Laser induced fluorescence study of Xe(5p56p, 5p56p′, 5p57p, and 5p56d) states in Ne and Ar: Radiative lifetimes and collisional deactivation rate constants

Laser induced fluorescence study of Xe(5p56p, 5p56p′, 5p57p, and 5p56d) states in Ne and Ar: Radiative lifetimes and collisional deactivation rate constants
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Ne 和 Ar 中 Xe(5p56p、5p56p、5p57p 和 5p56d) 态的激光诱导荧光研究:辐射寿命和碰撞失活速率常数

DOI:
10.1063/1.447628
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发表时间:
1984
影响因子:
4.4
通讯作者:
D. Setser
D. Setser
中科院分区:
化学2区
文献类型:
--
作者:
G. Inoue;J. Ku;D. Setser

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在脉冲放电的余辉中,通过单光子或双光子激光诱导荧光研究了Ne和Ar对所有6p,6p′,7 p和6d态的辐射寿命和碰撞失活常数,除了两个,[主要符号表示Xe+(2 P1/2)核心而不是Xe+(2 P3/2)核心]。6p和6p′态的辐射寿命为30-48 ns,7 p态的辐射寿命为68-172 ns,与理论值符合较好,而6d态的辐射寿命与理论值的符合较差. Ne和Ar的碰撞失活常数是相似的,如果附近有一个产品的水平。然而,由Ar的失活常数远大于Ne,如果有一个大的能量亏损的产品状态。的产品分布也进行了测量; Ar碰撞产生的产品具有更大的能量亏损比与Ne的碰撞,这往往有利于近等能的产品状态。产品通道的数量和类型与通道内交叉口的位置有关。
The radiative lifetimes and the collisional deactivation constants by Ne and Ar for all 6p, 6p′, 7p, and 6d states of Xe, except two, were studied by single or two‐photon laser induced fluorescence in the afterglow of a pulsed discharge [the prime symbol denotes the Xe+(2P1/2) core rather than the Xe+(2P3/2) core]. The radiative lifetimes, 30–48 ns for 6p and 6p′ states and 68–172 ns for 7p states, agree well with theoretical values; but, the agreement between experiment and theory is less satisfactory for the 6d states. The collisional deactivation constants for Ne and Ar are similar if there is a nearby product level. However, the deactivation constants by Ar are much larger than for Ne, if there is a large energy defect for the product state. The product distributions also were measured; Ar collisions give products with larger energy defect than collisions with Ne, which tend to favor nearly isoenergetic product states. The number and type of product channels are related to the locations of crossings i...