Preliminary design of a laser accelerator beam line

来源 :Chinese Physics C | 被引量 : 0次 | 上传用户:oliu1113
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
A compact laser plasma accelerator(CLAPA) is being built at Peking University, which is based on an RPA-PSA mechanism or other acceleration mechanisms. The beam produced by this laser accelerator has the characteristics of short duration, high pulse current, large divergence angle, and wide energy spectrum. The beam cannot be produced by a normal ion source and accelerator. The space charge field in the initial is very strong.According to the beam parameters from preparatory experiments and theoretical simulations, a compact beam line is preliminarily designed. The beam line mainly consists of common transport elements to deliver proton beam with the energy of 1–50 MeV, energy spread of 0–±1% and current of 0–108 proton per pulse to satisfy the requirement of different experiments. The simulation result of a 15 MeV proton beam with an energy spread of ±1%, current of 400 m A, and final spot radius of 9 mm is presented in this paper. A compact laser plasma accelerator (CLAPA) is being built at Peking University, which is based on an RPA-PSA mechanism or other acceleration mechanisms. The beam produced by this laser accelerator has the characteristics of short duration, high pulse current, large divergence angle , and wide energy spectrum. The beam can not be produced by a normal ion source and accelerator. The space charge field in the initial is very strong. According to the beam parameters from preparatory experiments and theoretical simulations, a compact beam line is preliminarily designed. The beam line mainly consists of common transport elements to deliver proton beam with the energy of 1-50 MeV, energy spread of 0- ± 1% and current of 0-108 proton per pulse to satisfy the requirement of different experiments. The simulation result of a 15 MeV proton beam with an energy spread of ± 1%, current of 400 m A, and final spot radius of 9 mm is presented in this paper.
其他文献
学生在创造性思维以及观念形成最关键的时期就是小学时期,而将数学这门学科的核心素养融入到日常教师授课的拓展中,对提升学生学科的核心素养具有非常重大的意义,教师在日常
美国:新核电项目建设与在役机组延寿并举美国新核电项目建设与在役机组延寿并举。美国核管会在时隔35年后新批准4台AP1000机组的建设,此外有14台机组的建造与运营联合许可申
语文教学既要强调认知、应用,也要注重欣赏、审美,语文教育应包含审美教育。试从物象、人情、构思和语言四个角度出发,重新审视中职语文课文中的美点,期待师生能更加重视课文
1932年11月8日夜晚,在庆祝十月革命胜利15周年的节日盛宴上,斯大林与妻子娜杰日达·谢尔盖耶夫娜发生了争执。“喂,你喝呀!”“人民之父”斯大林突然对没有喝酒的妻子说。“我不
学生探究能力的培养是小学科学教学的主要教学目标之一.在小学科学教学中要让学生参与到科学教学的探究过程并在此过程中激发大脑思维与创新潜能.通过举办各类探究教学活动能
提出了一种新的井内相控圆弧阵相位控制方式,实现了对地层SH横波的定向发射和接收,在此基础上发展了一种利用反射SH横波对井外反射体进行远探测的测井方法,旨在突破目前发展
硒(Se)是一种自然界普遍存在的微量元素,其氧化态中亚硒酸盐[Se(Ⅳ)]毒性最强,高浓度时会造成环境污染.在亚硒酸盐污染治理中,微生物法具有安全性好、低成本等优点,成为目前
在小学阶段,学生们的逻辑思维和语言能力都处于待发展和培养的阶段,因而就语文教学而言,在小学语文作文教学中的主要任务也就成为了培养学生们的语言表达和思维能力,这是目前
对列宁格勒遭围困期间的新研究表明,这座城市的居民既经受了可怕的苦难,也显示出惊人的勇敢。 New research on the siege in Leningrad shows that the inhabitants of the
学好语文是学习其它学科的基础,语文在我们国家中高考中越来越受到重视,语文中的阅读理解也在语文学习和考试中越来越受到重视,既要抓好学生的课本中文本,也要多读课外书籍,