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“放射性的探测”一节在中等学校的物理课程中原子核物理基础知识的章节里可算为重要的环节。如果能够自己制作α和β两粒子的云雾室中的径迹的幻灯片,在上课时边讲边放映来代替课本中的照片,定能更好地调动学生的学习积极性;同时,也可增加他们摄影技术的兴趣。因此、我校自制了威尔逊云雾室中放射性物质的α和β两射线的径迹的幻灯片(如照片所示)。现将需用的器材列述在下,以备使用:(1)照相机:海鸥DF-1(备注:此机还配有广角与远摄两镜头;但必须使用标准镜头、即F2/58mm,或加上近摄接圈)。(2)
The section “Radioactive Detection” can be an important part of the basics of nuclear physics in the Physics Curriculum for Secondary Schools. If we were able to produce tracks of slides in a cloud chamber of alpha and beta particles ourselves and replace them with photos in textbooks while we were in class, we would be better able to mobilize students’ enthusiasm for learning. In the meantime, Their interest in photography. As a result, our school made slideshows of tracks for the alpha and beta rays of radioactive material in the Wilson cloud chamber (as shown in the photo). (1) Camera: Seagull DF-1 (Note: This machine is also equipped with wide angle and telephoto two lenses; but must use the standard lens, that is, F2 / 58mm, or Plus close-up ring). (2)