Heiney, Paul A.2023-05-232017-03-062016-03-302017-03-06https://repository.upenn.edu/handle/20.500.14332/49702X-ray wavelength, absorption, radiography. Time 2:44.youtubehttp://creativecommons.org/licenses/by-nc/4.0/X-raywavelengthradiographymedicalPhysicsArticle