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首页> 外文期刊>ECS Journal of Solid State Science and Technology >Analysis of Sonoluminescence Signal from Megasonic Irradiated Gas-Containing Aqueous Solutions Using Replaceable Single-Band Filters
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Analysis of Sonoluminescence Signal from Megasonic Irradiated Gas-Containing Aqueous Solutions Using Replaceable Single-Band Filters

机译：使用可更换单频带滤光片分析兆声辐射含气水溶液中的声致发光信号

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摘要

A simple method to resolve the features that are characteristic of hydroxyl radicals in sonoluminescence (SL) spectra from aqueous solutions has been developed. Using a modified version of cavitation threshold (CT) cell in which single band filters were sandwiched between the UV grade fused silica window and the photomultiplier tube (PMT) in the cell, photon emission in the wavelength range of 280 to 400 nm was measured. Four different single band filters, 280-305.5 nm, 300-340 nm, 335-375 nm and 374.5-397.5 nm were used. The results for air and Ar saturated DI water are consistent with those reported in the literature and obtained using expensive spectrometers. The SL signal collected in ammonium hydroxide solutions indicated that at higher power densities the signal intensity may not be relatable to the generation rate of hydroxyl radicals in their ground state.
机译：已经开发出一种简单的方法来解决水溶液中声致发光（SL）光谱中的羟基自由基的特征。使用气穴阈值（CT）电池的改进版本，其中单带滤光片夹在该电池中的UV级熔融石英窗口和光电倍增管（PMT）之间，测量了280至400 nm波长范围内的光子发射。使用了四个不同的单波段滤光片，分别为280-305.5 nm，300-340 nm，335-375 nm和374.5-397.5 nm。空气和Ar饱和去离子水的结果与文献报道的结果一致，并且使用昂贵的光谱仪获得。在氢氧化铵溶液中收集的SL信号表明，在较高功率密度下，信号强度可能与基态羟基自由基的生成速率无关。

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