Physical measurements of heavy metal filter performance.


Contrast, relative tube loading, and relative entrance exposure have been measured for a number of heavy metal filters (Gd, Ho, Yb, and W) at several filter thicknesses, tube voltages (70-100 kV), and phantom thicknesses (1.5-2.5 cm of aluminum). The rare-earth filters consistently gave higher contrast (relative to water) for air, CaCl2, iodine, and oil… (More)


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@article{Burgess1985PhysicalMO, title={Physical measurements of heavy metal filter performance.}, author={Antony Burgess}, journal={Medical physics}, year={1985}, volume={12 2}, pages={225-8} }