This work concerns an ultraviolet-A (UV-A) and UV-B emitting radiation unit. To this end, UV-A emitting light emitting diodes (LEDs) were combined with a Lu 3 Al 5 O 12 :Gd 3+ (LuAG:Gd) coated Xe excimer discharge lamp. Prior to the application, the single-phase phosphor was optimized w.r.t particle size distribution and reflection spectrum before the photoluminescence properties were recorded. It turned out that LuAG:Gd is an intense emitting material in the UV-B spectral range. Afterwards, a phosphor paint was made and applied with an up-flush technique to a fused silica tube to create a uniform coating. For the excimer lamp a high voltage pulse generator in flyback topology was developed which allows to adjust the UV-B output from 1% to 100% without affecting the lamp efficiency. To maximize the UV output power the pulse width, pulse amplitude as well as the duty cycle of lamp was tuned. At last the complete set up was measured in front of...

中文翻译：

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适用于UV-A和UV-B范围的新型辐射装置

这项工作涉及发射紫外线A（UV-A）和紫外线B的辐射单元。为此，将发射UV-A的发光二极管（LED）与涂有Lu 3 Al 5 O 12：Gd 3+（LuAG：Gd）的氙气准分子放电灯组合。在应用之前，在记录光致发光特性之前，对单相荧光粉进行了粒度分布和反射光谱优化。事实证明，LuAG：Gd是在UV-B光谱范围内的强发射材料。之后，制备了荧光粉涂料，并采用上冲技术将其涂在熔融石英管上，以形成均匀的涂层。对于准分子灯，开发了反激式拓扑结构的高压脉冲发生器，该发生器可以将UV-B输出从1％调整到100％，而不会影响灯效率。为了使紫外线输出功率最大化，脉冲宽度 调整了脉冲幅度以及灯的占空比。最后，在...前面测量了完整的设置。