High-current hollow-cathode source as a radiant intensity standard in the 40-125-nm wavelength range.
High-current hollow-cathode source as a radiant intensity standard in the 40-125-nm wavelength range.
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高电流空心阴极源作为 40-125 nm 波长范围内的辐射强度标准。
DOI：
10.1364/ao.33.000068
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发表时间：
1994
期刊：
影响因子：
1.9
通讯作者：
B. Wende
中科院分区：
文献类型：
--
作者：
J. Hollandt;M. Kuhne;B. Wende
在40-125 nm光谱范围内，测定了大电流空心阴极真空紫外辐射线的辐射强度。该源以1 A的恒定电流工作，铝阴极。不同的稀有气体交替地用作压力为~100 Pa的缓冲气体。通过与电子储存环BESSY的计算光谱辐射通量的比较，确定了辐射强度。发射线的辐射强度在7-1400-µW/sr范围内。光源辐射强度的长期重现性在±10%（2σ值）以内。辐射定标的系统不确定度优于9%（σ = 32）。
The radiant intensity of VUV emission lines of a high-current hollow-cathode source has been determined for the 40-125-nm spectral range. The source is operated at a constant current of 1 A with an aluminum cathode. Different rare gases are alternatively used as the buffer gas at pressures of ~100 Pa. The radiant intensity has been determined by comparison with the calculable spectral radiant flux of the electron storage ring BESSY. Radiant intensities of the emission lines are in the 7-1400-µW/sr range. The long-term reproducibility of the radiant intensity of the source is within ±10% (2σ value). The systematic uncertainty of the radiometric calibration is better than 9% (√32σ value).