Development and utilization of ''Plate Changer'' system for neutrino interaction locations in OPERA emulsion target
Development and utilization of ''Plate Changer'' system for neutrino interaction locations in OPERA emulsion target
复制标题
OPERA 乳剂靶中中微子相互作用位置“换板器”系统的开发和利用
DOI：
10.1088/1748-0221/8/02/p02009
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
J. Yoshida et al.,
中科院分区：
文献类型：
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作者：
J. Yoshida et al.,
在OPERA实验中，使用所谓的回扫方法来定位乳胶靶ECC中的中微子相互作用顶点。在回扫方法中，ECCS中最下游乳胶板中检测到的轨迹被逐板跟踪到上游，直到到达相互作用点。为了处理OPERA中记录的大量中微子相互作用，日本开发了一种名为平板换能器的专用系统，并用于中微子事件的定位。该系统的详细情况已在本报告中描述。截至2012年11月底，已使用该系统进行了6223次回扫试验，并为探测到tau中微子的出现做出了巨大贡献。
In the OPERA experiment, so-called Scan Back method is used to locate neutrino interaction vertices in the emulsion target named ECC (Emulsion Cloud Chamber). In Scan Back method, tracks detected in the most downstream emulsion plate in ECCs are followed to upstream plate by plate until it reaches to the interaction points. In order to treat a number of neutrino interactions recorded in OPERA, dedicated systems called Plate Changer has been developed and utilized to neutrino event location in Japan. The details of the system have been described in this report. Until the end of November 2012, 6223 Scan Back trials have been performed using this system, and strongly contributed to the detection of tau neutrino appearance.