On the absolute value of the air-fluorescence yield
On the absolute value of the air-fluorescence yield
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关于空气荧光产率的绝对值
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
F. Martínez
中科院分区：
文献类型：
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作者：
Jaime Rosado Vélez;F. Ramos;F. Martínez
空气荧光产量的绝对值是荧光望远镜记录的大范围空气簇射能量重建的关键参数。在之前的出版物中，我们报道了空气荧光产生的详细蒙特卡罗模拟，允许对该参数进行理论评估。该模拟在目前的工作中已得到升级。结果，我们在 800 hPa、293 K 的干燥空气中确定了 337 nm 波段荧光产率的更新绝对值为 7.9 +/- 2.0 ph/MeV，与实验值一致。我们还在模拟的帮助下对荧光产量的可用绝对测量值进行了批判性分析。已对一些测量进行了修正，以解决能量沉积评估中的偏差。还讨论了其他实验方面可能产生的影响。根据该分析，我们确定在上述条件下的平均荧光产量为 7.04 +/- 0.24 ph/MeV。 (C) 2014 Elsevier B.V. 保留所有权利。
The absolute value of the air-fluorescence yield is a key parameter for the energy reconstruction of extensive air showers registered by fluorescence telescopes. In previous publications, we reported a detailed Monte Carlo simulation of the air-fluorescence generation that allowed the theoretical evaluation of this parameter. This simulation has been upgraded in the present work. As a result, we determined an updated absolute value of the fluorescence yield of 7.9 +/- 2.0 ph/MeV for the band at 337 nm in dry air at 800 hPa and 293 K, in agreement with experimental values. We have also performed a critical analysis of available absolute measurements of the fluorescence yield with the assistance of our simulation. Corrections have been applied to some measurements to account for a bias in the evaluation of the energy deposition. Possible effects of other experimental aspects have also been discussed. From this analysis, we determined an average fluorescence yield of 7.04 +/- 0.24 ph/MeV at the above conditions. (C) 2014 Elsevier B.V. All rights reserved.