DIRECT MEASUREMENT OF GEOMETRIC AND RESISTIVE WAKEFIELDS IN TAPERED COLLIMATORS FOR THE INTERNATIONAL LINEAR COLLIDER
DIRECT MEASUREMENT OF GEOMETRIC AND RESISTIVE WAKEFIELDS IN TAPERED COLLIMATORS FOR THE INTERNATIONAL LINEAR COLLIDER
复制标题
国际直线对撞机锥形准直器中几何和电阻尾流场的直接测量
DOI：
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
M. Woods
中科院分区：
文献类型：
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作者：
N. Watson;D. Adey;Y. Kolomensky;F. Zimmermann;N. Shales;A. Sopczak;R. Tucker;A. Bungau;G. Kurevlev;A. Mercer;M. Kärkkäinen;W. Mueller;T. Weiland;R. Erickson;C. Hast;S. Molloy;M. Ross;S. Seletskiy;A. Seryi;Z. Szalata;P. Tenenbaum;M. Woodley;M. Woods
在国际直线对撞机（ILC）中，为了防止在相互作用区附近的束流损失，需要对束晕进行精确的准直，以免对物理探测器造成不可接受的背景。准直器的必要的小孔径导致横向尾场，这可能导致束偏转和发射度增加。一组准直器韦克菲尔德测量先前已在ASSET区的SLAC直线加速器。我们报告该计划的下一阶段，这是在最近委托的终端站A（欧空局）在SLAC的测试设施进行。电阻和几何尾场使用锥形准直器的测量进行了比较与模型预测MAFIA和GdfidL和解析计算。
Precise collimation of the beam halo is required in the International Linear Collider (ILC) to prevent beam losses near the interaction region that could cause unacceptable backgrounds for the physics detector. The necessarily small apertures of the collimators lead to transverse wakefields that may result in beam deflections and increased emittance. A set of collimator wakefield measurements has previously been performed in the ASSET region of the SLAC Linac. We report on the next phase of this programme, which is carried out at the recently commissioned End Station A (ESA) test facility at SLAC. Measurements of resistive and geometric wakefields using tapered collimators are compared with model predictions from MAFIA and GdfidL and with analytic calculations.