Speaker
Prof.
Li Zhou
(Institute of High Energy Physics (IHEP) Chinese Academy of Science)
Summary
According to the general physics requirements of BES, the design
of EMC is
based on CsI(Tl) crystals． There are a total piece of 6272
CsI(Tl) crystals are
used and with a total weight of about 24 tons.
Mass production Quality Control : 1. Crystal Light Production and
Uniformity, 2.
Crystal Dimension，3，Crystal Radiation Hardness,
4. Cosmic Rays test 。
Up to now EMC assembly were finished and cosmic-ray test were down .
Primary author
Prof.
Li Zhou
(Institute of High Energy Physics (IHEP) Chinese Academy of Science)
