Lower speed films produce images of good resolution and dynamic range but requires more photons for exposure and increases the radiationdosage of the subject.
较低的速度电影产生良好的分辨率和动态范围的图像，但需要接触更多的光子，并增加了受辐射剂量。
2
The radioelement content of certain material is higher, when its intensity and radiationdosage exceed certain limit, can cause a harm to human body.
某些材料的放射性元素含量较高，其强度和辐射剂量超过一定限度时，就会对人体造成危害。
3
Finally we conclude that the sensitive structure is a constant not varying with the radiationdosage.