The possible mechanism of split and ionization of sample molecules in flame is analyzed from the view point of fragmentation reaction. 从离子碎裂反应机理的角度,分析了火焰中样品分子裂解和电离的可能机理,并总结出可能影响电离效率的相关因素。
Methods The precision of the inverse intensity modulated radiation therapy planning system was examined by measuring with film and ionization chamber including shape coincidence of multileaf collimater ( MLC), absolute absorb dose in the defined space point, coincidence rate of isodose curve and dose intensity distribution. 方法用胶片和电离室测量,检测MLC的形状符合度、空间点的绝对吸收剂量、等剂量曲线符合度、剂量强度分布符合度,来验证逆向调强治疗计划的精度。
Study on the Determination of Apparent Ionization Degree of Strong Electrolytes by the Solidifying Point Reduction Method 凝固点降低法测定强电解质表观电离度的探讨
The practicality and the operational standard of determining the apparent ionization degree of strong electrolytes by means of solidifying point reduction method are researched in this article. 本文探讨用凝固点降低法测定强电解质表观电离度的实用性及操作规范。
An analytical study of the ionization mechanism in the TEC, a calculation of voltage-current characteristic and the distribution of plasma parameters between electrodes are described from a physical point of view. 讨论了TEC内的电离机构,计算伏安特性和等离子体参量分布的方法,给出了国外数值计算的结果。
At the same time, the simulation results also show the field plate structure can effectively reduce electric field intensity and decrease impact ionization ratio under the gate. As a result, the breakdown voltage at that point increases. 模拟结果同时还说明了场板结构可以有效的降低栅下的电场强度,减低碰撞电离率,从而提高该处的击穿电压。
Among the interactions, multi-photon ionization of an atom is a basic problem and becomes the focal point of the academia. 在这些相互作用中,原子的多光子电离是一个基本问题和研究热点。