A and B ranges are calculated for argon plasma with a radius of Rp in the temperatures 5 000~25 000 K at atmospheric pressure. The various radiative mechanisms, including continuum (recombination and bremsstrahlung) and line radiation, are considered. It is concluded that although the self-absorption effect is prominent for the entire spectrum, it is very weak for the ultraviolet A and B. When Rp=1 mm, the ultraviolet A and B radiations account for at most of 6.0% and 1.9%, respectively. To the entire spectrum (35~4 500 nm) radiation, and account for at most of 36.5% and 5.0% to non-vacuum-ultraviolet (200~4 500 nm) radiation. This study establishes a theoretical basis for the study of the ultraviolet radiation posed by TIG arcs.
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出版历程
  • 收稿日期:  2018-02-02

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