第12届全反射X射线荧光分析以及相关方法会议(Ⅰ)

本届会议于2007年6月18日至22日在意大利Trento市召开, 由Universita Degli Studi di Trento大学主办、国际原子能机构(IAEA)协办.内容涉及: (a) 微电子学方面的应用;(b) 有关仪器与技术的研、发;(c) 文化遗产及其保护方面的应用;(d) 环境与工业方面的应用;(e) 生物学与医学方面的应用;(f) 特殊应用以及相关方法.     

Neutron beam optimization based on a ^7Li（p,n）^7Be reaction for treatment of deep-seated brain tumors by BNCT

Neutron beam optimization for accelerator-based Boron Neutron Capture Therapy（BNCT） is investigated using a ^7Li（p,n）^7Be reaction. Design and optimization have been carried out for the target, cooling system,moderator, filter, reflector, and collimator to achieve a high flux of epithermal neutron and satisfy the IAEA criteria.Also, the performance of the designed beam in tissue is assessed by using a simulated Snyder head phantom. The results show that the optimization of the collimator and reflector is critical to finding the best neutron beam based on the ^7Li（p,n）^7Be reaction. Our designed beam has 2.49×109n/cm^2 s epithermal neutron flux and is suitable for BNCT of deep-seated brain tumors.     

纪念黄胜年先生逝世一周年

2010年1月8日是黄胜年先生逝世周年纪念日.我们特写此文来缅怀这位新中国培养的核物理学家、受人爱戴的同事.