31371272[picture-taking techniques by radiation type]PT2026-03-30 20:40:08BT31340553picture-taking techniquesPTNT31410058radiographyPTNT31410060available light photographyPTNT31410068infrared photographyPTNT31410072schlieren photographyPTNT31410074ultraviolet photographyPTNT31410079flash photographyPTNT31410081infrared reflectographyPTNT31410085fluoroscopyPT