Data on radiocarbon 14C generation in the atmosphere under thunderstorms

It was realized simulation of radiocarbon 14C creation in the atmosphere at thunderstorm conditions for the altitudes up to 15 km above the sea level. The simulation was done by means the proposed gross model which takes into account the rate of 14C production depending on the part of energetic electrons in the flash discharge for different altitudes above the sea level. Basing on the nuclear data it was calculated the probability of 14C creation depending on the neutron energy at radiocarbon production.The results revealed that yield of thunderstorm mechanism to the total radiocarbon creation is very small compare to the main one – originated from the cosmic irradiation. The data on thunderstorm neutron flux which reaches the ground level are presented.

本研究实现了在大气中雷暴条件下，至海平面以上15公里高度范围内放射性碳-14C生成的模拟。该模拟采用所提出的粗略模型进行，该模型考虑了不同海平面以上高度范围内，闪络放电中能量电子部分对14C产生速率的影响。基于核数据，计算了根据中子能量在放射性碳产生时的14C生成概率。结果表明，与主要由宇宙辐射产生的总放射性碳生成量相比，雷暴机制对总放射性碳生成的贡献非常微小。同时，展示了达到地面水平的雷暴中子通量数据。