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首页> 外文期刊>International journal of modern physics, D. Gravitation, astrophysics, cosmology >Estimating primary energy of cosmic rays by calculating secondary particles density in optimum distance from shower core
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Estimating primary energy of cosmic rays by calculating secondary particles density in optimum distance from shower core

机译：通过在淋浴芯的最佳距离中计算二次粒子密度来估计宇宙射线的主要能量

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摘要

Optimum distance (R-opt) is a distance from the shower core in which the density calculated by lateral distribution function, has its minimum uncertainty. In this paper, using CORSIKA code, proton, carbon and iron primary in the energy range between 10(13) 3x10(15) eV are simulated to find R-opt for Alborz-I array located at an altitude of 1200 m above sea level. It is shown that Ropt is approximately independent of characteristics of primary particle and it is only dependent to array configuration. Dependency of R-opt on layout and detector spacing for 20 Alborz-I array detectors, are studied. It is shown that the Alborz-I array layout and its detector spacing result into the best (minimum uncertainty) R-opt for its number of detectors. In this work, R-opt for Alborz-I array is obtained about 10.18 +/- 1.25 m (from NKG function) and 9.07 +/- 0.96 m (from NKG type function). In addition, it is shown that, by finding dependency of primary energy to density in optimum distance, energy of primary particle can be estimated well. An energy estimation function is suggested and the function is examined by another set of simulated showers.
机译：最佳距离（R-opt）是距淋浴核的距离，其中通过横向分布函数计算的密度具有其最小不确定性。在本文中，模拟了在10（13）个3x10（15 )EV之间的能量范围内的质量核，质子，碳和铁初级，以查找位于海拔1200米的高度的Alborz-I阵列的R-Opt 。结果表明，Ropt大致独立于主粒子的特征，并且它仅取决于阵列配置。研究了R-opt对20alborz-i阵列探测器的布局和检测器间距的依赖性。结果表明，Alborz-I阵列布局及其检测器间距导致最佳（最小不确定性）R-opt opt的探测器。在这项工作中，获得Alborz-1阵列的R-opt获得约10.18 +/- 1.25米（来自NKG函数）和9.07 +/- 0.96 M（来自NKG型功能）。另外，示出了，通过在最佳距离中找到原发性能量的依赖性，可以估计初级粒子的能量。建议能量估计函数，通过另一组模拟淋浴检查该功能。

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