Concentration measurements of bubbles in a water column using an optical tomography system

2012 ◽  
Vol 51 (6) ◽  
pp. 821-826 ◽  
Author(s):  
S. Ibrahim ◽  
Mohd Amri.Md Yunus ◽  
R.G. Green ◽  
K. Dutton
Keyword(s):  
Water Column ◽  
Optical Tomography ◽  
Tomography System ◽  
Concentration Measurements

scholarly journals Design and implementation of a multifrequency near-infrared diffuse optical tomography system

2006 ◽  
Vol 11 (1) ◽  
pp. 014020 ◽  
Author(s):  
Gultekin Gulsen ◽  
Bin Xiong ◽  
Ozlem Birgul ◽  
Orhan Nalcioglu
Keyword(s):  
Near Infrared ◽  
Optical Tomography ◽  
Diffuse Optical Tomography ◽  
Design And Implementation ◽  
Tomography System

scholarly journals Functional imaging of the human brain using a modular, fibre-less, high-density diffuse optical tomography system

2016 ◽  
Vol 7 (10) ◽  
pp. 4275 ◽  
Author(s):  
Danial Chitnis ◽  
Robert J. Cooper ◽  
Laura Dempsey ◽  
Samuel Powell ◽  
Simone Quaggia ◽  
...  
Keyword(s):  
Human Brain ◽  
Functional Imaging ◽  
Optical Tomography ◽  
Diffuse Optical Tomography ◽  
High Density ◽  
Tomography System

scholarly journals Comparison Between Two Different Types of Microcontroller in Developing Optical Tomography Controller Unit

2013 ◽  
Vol 64 (5) ◽  
Author(s):  
M. Fadzli Abdul Shaib ◽  
Ruzairi Abdul Rahim ◽  
Siti Zarina M. Muji ◽  
Naizatul Shima ◽  
Mohd Zikrillah Zawahir
Keyword(s):  
Optical Tomography ◽  
Tomography System ◽  
Different Types ◽  
Beam Projection ◽  
Further Development ◽  
Conditioning Circuit

This paper describes the comparisons on the usage of different PIC microcontroller towards the development of optical tomography controller for fan beam projection. The advantage and disadvantage for each PIC towards the development of tomography sensors is discussed. The transmission and receiving conditioning circuit integrate with PIC is presented and explained. This paper is vital for further development of optical tomography system as a whole system.

scholarly journals Real-Time Dual-Wavelength Time-Resolved Diffuse Optical Tomography System for Functional Brain Imaging Based on Probe-Hosted Silicon Photomultipliers

Sensors ◽  
2020 ◽  
Vol 20 (10) ◽  
pp. 2815
Author(s):  
David Orive-Miguel ◽  
Laura Di Sieno ◽  
Anurag Behera ◽  
Edoardo Ferocino ◽  
Davide Contini ◽  
...  
Keyword(s):  
Brain Imaging ◽  
Near Infrared ◽  
Optical Tomography ◽  
Diffuse Optical Tomography ◽  
Brain Activation ◽  
Functional Brain Imaging ◽  
Dual Wavelength ◽  
Silicon Photomultipliers ◽  
Functional Brain ◽  
Tomography System

Near-infrared diffuse optical tomography is a non-invasive photonics-based imaging technology suited to functional brain imaging applications. Recent developments have proved that it is possible to build a compact time-domain diffuse optical tomography system based on silicon photomultipliers (SiPM) detectors. The system presented in this paper was equipped with the same eight SiPM probe-hosted detectors, but was upgraded with six injection fibers to shine the sample at several points. Moreover, an automatic switch was included enabling a complete measurement to be performed in less than one second. Further, the system was provided with a dual-wavelength (670 n m and 820 n m ) light source to quantify the oxy- and deoxy-hemoglobin concentration evolution in the tissue. This novel system was challenged against a solid phantom experiment, and two in-vivo tests, namely arm occlusion and motor cortex brain activation. The results show that the tomographic system makes it possible to follow the evolution of brain activation over time with a 1 s -resolution.

Real-time multispectral diffuse optical tomography system for imaging epileptic activity and connectivity

2013 ◽  
Author(s):  
Tao Zhang ◽  
Jianjun Yang ◽  
Junli Zhou ◽  
Hao Yang ◽  
Paul R. Carney ◽  
...  
Keyword(s):  
Real Time ◽  
Optical Tomography ◽  
Diffuse Optical Tomography ◽  
Epileptic Activity ◽  
Tomography System
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