基于LMRPC技术的高时间分辨宇宙线测试平台研制

To develop the experimental platform of cosmic rays base on the high time resolution LMRPC technology, which combines the particle detector in advanced technologies of space and time measurements. It has a high time resolution and two-dimensional spatial resolution, to make one is simple and characteristic. The experimental setup can be widely used the performance testing for various types of particle detectors by minimum ionizing particles in general laboratory environment, and be used as the test beam telescope in variety of beam line of accelerator, also be combined more than one LMRPC devices to be expanded into a multi-directional telescope of cosmic rays in ground and space observations. Due to our research on the advantages of LMRPC technology, it is not only can develop into a high-resolution devices of particle detection on the intellectual property rights, and will effectively enhance the innovation capability in particle detection technology for the country.

基于LMRPC技术的高时间分辨宇宙线测试平台研制,综合了目前粒子探测器在空间和时间测量中先进技术和方法.在满足高时间分辨测量要求的同时，又具有两维空间分辨能力，使得基于LMRPC技术搭建宇宙线望远镜及测试平台简便而具特色。它可以广泛用于一般实验室环境下各类粒子探测器(对最小电离粒子)的性能测试；可以作为各种加速器测试束流望远镜；也可以联合多台LMRPC测量装置，扩展成为多方位宇宙线观测望远镜,用于地面和空间宇宙线观测。依据我们在LMRPC研发方面的技术优势,它不仅可以开发成为一种具有自主知识产权的高分辨粒子探测装置，而且将有效提升我国在粒子探测技术方面的创新能力.

利用高能宇宙线粒子对研制的粒子探测器性能进行测试是实验室条件下最方便有效的手段。基于LMRPC(Long－strips Muilt-gap Resistance Plane Chamber )的高时间分辨宇宙线测试平台研制,综合了MRPC技术优点,不仅能满足高时间分辨测量要求，而且又具有大面积和位置分辨能力,可广泛应用于核与粒子物理实验及相关领域的探测器性能研究.. 我们研究结果显示,采用适当构型LMRPC搭建的宇宙测试平台,对宇宙线Muon探测性能达到：平均时间分辨可达到60ps，探测效率>95%，位置分辨<10mm. 允许最大计数率0.5kHz, 具有数据自动获取能力和长期稳定性。解决了在实验室环境下，研制高分辨宇宙线测试平台所配套探测技术和实验方法问题。研制的实验平台已应用于有关科研和教学中，获得多方面研究成果。

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