The interest in Photo Radiation Therapy (PRT) has increased dramatically in the last two years. As the requirements for the evaluation of the technique have been established we have responded by designing dedicated laser equipment.
A. D. Berg,
"An Optimised Laser System For The Evaluation Of HpD Therapy", Proc. SPIE 0405, Optical Fibers in the Biomedical Field, (26 March 1984); doi: 10.1117/12.935661; https://doi.org/10.1117/12.935661