Development of online event selection program for the fluorescence detector of the Telescope Array experiment

望远镜阵列实验荧光探测器在线事件选择程序的开发

• 批准号: 24740153
• 负责人: TOKUNO Hisao
• 金额: $ 2.16万
• 依托单位: Tokyo Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2012
• 资助国家: 日本
• 起止时间: 2012-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-24740153/
• 关键词: 宇宙線; 最高エネルギー宇宙線; 大気蛍光望遠鏡; 空気シャワー; 荷電粒子宇宙線; 大気蛍光; Xmax

Air fluorescence detectors are employed to observe ultra high energy cosmic rays in the Telescope Array experiment. To reconstruct minimum signals with the primary energy less than 10**18 eV, arrival time information of air shower particles on the ground recorded by the surface detectors is useful for event reconstruction of the air fluorescence detectors.An external trigger (from air fluorescence detector to surface detector) was installed to obtain lower energy events of surface detector effectively. We studied this external trigger to improve its performance. The observed events which were obtained with the external trigger are studied. The preliminary energy spectrum of cosmic rays with the primary energy of 10**17.7 to 10**18.3 eV is observed.

在望远镜阵列实验中，空气荧光探测器被用来观测超高能宇宙线。为了重建初级能量小于10**18 eV的最小信号，地面探测器记录的空气簇射粒子到达地面的时间信息有助于空气荧光探测器的事件重建，为了有效地获得地面探测器的低能量事件，安装了外部触发器(从空气荧光探测器到地面探测器)。我们对这种外触发器进行了研究，以提高其性能。研究了用外触发器获得的观测事件。观测到了初级能量为10~17.7 eV~10~18.3 eV的宇宙线的初步能谱。

项目成果

TA実験240 : 大気蛍光望遠鏡ハイブリッドトリガ事象の解析

TA实验240：大气荧光望远镜混合触发事件分析

• 发表时间: 2014
• 作者: Watanabe;Y;松田さゆり;Takaaki Sato;Haruo Kasai;(a)得能久生
• 通讯作者: (a)得能久生