6 CYCIAE-100中的束流动力学研究

为了满足高频腔安装的需要，磁铁峰区间隙在中心区从5cm增加到了6cm；为了给高频线提供空间，在外半径区从4cm增加到约5cm。同时，中心区间隙的增加给对中线圈的工程设计带来了方便。然而，对这样一个紧凑型的机器而言，叶片两边的边缘场对轴向聚焦的影响就变得很重要。因此，需对磁铁的基本结构再进行研究，并对其产生的磁场进行束流动力学研究。     

CYCIAE-100引出束流色散效应的研究

CYCIAE-100是一台紧凑式回旋加速器，加速负氢粒子束，引出方式为双向剥离引出。在回旋加速器内部的加速平衡轨道上，由于磁场的对称性，束流是消色差的。加速的H^-束流经过剥离膜剥离转换成质子后，将沿着引出轨道而被引出。由于磁场的非对称性和边缘场的存在，将会给引出的质子束流引入色散，造成水平的横向发射度增长。     

CYCIAE-100质子束流能量测量的物理计算

正串列加速器升级工程的CYCIAE-100回旋加速器的设计指标之一为质子束流能量达到100MeV以上。为了对该指标进行测量,加速器回旋中心建立了三维水箱系统对质子束的能量进行标定。在标定实验进行前,需对实验过程的重要参数进行模拟计算以保证实验的准确进行。模拟计算主要包括对质子束在水中的射程模拟及对实验中质子在不同材料中的输运过程进行修正。本次标定实验使用的束流管道采用钛膜作为质子出射窗。质子穿过钛窗后进入空气并水平方向入射三维水箱系统。表1列出了质子从束流线     

CYCIAE-100中心平面的Br对束流发射度的影响计算

在回旋加速器中，如果磁极的镜像对称被破坏，将在加速器的中心平面上产生一水平分量的场Br，在粒子相应轴向共振的作用下，这样的场将使中心粒子的运动偏离中心平面，进而使束流发射度发生变化。在回旋加速器中粒子由于径向磁场作用偏离中心平面运动的方程可表示为：     

CYCIAE-100剥离效率的研究

CYCIAE-100是一台紧凑式回旋加速器，加速负氢粒子束，通过剥离引出方式来引出质子束流。H^-经过碳剥离膜剥离掉两个电子后转化为质子，质子的产额由电子的损失截面来决定，而电子的损失截面紧紧依赖于能量。H^-能量越高，电子损失截面就越小。因此，在同样的剥离效率下，能量越高，所需碳膜就越厚。     

CYCIAE-30医用回旋加速器束流输运系统升级改造

在中国原子能科学研究院CYCIAE－30医用回旋加速器现有的束流输运系统的基础上，根据气体靶生产新品种医用同位素的技术要求，用TRACE－3D对束流输运系统的升级改造方案进行设计，包括束流线的总体布局和光学设计。根据束流光学设计的结果，〖JP3〗设计了新增束流线的磁四极透镜和偏转磁铁。     

CYCIAE-100剥离靶换靶试验

串列加速器升级工程正在研制的100MeV强流负氢回旋加速器采用剥离引出的方式引出能量为75～100MeV的强流质子束。剥离引出系统采用双内杆对称剥离引出方式,可在对称两个方向分别为各终端引出束流。剥离靶作为剥离引出系统的最为关键的设备,也是最为复杂的设备。     

Mapper Design for CYCIAE-100 Project

There is a big range of magnetic field in the compact cyclotron, and the error caused by magnetic measurement in the main field will directly affect the shimming to magnetic field. Above all, in view of the fact that the tiny error deviating from the ideal field will exert a severe influence on the beam, it is critical to raise the precision of measurement to a high level.     

Beam Dynamics Study for CYCIAE-100

To meet the need of the installation of the RF cavities, the hill gap is increased from 5 cm to 6 cm in the central region, and from 4 cm to -5 cm at the outer region so as to provide space for the RF liner. In the meantime, the space between the hills in the central region brings an easier engineering design of the centering coils. However, for such kind of compact machine, the fringe field at both sides of the sector magnet is quite important for the vertical focusing. So, the basic geometry is studied again and the field distribution is produced for beam dynamics study.     

