The Regener-Pfotzer Maximum During a Total Solar Eclipse

Journal of High Altitude Ballooning Pub Date : 2017-10-27 DOI:10.31274/ahac.2

A. Swanson, Alynie Xiong, E. Agrimson, G. Mcintosh, Kaye Smith, Liam C. Taylor

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Abstract

The Regener-Pfotzer (RP) maximum is the altitude at which cosmic radiation intensity is the greatest. A decrease of the altitude of the interaction layer, assumed to be measured by the RP maximum, has been suggested to account for a reduction in the secondary cosmic ray flux measured at the surface of the Earth during a total solar eclipse. To investigate this suggestion, high altitude cosmic radiation was measured using Geiger Mueller (GM) counters carried beneath weather balloons both before and during the total solar eclipse on 21 August 2017. The 19 and 20 August 2017 omnidirectional RP maxima occurred at an average altitude of 20.2 km ± 0.9 km. During the eclipse of 21 August 2017 the omnidirectional RP maxima occurred at an altitude of 20.4 km ± 0.8 km. The 19 and 20 August 2017 vertical coincidence RP maxima occurred at an altitude of 18.3 km ± 1.0 km. During the eclipse the vertical coincidence RP maxima occurred at 18.0 km ± 1.0 km. Our results do not show any decrease in the altitude of either the omnidirectional or the vertical coincidence RP maximum outside the range of our measurements before the eclipse.

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日全食期间的再生光泽度最大值

再生-普适(RP)最大值是指宇宙辐射强度最大的高度。相互作用层高度的降低，假定是用RP最大值来测量的，有人认为这可以解释日全食期间在地球表面测量到的次级宇宙射线通量的减少。为了调查这一说法，在2017年8月21日日全食之前和期间，使用气象气球下的盖格穆勒(GM)计数器测量了高空宇宙辐射。2017年8月19日和20日全向RP最大值发生在平均海拔20.2 km±0.9 km处。在2017年8月21日的日食期间，全方位RP最大值发生在海拔20.4公里±0.8公里处。2017年8月19日和20日垂直重合RP最大值发生在18.3 km±1.0 km高度。在日食期间，垂直重合RP最大值出现在18.0 km±1.0 km处。我们的结果显示，在日食之前，在我们的测量范围之外，全向或垂直重合RP最大值的高度没有任何下降。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Journal of High Altitude Ballooning

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