Instrumentation for fast functional optical tomography
Instrumentation for fast functional optical tomography
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DOI：
10.1063/1.1427768
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发表时间：
2002-02-01
影响因子：
1.6
通讯作者：
Barbour, RL
中科院分区：
文献类型：
--
作者：
Schmitz, CH;Löcker, M;Barbour, RL
In this article, we describe the design rationale and performance features of an integrated multichannel continuous wave (cw) near-infrared (NIR) optical tomographic imager capable of collecting fast tomographic measurements over a large dynamic range. Fast data collection (similar to70 Hz/channel/wavelength) is achieved using time multiplexed source illumination (up to 25 illumination sites) combined with frequency encoded wavelength discrimination (up to four-wavelength capability) and parallel detection (32 detectors). The described system features a computerized user interface that allows for automated system operation and is compatible with various previously described measuring heads. The results presented show that the system exhibits a linear response over the full dynamic measuring range (180 dB), and has excellent noise (similar to10 pW noise equivalent power) and stability performance (
