Effective dimensions of roentgen tube focal spots based on measurement of the modulation transfer function.
D008433:Mathematics; D008722:Methods; D055095:Optics and Photonics; D011827:Radiation / Q000592:standards; D011874:Radiometry; D011878:Radiotherapy / Q000295:instrumentation; D011879:Radiotherapy Dosage; D013679:Technology, Radiologic