beam radius meaning in Chinese
光束半径
束流半径
Examples
- The results show that by increasing the beam current or beam radius , the gain of the structure can be increased . the decreasing of the beam voltage increases the gain of the twt but reduces the bandwidth
得出的主要结论为：电流和电子注半径的增大使得该结构的行波管的增益有较大增加，电压的降低可使增益加大但带宽减小。 - The analyses given in this paper to quasi - three - level for 946 nm laser are complete . the relation between 946 nm laser transmission and optimal crystal length has been derived from the rate equations describing the population inversion and the photon density in the laser cavity in the steady - state case . the minimal claims to coating have been given on the base of contrasting 946 nm transmission with 1064 nm transmission in the condition of different cavity losses and how the pump beam radius in the laser crystal and optimal crystal length affect the laser threshold and output power of 946 nm laser has been given as well
对产生946nm谱线的准三能级结构给出了较为完整的分析，利用激光谐振腔处于稳态时的速率方程，导出了准三能级nd ： yag946nm起振时，透射损耗与最佳激光晶体长度的关系，在与1064nm透射损耗相比较的基础上，给出了不同的腔损耗情况下的最低镀膜要求，并且给出了激光阈值、输出功率和最佳激光晶体长度及泵光光斑大小的关系，这为设计室温下高效运转的946nm激光器的提供了理论基础，这种分析方法对研究此类低增益，准三能级或三能级激光系统输出特性有借鉴意义。 - Using the particle - in - cell ( pic ) model , a 8 millimeter relativistic backward wave oscillator underlying superradiance mechanism was gotten , the influence on both operation frequency and radiation efficiency of the guiding magnetic field , the diode voltage , the beam current and the beam radius as well as the corrugation structure were also presented
采用pic方法，通过数值模拟优化设计了超辐射状态下的8毫米相对论返波振荡器，分析了引导磁场、二极管电压、电子束流、电子束半径、周期慢波结构等对器件的辐射功率及辐射效率的影响。 - The mode competition is much improved . it may operated with a large electron beam radius , that means decreasing the space charge effects compared with a smaller radius beam with the same current , hence the rbwo may operated with a low axial guide magnetic field . besides , the rbwo with a sinusoidal corrugated coaxial structure is very easy to manufacture
波纹内导体rbwo具有一些突出优点:同轴结构中内导体的存在使系统的截止频率显著升高,使得系统尺寸可比普通波纹波导慢波系统大;具有很大的抑制模式竞争的能力和很高的功率容量;可以采用大半径电子注,在工作电流不变的情况下空间电荷效应大幅度降低,因而可以工作在低磁场状态;此种慢波结构内导体上的波纹易于加工。