![Show Menu](styles/mobile-menu.png)
![Page Background](./../common/page-substrates/page0246.jpg)
Some developments: DECT
DECT exploits energy and compositional dependence of
µ
at keV energies
µ
(E) =
ρ
(af
compton
(E) + bf
PE
(E))
a and b depend only on composition of material
Scan at 2 energies to give Z
eff
and electron or mass density
via simultaneous equations
Attenuation is function of medium density and elemental composition
Several materials same HU but different densities and elemental compositions