A survey of surface back-scatter factors for radiations generated at 200 to 250 kV. (half-value layers from 1.0 to 3.5 mm of copper).
D003300:Copper; D003625:Data Collection; D017228:Hepatocyte Growth Factor; D014965:X-Rays
D017228:Hepatocyte Growth Factor; D003300:Copper
ROENTGEN RAYS