当我们遇到一个无损试验问题时,首先应考虑的事情是选择或者使用试验方法。此种选择必须考虑到许多因素,具体说就是被试验对象的几何形状,数量以及所要求的质量水平。就装置来说,要叙述的是,每年能够系统地试验30000个直径为6.5毫米,长2米和厚0.45毫米的不锈钢管。这些管子是用来作PHEN IX快速中子反应堆的燃料元件的复 When we encounter a non-destructive test question, the first thing to consider is to choose or use a test method. This choice has to take into account many factors, in particular the geometry of the test object, the quantity, and the level of quality required. As far as the installation is concerned, it is stated that 30,000 stainless steel pipes 6.5 mm in diameter, 2 meters in length and 0.45 mm in thickness can be systematically tested each year. These tubes are used as a fuel element for the PHEN IX fast neutron reactor