Why must films of category C4 or higher be used for gamma source flaw detection?
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In accordance with the requirements of NB47013, gamma source flaw detection must use film of category C4 or higher. Why is such a requirement in place? ? ? －－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－ Spring has arrived! We welcome all our friends to actively participate in the activity 【Spring Has Come to Haichuan Chemicals】 organized by the travel section, and to share photos of the spring scenery from various places. We’re looking forward to seeing your contributions! －－－－－－－－－－－－－－－＝＝＝＝ ／－－－－－－－－－－－－－－－－－
Gamma rays are primarily hard radiation, resulting in low contrast in the images produced; therefore, film with a low grain structure is required
Generally, the higher the energy of the gamma source, the greater the scattered radiation. Using film with fine particles can reduce the gradient and increase the contrast, which facilitates the detection of defects!