论文部分内容阅读
通常是藉威尔遜雲室的膨脹來观察α及β粒子的徑跡。伹是由於可观察的時間太短(不过0.1秒),故不適合於演示的目的;此外,由於威爾遜雲室具有可動的部分因而構造複雜,在学校中製造好的雲室是有困难的,而现成的教学用雲室又不容易調節,結果也很难令人滿意。下面介紹一种構造简單的所謂擴散雲室,它有延續的可見性,而且不需要特别的调節,在任何一個物理实驗室中都能够很簡易地製成这類雲室。雲室是一個立方形或圆柱形的密閉的容器(圖1),四壁是
The traces of α and β particles are usually observed by the expansion of the Wilson cloud chamber.伹 is not suitable for demonstration purposes because the observable time is too short (but 0.1 second); furthermore, it is difficult to make a good cloud chamber in school due to the complex structure of the Wilson cloud with its movable part Ready-made teaching cloud room is not easy to adjust, the result is difficult to be satisfactory. The following is a brief description of the so-called so-called diffusive cloud chamber, which has the continuity of visibility, and does not require special adjustments in any one physical laboratory can be easily made of such cloud chamber. Cloud chamber is a cubic or cylindrical closed container (Figure 1), the walls are