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The laser output is coupled into the fibre using a converging lens.(a) True(b) FalseThis question was posed to me in an internship interview.I need to ask this question from PACS (Picture Archiving and Communication System) in portion Telemedicine Technology of Biomedical Instrumentation

Answer»

Right choice is (a) True

To elaborate: True, The He–Ne laser operating at 632.8 nm wavelength is USED. The laser OUTPUT is coupled into the FIBRE using a converging lens, which results in an increased power density at the skin surface and thus enables the detection of flow in the more DEEPLY seated veins and arteries.



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