中国科大大一新生《科学与社会》研讨课 《反物质世界的探索？014/11/30 low positron beam, 2D-PAS CFD he RGM-1 solid neor oousht from the FIRST POINT SCIENTIFIC COMPANY Now it is being installed to match with the original beam. Count rate:~30-40cps 角主机 中国科大物理学院叶邦角教授主讲 版权所有，禁止传播 142014/11/30 14 Count rate: ~ 30-40cps Slow positron beam, 20mCi 22Na Pulse slow positron beam,50mCi 22Na Main performance intensity: 104 - 105 e+/Sec. beam size: d < 6 mm pulse width： (FWHM) < 200 ps) energy range: 0-30 keV energy distribution: 4 eV The RGM-1 solid neon moderated system has been bought from the FIRST POINT SCIENTIFIC COMPANY. Now it is being installed to match with the original beam. 中国科大大一新生《科学与社会》研讨课 《反物质世界的探索》 中国科大物理学院叶邦角教授主讲 版权所有，禁止传播 叶邦角主机