【摘 要】
:
The ATF2 project is the final focus system prototype for the ILC and CLIC linear collider projects, with a purpose of reaching a 37 nm vertical beam size at the
【机 构】
:
Institute of High Energy Physics,LAPP,LAL
【基金项目】
:
国家自然科学基金;Agence Nationale de la Recherche of the French Ministry of Research
论文部分内容阅读
The ATF2 project is the final focus system prototype for the ILC and CLIC linear collider projects, with a purpose of reaching a 37 nm vertical beam size at the interaction point (IP). During the initial com- missioning, we started with larger-than-nominal β-functions at the IP in order to reduce the effects from higher-order optical aberrations and thereby simplifying the optical corrections needed. We report on the simulation studies at two different IP locations developed based on waist scan, dispersion, coupling and β func- tion multiknobs correction in the large β optics of ATF2, in the presence of two kinds of magnet inaccuracies (quadrupote gradient and roll errors) to generate all possible linear optic distortions at the IP. A vertical beam size which is very close to the nominal beam size is obtained based on the simulation study.
其他文献
目的 采用高效液相色谱法测定金栀洁龈含漱液中盐酸小檗碱的含量.方法 以AGILENT C18为色谱柱,乙腈-0.3%磷酸溶液(42:58)(每100 ml加十二烷基磺酸钠0.1g)为流动相,以265 nm为
结合某2×660MW机组的具体情况,对600 MW级火电机组采用超临界或超超临界参数进行了详细的经济分析与比较,并给出推荐意见.
采用溶液法合成了3,5-二氯水杨醛氨基硫脲酰腙-邻菲啰啉Zn(Ⅱ)配合物,并培养出单晶.通过元素分析、红外光谱对配体及配合物结构进行了表征.利用Bruker SMART CCD衍射仪测定了
The crossing number of cartesian products of paths and cycles with 5-vertex graphs mostly are known,but only few cartesian products of 5-vertex graphs with star
采用微波消解-电感耦合等离子体质谱法(ICP-MS)同时测定珠光颜料中Pb、Cd、As、Hg、Ba、Cr、Sb、Se 8种元素的含量。各元素的校准曲线线性关系良好(r=0.9991—1.0000),检出限
随着现代影像医学的迅速发展,传统的医学影像学教学模式已经不能适应时代的发展和要求。图像存储与传输系统(PACS)的出现及其应用为医学影像学教学模式的改革提供了现实的物质
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7
基于电流变技术在盘式离合器上的应用,提出通过离合器结构优化来提高其传输性能.文章首先通过理论分析,发现盘式离合器采用平盘一波纹盘结构比双平盘结构输出扭矩要有明显提
弹性模量是指材料在弹性变形阶段内,正应力和对应的正应变的比值.它是材料刚度的度量,物体变形难易程度的表征.其在生物力学及生物医学工程中,是计算机虚拟现实建模及三维有
为监测选煤厂设备振动信号,设计了一种振动信号检测的MEMS无线传感器节点。该节点采用加速度传感器获取振动信号,进行了高速数据存储器设计;采用集成射频通信的CC2430模块,实现数据无线传输和模数转换处理;分析了节点低功耗设计方案;设计了电源和备用电源。最后给出了软件设计流程图。从整体上实现了对振动节点的硬件软件设计。该节点的实现为构建基于无线传感器网络的振动信号监测系统奠定了基础。