Publication Date:
1996
abstract:
The results of a study on imaging that is based on the absorption method are presented. This method is
based on attenuation measurements carried out in the presence of a sufficiently high absorption
coefficient by the use of a continuous-wave source. The benefit of absorption on image quality comes
from the strong attenuation of photons traveling along long trajectories. When the absorption
coefficient is increased, the received energy decreases, but the mean path length of received photons
decreases. The effect of increasing the absorption coefficient is similar to that of decreasing the gating
time when the time-gating technique is used. Experimental results showed that the spatial resolution
obtained with the absorption technique is similar to that obtained with the time-gating technique.
based on attenuation measurements carried out in the presence of a sufficiently high absorption
coefficient by the use of a continuous-wave source. The benefit of absorption on image quality comes
from the strong attenuation of photons traveling along long trajectories. When the absorption
coefficient is increased, the received energy decreases, but the mean path length of received photons
decreases. The effect of increasing the absorption coefficient is similar to that of decreasing the gating
time when the time-gating technique is used. Experimental results showed that the spatial resolution
obtained with the absorption technique is similar to that obtained with the time-gating technique.
Iris type:
01.01 Articolo in rivista
Keywords:
Imaging; time gating; absorption method; spatial resolution; turbid media
List of contributors:
Contini, Daniele
Published in: