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JEM-1200EX型电镜SENSITIVITY值与电子照射密度之间关系的测量分析
Measurement and analysis of the relationship between sensitivity value and the charge density by electronic irradiation on film of JEM\|1200EX type electron microscope
【摘要】 SENSITIVITY(SE)代表电镜在照像时电子照射到电镜底片上的电子照射密度(σ)。通过测量、分析SE取各不同值时EXPTIME及其相应的CURRENTDENS的取值范围,计算出了与各SE值相对应的电子照射密度σ(即EXPTIME值与CURRENTDENS值的乘积)的取值范围。由此,分析、计算出SE与σ的函数关系及其关系曲线
【Abstract】 To JEM\|1200EX type electron microscope,the value of sensitivity(SE) stands for the charge density(σ) that irradiated on film.Computed the value limits of σ(The product of the value of EXP time and the value of current dens) that corresponded to each value of SE by measuring and analyzing the value limits of EXP time and the value limits of current dens that corresponded to each value of SE.According to this,we analyzed and computed the functionship of SE and σ,drawing the relationship curve.
【关键词】 电子显微镜;
SENSITIVITY;
电子照射密度;
测量;
函数;
【Key words】 electron microscope; sensitivity; charge density of electronic irradialion; measurement; function;
【Key words】 electron microscope; sensitivity; charge density of electronic irradialion; measurement; function;
- 【文献出处】 电子显微学报 ,JOURNAL OF CHINESE ELECTRON MICROSCOPY SOCIETY , 编辑部邮箱 ,1999年05期
- 【分类号】TN16
- 【下载频次】22