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arXiv 1209.2028astro-ph.IMastro-ph.HE
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确定空间gamma-ray方向的一种方法

A method for determination of gamma-ray direction in space

S. Akkoyun

摘要:

伽马射线暴(GRB)是来自空间任意方向的短而强的伽玛射线暴。它们的起源仍然是未知的,它们可能来自宇宙学距离,可能是在一个新的黑洞诞生或巨星死亡之后。在这项工作中,Geant模拟的探测器阵列,其目的是确定伽马射线在空间中的方向进行了研究,并开发了一种方法,这种识别。该阵列由三个面向不同方向的二次NaI(Tl)探测器组成,该方法是基于这三个探测器中记录的计数的差异。用这种方法得到的γ射线方向精度可达10 °。这种可以扫描空间三维的阵列形式对于确定伽玛暴的起源至关重要。该阵列还可应用于需要识别伽马射线方向的各种领域。

英文摘要:

Gamma-ray bursts (GRBs) are short and most intense bursts of gamma-rays that come from random direction in space. Their origin are still unknown and they originate likely from cosmological distances, probably after birth of a new black hole or death of a giant star. In this work, Geant simulations of a detector array whose aim is to identify gamma-ray directions in space were performed and a method for this identification was developed. The array consists of three quadratic NaI(Tl) scintillators which are facing different directions and the method is based on the difference of the counts registered in these three detectors. By using the method the gamma-ray directions are obtained with 10o accuracy. This form of the array which can scan three dimensions in space is crucial to pinpoint origin of the GRBs. The array would also be applicable in various fields where identifications of the gamma-ray directions are necessary.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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