Relative abundances of cosmic ray nuclei B-C-N-O in the energy region from 10 GeV/n to 300 GeV/n. Results from ATIC-2 (the science flight of ATIC)
Relative abundances of cosmic ray nuclei B-C-N-O in the energy region from 10 GeV/n to 300 GeV/n. Results from ATIC-2 (the science flight of ATIC)
复制标题
宇宙射线核 B-C-N-O 在 10 GeV/n 至 300 GeV/n 能量区域的相对丰度。
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发表时间：
2007-07
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ATIC球载实验测量了从100 GeV到100 TeV的初级宇宙射线中从H到Fe的元素的能谱。ATIC是由一个完全活跃的锗酸铋量热计，嵌入闪烁体hodoscope碳目标，和硅矩阵，被用作主要的电荷检测器。硅矩阵产生良好的质子和氦的电荷分辨率，但只有部分较重的原子核的分辨率。在本文中，ATIC的电荷分辨率提高，并减少了从Be到Si的区域内的背景，通过使用闪烁体hodoscope的上层作为一个额外的电荷探测器。给出了从10 GeV/核子到300 GeV/核子能区的B/C、C/O、N/O通量比，并与已有的理论预言进行了比较。
The ATIC balloon-borne experiment measures the energy spectra of elements from H to Fe in primary cosmic rays from about 100 GeV to 100 TeV. ATIC is comprised of a fully active bismuth germanate calorimeter, a carbon target with embedded scintillator hodoscopes, and a silicon matrix that is used as the main charge detector. The silicon matrix produces good charge resolution for protons and helium but only partial resolution for heavier nuclei. In the present paper, the charge resolution of ATIC was improved and backgrounds were reduced in the region from Be to Si by using the upper layer of the scintillator hodoscope as an additional charge detector. The flux ratios of nuclei B/C, C/O, N/O in the energy region from about 10 GeV/nucleon to 300 GeV/nucleon obtained from this high-resolution, high-quality charge spectra are presented, and compared with existing theoretical predictions.
DOI：
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发表时间：
2003-06
期刊：
arXiv: High Energy Physics - Phenomenology
影响因子：
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作者：
A. Fassò;A. Ferrari;S. Roesler;P. Sala;F. Ballarini;A. Ottolenghi;G. Battistoni;F. Cerutti;E. Gadioli;M. Garzelli;A. Empl;J. Ranft
通讯作者：
A. Fassò;A. Ferrari;S. Roesler;P. Sala;F. Ballarini;A. Ottolenghi;G. Battistoni;F. Cerutti;E. Gadioli;M. Garzelli;A. Empl;J. Ranft