In this study, the recurrent fluorescence of naphthalene ions was investigated using an electrostatic ion beam trap. The number of photons from the recurrent fluorescence on the D$_{2} $ D${}_0$ transition was measured as a function of time, after the production of naphthalene ions by electron impact. The emission of photons was observed over a time range of approximately 10 ms. The variation in the number of photons for such a long time range could be explained by conducting simulations using previously reported theoretical rate constants of both the fragmentation and the recurrent fluorescence of vibrationally hot naphthalene ions.

中文翻译：

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直接测量萘离子的循环荧光发射

在这项研究中，使用静电离子束阱研究了萘离子的循环荧光。D $ _ {2} $ D上来自重复荧光的光子数${}_0$在通过电子撞击产生萘离子之后，将转变作为时间的函数进行测量。在大约10 ms的时间范围内观察到光子的发射。在如此长的时间范围内，光子数量的变化可以通过使用先前报道的振动热萘离子的碎片化和循环荧光的理论速率常数进行模拟来解释。