First Observations of Cosmic Ray Neutrons by a Mini Neutron Monitor at Riyadh, Saudi Arabia
First Observations of Cosmic Ray Neutrons by a Mini Neutron Monitor at Riyadh, Saudi Arabia
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沙特阿拉伯利雅得的迷你中子监测仪首次观测宇宙射线中子
DOI：
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Altilasi Mohammed
中科院分区：
文献类型：
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作者：
Maghrabi Abdullrahman;A. Abdulah;Altilasi Mohammed
2017年4月，在沙特阿拉伯中部的阿卜杜勒阿齐兹国王科技城（KACST）（利雅得;截止刚度，Rc = 14.4 Gv）安装了一个小型中子监测器（NM），用于连续观测宇宙射线（CR）中子。该探测器是作为空间研究中心（西北大学，南非波切夫斯特鲁姆）和KACST之间国际科学联合努力的一个主要方面而建造的。记录的数据对应于主要具有低于20 GeV的能量的低能中子。本文将对小型纳米探测器进行简要描述。研究了大气压力对CR中子记录的影响，计算了气压系数，并利用气压系数消除了测量数据中的压力影响。所获得的系数是一致的，与以前获得的一些研究者。研究和表征了CR中子的日变化。短期CR周期，如27天的周期，它的两个谐波，被确定。得到的周期与不同研究者报道的周期一致。从该探测器获得的结果已经与现有的1 m2闪烁体探测器进行了比较，显示出相当的结果。从这个探测器的长期数据将是令人难以置信的意义，研究界调查几种类型的CR变化所造成的太阳活动在这样的高截止刚度网站。
In April 2017, a mini neutron monitor (NM) was installed at King Abdulaziz City for Science and Technology (KACST) central Saudi Arabia (Riyadh; cut-off rigidity, Rc = 14.4 Gv) for continuous observation of the cosmic ray (CR) neutrons. The detector was built as a major aspect of the international scientific joint effort between the Centre of Space Research (North-West University, Potchefstroom, South Africa) and KACST. The recorded data correspond to low energy neutrons that primarily have energies lower than 20 GeV. In this paper, a brief description about the mini NM detector will be given. The influence of atmospheric pressure on the recorded CR neutrons was studied and the barometric coefficient was calculated and used to eliminate the pressure effects from the measured data. The obtained coefficient was consistent with those previously obtained by several investigators. The daily variation of the CR neutron was studied and characterized. Short-term CR periodicities, such as the 27-day period, and its two harmonics, were identified. The obtained periodicities are in agreement with those reported by different researchers. The obtained results from this detector have been compared to the existing 1 m2 scintillator detector showing comparable results. Long-term data from this detector will be of incredible significance to the research community to investigate several types of CR variations resulting from solar activity at such high cut off rigidity site.
最高能量宇宙射线与附近活动星系核位置的相关性
影响因子：
3.5
作者：
Abraham J
通讯作者：
Abraham J