搜索结果: 1-7 共查到“核科学技术 RF”相关记录7条 . 查询时间(0.085 秒)
Experimental study on SC RF cavities by using China large grain niobium for ILC
ILC superconducting RF cavity large grain niobium
2009/7/31
Large grain niobium has the potential of simplifying the production sequence and consequently reducing the cost of the superconducting RF cavities for ILC. To investigate the feasibility of fabricatio...
Collective effects for long bunches in dual harmonic RF systems
resistive impedance incoherent motion halo formation coherent dipole instability
2009/7/31
The storage of long bunches for large time intervals needs flattened stationary buckets with a large bucket height. Collective effects from the space charge and resistive impedance are studied by look...
A new tuning procedure for the DTL RF field pattern
DTL deviation average axial field tuning
2009/7/31
The DTL tank is a multi-cell cavity. In a fabricated tank,the measured average axial field E0 for each cell may obviously deviate from the designed value. It is generally thought the deviation is due ...
以PS为模板的RF气凝胶空心微球制备
制备 RF气凝胶空心微球 PS
2009/7/24
采用聚苯乙烯（PS）空心微球为模板，间苯二酚/甲醛（RF）为前驱体溶液，邻苯二甲酸二丁酯为分散剂，以界面聚合反应为基础合成PSRF核壳双层球，用丙酮去除模板，制得RF空心微球。分别采用红外光谱、X光显微分析、透射电镜（TEM）、N2吸附脱附和原子力显微分析，对RF空心微球成分、形貌、孔径、表面粗糙度等进行表征。结果表明：RF为单层空心球壳，具有典型的气凝胶多孔结构，由粒径约为10 nm且...
分散剂对RF凝胶掺钛过程的影响
RF凝胶 钛 掺杂
2009/2/18
以间苯二酚、甲醛和经分散的纳米钛粉为反应前体，利用物理掺杂方法研究了掺钛RF凝胶的制备工艺，并在凝胶过程中以zeta电位粒径分布测试仪对溶液的粒径分布进行分析测试。实验发现六偏磷酸钠对纳米钛粉的分散性最好，掺杂后凝胶时间明显缩短；分散剂种类和用量对凝胶时间有较大影响，其用量为纳米钛粉量的50~100倍为宜。
驻波电子直线加速器中的RF相位聚焦
RF相位聚焦 加速器 驻波
2008/11/3
分析了驻波电子直线加速器中电子受ＲＦ场的横向作用与其所处相位的关系，探讨了驻波直线加速器中的ＲＦ相位聚焦以及不对称场幅值分布对粒子横向动力学的影响，并给出利用相位聚焦和不对称场幅值分布技术设计的两只加速管实例。