Open AccessEffect of laser diode to spectrometer distance on perfusion
Author(s) -
Mariam M. Abud
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1664/1/012018
Subject(s) - laser diode , spectrometer , doppler effect , optics , wavelength , laser doppler velocimetry , laser , spectrum analyzer , physics , diode , perfusion , materials science , blood flow , medicine , optoelectronics , radiology , astronomy
Single Doppler methods remained a limited application for LDFM. Various distances effect between laser diode and spectrometer is important role in this application techniques especially medicine physics. In this research aimed to determine the effect of distance between the spectrum analyzer and laser diode by single Doppler Method on perfusion of the Artery. This is the position of arteriosclerosis diagnosis Results shown Change the distance between LD (wavelengths 780 nm) and spectrum analyzer (2,4,6, and 8 cm) that intensity incresed to 4 cm when enter light through position of artery, but decresed when incresed distance 8 cm. results is prove the increased blood velocity also increases the single signal, At distance 6 cm s is relatively higher for velocity having propagated a long distance, and therefore their contribution to the perfusion effect to the blood concentration and the measurement velocity will decrease compared to the distance 2 and 4 cm.