基于n-Xyter ASIC的FAIR设施Super-FRS GEM-TPC原型开发
Super-FRS GEM-TPC Prototype Development Based on n-Xyter Asic for the FAIR Facility
摘要：
FAIR设施是一个研究离子和反质子束的国际加速器中心。它正在德国达姆施塔特建造，作为目前GSI研究所的扩展。该设施的一个主要部分将是Super-FRS分离器，该分离器将包括在项目建设的第一阶段。NUSTAR实验将受益于Super-FRS，它将提供前所未有的放射性离子束（RIB）范围。这些实验将在三个不同的分支中使用不同能量和特性的束流;高能量利用在生产过程中产生的相对论能量为300-1500 MeV /u的RIB，低能量分支旨在使用0-150 MeV/u范围内的束流，而环分支将冷却并在NESR环中存储束流。Super-FRS束流诊断室的主要任务是设置和调整分离器，以及提供跟踪和逐事件粒子识别。赫尔辛基物理研究所、夸美纽斯大学和GSI的探测器实验室和实验电子学正处于GEM-TPC探测器的联合研发阶段，该探测器可以满足这种诊断和跟踪室在跟踪效率、空间分辨率、计数率能力和动量分辨率方面的要求。将展示第一个原型的当前状态和使用安装在GEMEX卡上的n-Xyter芯片的测试光束活动S417的初步结果。
英文摘要：
The FAIR facility is an international accelerator centre for research with ion and antiproton beams. It is being built at Darmstadt, Germany as an extension to the current GSI research institute. One major part of the facility will be the Super-FRS separator, which will be include in phase one of the project construction. The NUSTAR experiments will benefit from the Super-FRS, which will deliver an unprecedented range of radioactive ion beams (RIB). These experiments will use beams of different energies and characteristics in three different branches; the high-energy which utilizes the RIB at relativistic energies 300-1500 MeV /u as created in the production process, the low energy branch aims to use beams in the range of 0-150 MeV/u whereas the ring branch will cool and store beams in the NESR ring. The main tasks for the Super-FRS beam diagnostics chambers will be for the set up and adjustment of the separator as well as to provide tracking and event-by-event particle identification. The Helsinki Institute of Physics, the Comenius University, and the Detector Laboratory and Experimental electronics at GSI are in a joint R&D phase of a GEM-TPC detector which could satisfy the requirements of such diagnostics and tracking chambers in terms of tracking efficiency, space resolution, count rate capability and momenta resolution. The current status of the first prototype and the preliminary results from the test beam campaign S417 using the n-Xyter chips mounted on GEMEX cards will be shown.
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