Some examples of radiography using a 5 MeV electron LINAC driving a bremsstrahlung source ( 1 mm Tungsten on a 9 mm copper sheet ) can be seen here.
2.
After teaching at Duke University ( 1969 70 ), he joined Lawrence Livermore National Laboratory in Livermore, California where he did research in basic and applied nuclear physics at a 100-MeV electron linac, including studies into nuclear fission and nuclear astrpophysics.