标题： 皮埃尔奥格观测站升级 - 初步设计报告 显示英文标题

标题： The Pierre Auger Observatory Upgrade - Preliminary Design Report

摘要： 皮埃尔·奥热观测站已经开始对其已经令人印象深刻的性能进行重大升级，重点是使用观测站的地面探测器改进质量组成测定。 称为奥热Prime的升级将包括在所有1660个水切连科夫探测器顶部新增4米$^2$塑料闪烁探测器，更新且更灵活的地面探测器电子设备，一个大型埋地缪子探测器阵列，以及荧光探测器运行的扩展工作周期。 这份初步设计报告由合作组于2015年4月作为内部文件和资助机构的信息发布。 它概述了奥热Prime的科学和技术依据。 我们现在通过arXiv服务器将其公开发布。 我们邀请您审阅观测站已经取得的大量基本成果以及我们的未来计划。 显示英文摘要

摘要： The Pierre Auger Observatory has begun a major Upgrade of its already impressive capabilities, with an emphasis on improved mass composition determination using the surface detectors of the Observatory. Known as AugerPrime, the upgrade will include new 4 m$^2$ plastic scintillator detectors on top of all 1660 water-Cherenkov detectors, updated and more flexible surface detector electronics, a large array of buried muon detectors, and an extended duty cycle for operations of the fluorescence detectors. This Preliminary Design Report was produced by the Collaboration in April 2015 as an internal document and information for funding agencies. It outlines the scientific and technical case for AugerPrime. We now release it to the public via the arXiv server. We invite you to review the large number of fundamental results already achieved by the Observatory and our plans for the future.