Revista: | Journal of applied research and technology |
Base de datos: | PERIÓDICA |
Número de sistema: | 000395698 |
ISSN: | 1665-6423 |
Autores: | Cruz Ojeda, N1 Porras Aguilar, R1 Ramos García, R1 Ramírez San Juan, J.C1 |
Instituciones: | 1Instituto Nacional de Astrofísica, Optica y Electrónica, Departamento de Optica, Tonantzintla, Puebla. México |
Año: | 2015 |
Periodo: | Dic |
Volumen: | 13 |
Número: | 6 |
Paginación: | 551-554 |
País: | México |
Idioma: | Inglés |
Tipo de documento: | Artículo |
Enfoque: | Aplicado, descriptivo |
Resumen en inglés | The statistics of temporal integration of dynamically scattered light is commonly employed to calculate the correlation time of the light and related physical properties of the object that produce it, i.e. scatterer's speed. Recently, studying the statistics of time-averaged fluorescence intensity, it was reported that a small dead-time (1% of the exposure time) of the photo-detector increases the correlation time by one order of magnitude compared with an ideal photo-detector. Applying the same theory to the speckle contrast calculation for blood flow measurement, we found that the effect of dead-time is negligible compared to an ideal photo-detector for contrast calculation |
Disciplinas: | Ingeniería, Medicina, Física y astronomía |
Palabras clave: | Sistema cardiovascular, Optica, Ingeniería biomédica, Moteado laser, Imagenología médica, Flujo sanguíneo, Fotodetectores |
Keyword: | Engineering, Medicine, Physics and astronomy, Cardiovascular system, Optics, Biomedical engineering, Laser speckle, Medical imaging, Blood flow, Photodetectors |
Texto completo: | Texto completo (Ver HTML) |