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首页> 外文期刊>Chemical Physics Letters >THERMAL STATE DISTRIBUTIONS DEDUCED FROM (2+1) RESONANCE ENHANCED MULTIPHOTON IONIZATION OF CO
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THERMAL STATE DISTRIBUTIONS DEDUCED FROM (2+1) RESONANCE ENHANCED MULTIPHOTON IONIZATION OF CO

机译:由(2 + 1)共振增强Co的多光子电离引起的热态分布

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We have recently compared the (2 + 1) resonance enhanced multiphoton ionization spectra of neutral CO products desorbed from CaCO3 following pulsed UV excitation with those obtained from thermal (295 K) CO samples under similar low pressure and identical ionization conditions. As a result of this investigation, we have concluded that fitting the unresolved B-X (0-0) Q-band may lead to spurious temperature assignments with erroneous 'hotter' temperatures Delta T>60 K assigned for product state distributions. Conversely, partially resolved Doppler-limited spectra are found to allow temperature assignments to within 10 K. This discrepancy may arise from line strength perturbation phenomena. [References: 15]
机译:我们最近比较了在脉冲UV激发后从CaCO3解吸的中性CO产物的(2 +1)共振增强多光子电离光谱与在相似的低压和相同电离条件下从热(295 K)CO样品获得的中性CO产物的比较。这项研究的结果是,我们得出的结论是,拟合未解析的B-X(0-0)Q波段可能会导致错误的温度分配,而为产品状态分布分配的错误“较热”温度Delta T> 60K。相反,发现部分解析的多普勒限制谱允许温度分配在10 K以内。这种差异可能是由于线强度扰动现象引起的。 [参考:15]

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