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制作曝光曲线的意义与目的由于γ射线探伤具有成本低、使用方便及维护简单等优点,因此最近几年来,它在机械制造工业、造船工业、航空工业等各个方面得到了大量的应用,对产品质量起了一定的保证作用。但是,γ射线照片灵敏度较差(清晰度没有X射线好),这使它在应用方面还受到限制。如果把灵敏度提高到一定程度,那么就能弥补这个缺陷。这是有可能的,途径也是比较多的。例如:在选择放射源时,尽可能采用能量较小的同位素
The significance and purpose of making the exposure curve Because of the advantages of low cost, easy to use and easy maintenance, the γ-ray inspection has gained a great deal of applications in the mechanical manufacturing industry, shipbuilding industry and aviation industry in recent years. Quality has played a role in guaranteeing. However, gamma-ray images are less sensitive (no sharp X-rays), which limits their applicability. If you increase the sensitivity to a certain extent, then you can make up for this shortcoming. This is possible, the way is more. For example: In the selection of radioactive sources, as far as possible the use of less energy isotopes