Attempts to increase penetration of photoacoustic system using led array light source

Toshitaka Agano; Naoto Sato; Hitoshi Nakatsuka; Kazuo Kitagawa; Takamitsu Hanaoka; Koji Morisono; Yusuke Shigeta

doi:10.1117/12.2077377

11 March 2015 Attempts to increase penetration of photoacoustic system using LED array light souce

Toshitaka Agano, Naoto Sato, Hitoshi Nakatsuka, Kazuo Kitagawa, Takamitsu Hanaoka, Koji Morisono, Yusuke Shigeta

Proceedings Volume 9323, Photons Plus Ultrasound: Imaging and Sensing 2015; 93233Z (2015) https://doi.org/10.1117/12.2077377
Event: SPIE BiOS, 2015, San Francisco, California, United States

Abstract

When we consider the needle visualization in the field of point of care by utilizing the photoacoustic imaging system, and using the conventional solid state laser light source, the issue arises such as device size and not a green system due to the high power consumption. Therefore, we aimed at an environmentally friendly and compact system with low power consumption by using a NIR-LED array light source. The intensity of NIR-LED light is weak, but, by averaging photoacoustic signals with multiple pulse, we have improved S/N of the photoacoustic signal. As a result, we’ve achieved penetration depth of 30mm.

Citation Download Citation

Toshitaka Agano, Naoto Sato, Hitoshi Nakatsuka, Kazuo Kitagawa, Takamitsu Hanaoka, Koji Morisono, and Yusuke Shigeta "Attempts to increase penetration of photoacoustic system using LED array light souce", Proc. SPIE 9323, Photons Plus Ultrasound: Imaging and Sensing 2015, 93233Z (11 March 2015); https://doi.org/10.1117/12.2077377

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