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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Experimental determination of parameters for molecular continuum radiation of rare-earth iodides
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Experimental determination of parameters for molecular continuum radiation of rare-earth iodides

机译:稀土碘化物分子连续辐射参数的实验确定

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摘要

The molecular continuum radiation of high intensity discharges (HID) containing the rare-earth iodides TmI3, HoI3 and DyI3 in quartz burners have been investigated. For the case of TmI3 a more detailed analysis has been performed. Two main molecular emission contributions have been identified, being located in the arc core and in the mantle region. These molecular emissions turned out to deliver half of the total emission of this type of discharge. The mantle emission was identified as originating from the diatomic TmI. Two distinct upper energy levels at about 4 eV have been determined, being separated about 0.4 eV from each other. A pragmatic approach has been chosen to describe the spectral molecular emission coefficient as a sum of three Gaussian profiles. The proposed method allows one to take into consideration molecular emission for modelling of HID containing rare-earth iodides.
机译:研究了石英燃烧器中含有稀土碘化物TmI3,HoI3和DyI3的高强度放电(HID)的分子连续辐射。对于TmI3,已经进行了更详细的分析。已经确定了两个主要的分子发射贡献,分别位于弧芯和地幔区域。事实证明,这些分子排放物可提供此类放电总排放量的一半。地幔发射被确定为源自双原子TmI。已经确定了大约4 eV的两个不同的较高能级,它们彼此分开约0.4 eV。选择了一种实用的方法将光谱分子发射系数描述为三个高斯分布的总和。所提出的方法允许人们考虑分子发射,以对包含稀土碘化物的HID进行建模。

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