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Interpretation of large ionization bursts observed at high altitudes in high pressure chambers under thick shields

机译：解释在厚屏蔽下高压室中在高海拔处观察到的大电离爆发

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NOTE: Text not renderable in plain ASCII is indicated by [...]. Abstract is included in .pdf document.ududAn attempt is made to explain the ionization bursts containing 400 - 1600 particles observed at high altitudes in high pressure chambers heavily shielded with lead, in terms of short-lived neutral mesons produced by primary protons colliding with shield nuclei; neutral mesons instantly decay into photons which initiate electron cascades in the shield resulting in an ionization burst inside the chamber. The primary interaction is treated by means of a simple model for multiple meson production which assumes constant cross section, complete inelasticity and constant multiplicity throughout the energy region [...] ev; 1/3 of the primary energy is assumed to go into neutral mesons.ududThe contribution of the soft component of high energy air showers is estimated and found to be negligible at all altitudes. An analysis of burst data obtained by Neher and Biehl at three altitudes (307 gm, 616 gm, 1030 gm) then shows that the majority of high altitude bursts can be explained by neutral mesons produced in the primary encounter; but not a negligible fraction must be attributed to secondary collisions. From the data of Neher-Biehl and Fahy mean free paths of 185 [plus or minus] 20 gm in air and 355 [plus or minus] 55 gm in lead are deduced.ud
机译：注意：用[...]表示无法以纯ASCII呈现的文本。 .pdf文件中包含摘要。 ud ud试图解释一次质子产生的短暂中性介子，该现象在高浓度铅严重屏蔽的高压室内高海拔观测到的包含400-1600个粒子的电离爆发与盾核碰撞；中性介子立即衰减成光子，从而在屏蔽层中引发电子级联，从而导致室内的电离爆发。 daccess-ods.un.org daccess-ods.un.org通过简单的多介子生产模型来处理一次相互作用，该模型假定在整个能量区域ev上具有恒定的横截面，完全的无弹性和恒定的多重性。假定有1/3的一次能量进入中性介子。 ud ud估计高能风淋的软成分在所有高度上都可以忽略不计。对Neher和Biehl在三个高度（307 gm，616 gm，1030 gm）获得的爆发数据进行的分析表明，大多数高海拔爆发可以由初次遭遇中产生的中子引起。但不可忽略的分数必须归因于二次碰撞。根据Neher-Biehl和Fahy的数据，推算出空气中的185 [正负] 20 gm和铅中的355 [正负] 55 gm的平均自由程。 ud

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    Inonu Erdal Ismet;

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  • 年度 1952
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