Authors: Weylan Thompson, Hans Peter Brecht, Sergey Ermilov, Vassili Ivanov


PhotoSound Technologies specializes in the development of electronics solutions for massive parallel data acquisition applicable to the fields of photoacoustics (PA), X-ray acoustics, including 3D dosimetry, and ultrasound. PhotoSound’s Legion ADC256 R1.1, released in 2018, is a 256-channel 12-bit ADC with a sampling rate of 40 MHz. The ADC256’s average data bandwidth is limited by its USB3 PC interface, which has a data rate up to 3 Gbps per board. Multiple ADC256 boards can operate fully in parallel. On software level configurations, multiple ADC256 boards are represented as a single ADC board with increased number of channels. The incoming ultrasound (US) upgrades and modifications of ADC256 will enable combination and alternation of US and PA modes using the same probe. PhotoSound MoleculUS is a medical-grade Telemed US system combined with a PA-optimized ADC. MoleculUS utilizes clinical US probes to produce US images which can be interleaved with PA imaging by enabling optical fiber illumination. The other ADC256 modification, advanced PAUS oriented for research, will have PCIe PC interface for raw PA and US data and arbitrary software control over beamformer profiles, limited by high-voltage power only. The data in ultrasound and photoacoustics modes is user accessible in raw format and can be delivered to CUDA GPU using MATLAB parallel computing (CUDA) toolbox or other tools. Multiple PAUS boards can work in parallel in both PA and US modes.

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