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Location:Home>SICCAS News>Events

SICCAS provided key detecting materials for LHC

Author: yudongmei1
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  The world’s biggest LHC (Large Hadron Collider) invested with nearly ten billion dollars was launched by  CERN September 10, which has opened the new era on human exploration in the matter world. More than 5 thousand Chinese Lead Tungstate crystals (PWO) were sent to CERN for the CMS detect (Compact Muon Solenoid), one of the four experiments of LHC. All of these crystals were developed and produced by SICCAS, which once again displayed our abilities of independent innovation and competitiveness in Chinese material research on the stage of top science project. 

  In the early 1990’s, CERN invited SICCAS to join the international collaboration to develop PWO scintillators which would be used in CMS. To meet the rigorous requirements of CMS project and the key problems of the synthesis and the performance of PWO crystals,  our researchers developed their work by novel doping and crystal growth technology under the leadership of Prof. Dongsheng Yan. With 14 years’ exploration and R&D work, the PWO crystals with large size and high quality have been put into mass production with the modified Bridgman method. 

  The PWO crystals by SICCAS have also been used in other research institutes and projects, such as Cebaf (USA), Jefferson Lab (USA), KEK (Japan), INFN (Italy), PANDA (Germany), etc. SICCAS has achieved several PWO research achievements possessing independent intellectual property rights, eg. the second prize of the National Technology Invention Award (2007), the CMS Crystal Award (2008).

 
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