Resarch on High-Intensity Proton Beam Lines

在Monbusho国际科学领域研究基金的最后两年，我们访问了欧洲和北美的以下10个主要的强束流和/或高能加速器设施：LAMPF（美国洛斯阿拉莫斯国家实验室）BNL（美国厄普顿布鲁克海文国家实验室）FNAL（美国费米国家实验室）LBL（美国加州大学劳伦斯伯克利实验室）TRIUMF（三大学介子设施），ISIS（英国卢瑟福·阿普尔顿实验室）SATURNE（法国SATURNE国家实验室）DESY（西德德国电子同步加速器）PSI（瑞士保罗·谢勒研究所）CERN（瑞士欧洲核研究组织）从这些实地研究中，我们了解到高能强流质子束加速的重要处理技术，可以总结为：1)在设计和建造阶段，必须注意加速器部件的处理和辐射剂量和场的减小。2)加速器部件采用抗辐射材料，建立免维护的束流线是很重要的。3)维护时，可远程访问各部件。

During the last two physical years of a Grant under The Monbusho International Scientific Field Research, we have visited the following 10 major accelerator facilities with strong beam currents and/or high energies in Europe and North America :LAMPF (Los Alamos National Laboratory, USA)BNL (Brookhaven National Laboratory, Upton, USA)FNAL (Fermi National Laboratory, USA)LBL (University of California Lawrence Berkeley Laboratory, USA)TRIUMF (Tri-University Meson Facilities, Canada)ISIS (Rutherford Appleton Laboratory, United Kingdom)SATURNE (SATURNE National Laboratory, France)DESY (Deutsches Elektronen-Synchrotron, West Germany)PSI (Paul Scherrer Institute, Switzerland)CERN (European Organization for Nuclear Research, Switzerland).From these Field Researches, we have learned the important handling techniques to accelerate proton beams with high energy and strong currents, which can be summarized as following :1) In the design and construction stage, handling of accelerator components and the reduction of radiation dose and field must be taken care of.2) Utilizing radiation-resistant materials for accelerator components, it is important to construct a maintenance-free beam line.3) In the case of maintenance, each component can be accessed remotely.