【摘 要】
：
目前国际上的强流重离子加速器通常在机器中安装镀有低解吸率材料的束流准直器用于阻挡由于电荷态变化而损失的离子,降低解吸出的粒子数以维持真空系统的稳定。本文计划在现
【机 构】
：
中国科学院近代物理研究所,中国科学院大学,
论文部分内容阅读
目前国际上的强流重离子加速器通常在机器中安装镀有低解吸率材料的束流准直器用于阻挡由于电荷态变化而损失的离子,降低解吸出的粒子数以维持真空系统的稳定。本文计划在现有的加速器冷却储存环主环(CSRm)上开展准直器模型腔测试、真空解吸率测量方面的研究。首先将介绍在CSRm上开展准直器系统研究的意义,其次根据实验室开发的损失率模拟计算软件确定准直器模型腔的安装位置,对安装位置中的真空设备进行了描述。随后重点阐述了CSRm准直器模型腔的硬件设计、控制系统及将来的测试方案。
At present, the heavy ion heavy ion accelerator in the world usually installs a beam collimator coated with a low desorption rate material in the machine to block the ions lost due to the change of the charge state and reduce the desorbed particle number so as to maintain the stability of the vacuum system. This article plans to conduct collimator cavity tests and vacuum desorption rate measurements on the existing CSRm. First of all, the significance of collimator system research on CSRm will be introduced. Secondly, according to the simulation software of loss rate developed by laboratory, the installation location of the collimator cavity will be determined and the vacuum equipment in the installation site will be described. After that, the hardware design, control system and future test scheme of CSRm collimator cavity are emphasized.
其他文献
In this study,an artificial neural network(ANN)model for studying the strength properties of steel fiber reinforced concrete(SFRC)containing fly ash was devised
A tensor-based updated Lagrangian(UL)formulation for the geometricaily nonlinear analysis of 2D beam-column structures is developed by using curvilinear coordin
The interaction between the heat source location,its intensity,thermal expansion coefficient,the machine system configuration and the running environment create
To investigate the dynamic characteristics of total suspended solids(TSS)and their particle-bound heavy metals in a first flush,the runoffsampling together with
基于精度与程度的逻辑差需求,提出了精度与程度的逻辑差粗糙集模型,定义了粗糙集区域概念.在精度与程度的逻辑差粗糙集模型中,得到了粗糙集区域的基本结构和精确描述,提出了
A one-dimensional momentum conservation equation for a straight jet driven by an electrical field is developed.It is presented in terms of a stress component,wh
以针对冲击失效劣化系统,提出一种新的δ一冲击失效模型,并基于该模型研究了N型更换策略下的不完全维修决策方法.首先通过扩充失效状态,在δ-冲击模型的基础上建立新的δ-冲
The free convective heat transfer to the power-law non-Newtonian flow from a vertical plate in a porous medium saturated with nanofluid under laminar conditions
This paper studies the Stokes flow of micro-polar fluids by peristaltic pumping through the cylindrical tube under the effect of the slip boundary condition.The
提出并初步研制成功一台利用14 GHz微波产生强流质子束的离子源。2013年在搭建的实验平台上进行了初步调试。在40 kV引出电压、200 W及14 GHz条件下，引出直流质子混合束流4 mA