• <tr id='oecx7P'><strong id='oecx7P'></strong><small id='oecx7P'></small><button id='oecx7P'></button><li id='oecx7P'><noscript id='oecx7P'><big id='oecx7P'></big><dt id='oecx7P'></dt></noscript></li></tr><ol id='oecx7P'><option id='oecx7P'><table id='oecx7P'><blockquote id='oecx7P'><tbody id='oecx7P'></tbody></blockquote></table></option></ol><u id='oecx7P'></u><kbd id='oecx7P'><kbd id='oecx7P'></kbd></kbd>

    <code id='oecx7P'><strong id='oecx7P'></strong></code>

    <fieldset id='oecx7P'></fieldset>
          <span id='oecx7P'></span>

              <ins id='oecx7P'></ins>
              <acronym id='oecx7P'><em id='oecx7P'></em><td id='oecx7P'><div id='oecx7P'></div></td></acronym><address id='oecx7P'><big id='oecx7P'><big id='oecx7P'></big><legend id='oecx7P'></legend></big></address>

              <i id='oecx7P'><div id='oecx7P'><ins id='oecx7P'></ins></div></i>
              <i id='oecx7P'></i>
            1. <dl id='oecx7P'></dl>
              1. <blockquote id='oecx7P'><q id='oecx7P'><noscript id='oecx7P'></noscript><dt id='oecx7P'></dt></q></blockquote><noframes id='oecx7P'><i id='oecx7P'></i>
                  您现在★的位置:首页 > 新闻动态 > 学术活动
                【1.8】Radiation damage studies in LHCb vertex detector
                2019-01-02|文章来源: |【

                Experimental Physics Division (EPD) seminar
                Title: Radiation damage studies in LHCb vertex detector
                Speaker: Dr.Shanzhen Chen (INFN-Cagliari)
                Time: 14:00,Tuesday 8th January 2019
                Location: C305 main building
                Indico: https://indico.ihep.ac.cn/event/9231/

                LHCb is a dedicated experiment to study New Physics in the decays of heavy hadrons at the Large Hadron Collider (LHC) at CERN. The LHCb detector includes a high precision tracking system consisting of a silicon-strip vertex detector (VELO) surrounding the pp interaction region, a large-area silicon-strip detector located upstream of a dipole magnet and three stations of silicon-strip detectors and straw drift tubes placed downstream of the magnet. Calorimeters, RICH and Muon detectors for particle identification complement the detector.
                The LHC has just finished its run-2 operation in December 2018, and the end of run-2 has seen the VELO detector soak up an incredible 10 fb-1 of luminosity during the past 10 years while continuing to operate at full efficiency. The extreme proximity (~8 mm) of the VELO sensors to the LHC beam renders the VELO an ideal laboratory to study the effects of radiation damage on silicon detectors. To ensure efficient operation, the radiation damage effects were studied closely with several methods. In this presentation, the studies of radiation damage effects, as well as the operational experience of VELO from LHC run-2, and the operational challenges for the silicon detectors in LHC run-2 will be discussed.

                About the speaker:
                Dr. Shanzhen Chen is a post-doctoral researcher from INFN, He obtained his PhD at the University of Manchester. His work includes CP violation searches in multi-body charm decays, production measurements in heavy ion collisions at LHCb, and LHCb vertex locator (VELO) radiation damage and data quality studies. He is the person responsible for VELO charge collection efficiency (CCE) scan and the related analyses, and he determined the run-2 operational voltages for each VELO sensor.

                中国★科学院高能物理研究所    备案序号:京ICP备05002790-1号    文保网安ω备案号:110402500050
                地址:北京市918信箱    邮编:100049    电话:86-10-88235008    Email:ihep@ihep.ac.cn