Obtaining good. fusion splices is much easier today, due to continued improvements to the fusion splice equipment, procedures and. practices, in addition to the evolutionary improvements in controlling optical fiber geometries. As a result, losses.
In CT, the total amount of radiation incident on the patient, known as the DLP, is the product of the CTDIvol and scan length (in centimeters) and is measured in milligray-centimeters.
1. How does the LC measure? The LC measures using the concept of triangulation. A laser diode shines a beam of light at the target. The light will diffuse off of the surface back toward the LC. This returning light is focused onto a Position Sensitive Device (PSD). The PSD measures the target distance by calculating the center of the returning spot.