The CsI(Tl)crystal is regarded as all-important material for its excellent characters in high-energy physics experiments and used as the electro-magnetic calorimeters(EMC)to measure the energy and position of highenergy-ray and electron[1-3].It has higher detection efficiency and sensitivity for X-and-ray with the advantage of higher density,higher light yield,not to be easily deliquesced,and without vacuum packaging.In recent years,the Crystal Detector Group in IMP has improved the processing technology and produced the CsI(Tl)crystals with different size in order to meet requirements from more and more new fields.Now we are able to develop the CsI(Tl)crystal array with the different size.
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