Mapper Design for CYCIAE-100 Project

There is a big range of magnetic field in the compact cyclotron, and the error caused by magnetic measurement in the main field will directly affect the shimming to magnetic field. Above all, in view of the fact that the tiny error deviating from the idea…     

Beam Dynamics Study for CYCIAE-100

To meet the need of the installation of the RF cavities, the hill gap is increased from 5 cm to 6 cm in the central region, and from 4 cm to ~5 cm at the outer region so as to provide space for the RF liner. In the meantime, the space between the hills in…     

CYCIAE-14回旋加速器束流强度的精准测量

正CYCIAE-14是一台医用回旋加速器。由于癌症已成为人类最难对付的疾病之一,在发达国家,甚至已成为人类死亡的笫一杀手。因此,自1936年由Locher提出BNCT的思想以来,BNCT在美国、欧洲、日本、澳大利亚等地得到了长期的研究,特别是在20世纪90年代中期,取得了明显的进展。在国内,中核集团周永茂院士和天坛医院王忠诚院士于本世纪初跟踪国际创新实践,领导了国内第一座BNCT设施的建设,目前建造工作已经完成,在原子能院安装、调试。在加速器运行与调试的过程之中,需要利用FC筒对离子源注入线、剥离靶、引出口等位置的束流强进行精准的     

Calculation of Transverse Acceptance of CYCIAE-100

The acceptance of central region should be considered after the central ray is finished. This can check whether the central region design is reasonable or not, because in practice it is the bunched beam     

Calculation of Transverse Acceptance of CYCIAE-100

CARR燃料组件是板状元件，共有21块燃料板和20个矩形冷却流道。流道宽度不均匀，从外到内分别有2．59、2．45、2．32和2．20mm4种宽度，长度均为66．6mm。燃料组件的主要特点是热流密度高、传热性能好。良好的组件流量分配特性是充分发挥这些优点的重要保障。对于这种窄缝流道的水力特性和流量分配实验，国内外均进行不多，加之结构复杂，流速很高，因此，很有必要对它们进行实验验证。     

CYCIAE-100 MeV回旋加速器机械工程介绍

CYCIAE-100MeV回旋加速器非标机械结构主要包括离子源、轴向注入、中心区、高频腔体、频率自动微调、高频功率馈入、剥离靶引出、磁场调谐系统、对中线圈、径向束流探针、真空系统、相位探测系统、磁场测量系统、主线圈、束流诊断系统、束流调试靶、质子管道及传输元件、举升系统、运输安装与调节系统等。初步机械工程设计工作涉及到回旋加速器研制的各个方面,包括各系统为实现其功能所进行的结构设计、工艺设计、相关专业调研、加工方法、厂家选择、技术交流、采购、监造、分系统安装、分系统调试、验收、整体安装、整机调试、检修、运…     

Extraction System Design for CYCIAE-100 Project

The 100 MeV H- cyclotron is designed to produce 200 μA intense protons with the energy varying from 75 MeV to 100 MeV. The extraction system consists of two sets of stripping probes, and the beam will be extracted after stripping 2 electrons. Depending o…     

Extraction System Design for CYCIAE-100 Project

The 100 MeV H^- cyclotron is designed to produce 200 μA intense protons with the energy varying from 75 MeV to 100 MeV. The extraction system consists of two sets of stripping probes, and the beam will be extracted after stripping 2 electrons. Depending on the data of 100 MeV equilibrium orbits and magnetic field, we calculate the location of stripping points at various energies. The extraction optics is investigated by numerical tracking starting from the equilibrium orbits of various energies down to 70 MeV,     

CYCIAE-100主磁铁磁性能检测

2008年CYCIAE．100主磁铁的磁极毛坯件运抵中国原子能科学研究院,同时主磁铁上、下盖板和4个磁轭铸造完成。按照合同要求,磁极毛坯件的生产厂家（Industeel）提供了磁极毛坯件的化学性能和磁性能的检测结果,盖板和磁轭生产厂家（中信重机）提供了毛坯件的化学成分检测结果,为了复测磁极毛坯件的磁性能、检测盖板和磁轭的磁性能,分别对磁极、盖板和磁轭的本体样品进行了磁性能的检测。     

Progress on Design and Construction of CYCIAE-100

The project of 100 MeV high intensity cyclotron and its beam transport lines, CYCIAE-100, is designed to provide a 75-100 MeV, 200-500 μA proton beam with 7 proton beam lines and 2 neutron     

Axial Injection System Design for CYCIAE-100 Project

A 100 MeV high intensity proton cyclotron is under design at CIAE to provide proton beams more than 200 μA, and will provide pulse beams. In order to get high average intensity and have the ability of providing pulse beams, the injection system has two schemes, which corresponds to 1# and 2# injection lines respectively, shown in Fig. 1. 1# line adopts bottom-up axial injection and it is designed to solve CW