1887
banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
A compact time-resolved system for near infrared spectroscopy based on wavelength space multiplexing
Rent:
Rent this article for
USD
10.1063/1.3495957
/content/aip/journal/rsi/81/11/10.1063/1.3495957
http://aip.metastore.ingenta.com/content/aip/journal/rsi/81/11/10.1063/1.3495957
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Comparison between the two different injection approaches and how the acquired curves appear in a temporal window. (a) TM, (b) SM.

Image of FIG. 2.
FIG. 2.

Overview of the entire system. ND: neutral density attenuator; S: injection fibers; B: collection bundle; PMT: photomultiplier tube; A: amplifier; TCSPC: time correlated single photon counting board; : microcontroller unit; and Sync: synchronization signal.

Image of FIG. 3.
FIG. 3.

Example of the instrument response function (black points) and of a time-resolved reflectance curve (open symbols) at 690 nm.

Image of FIG. 4.
FIG. 4.

Linearity for the absorption and reduced scattering coefficients at 690 nm.

Image of FIG. 5.
FIG. 5.

Linearity for the absorption and reduced scattering coefficients at 829 nm.

Image of FIG. 6.
FIG. 6.

CV for the absorption and reduced scattering coefficients. The solid lines are the linear fit of CV. (a) CV at 690 nm. (b) CV at 829 nm.

Image of FIG. 7.
FIG. 7.

Stability test: percentage variations with respect of the average values of the absorption coefficients at (a) 690 nm and (b) 829 nm.

Image of FIG. 8.
FIG. 8.

Arterial occlusion on the left arm. (a) Changes in HHb and on the left (l) and right (r) arm. (b) Time course of the absolute value of the saturation coefficient .

Image of FIG. 9.
FIG. 9.

Changes in HHb and during right hand movements. (a) Left hemisphere. (b) Right hemisphere.

Image of FIG. 10.
FIG. 10.

Trend of the count rate at 690 nm when it is kept fixed at different values and the count rate at 829 nm is varied. Fixed values: (a) , (b) , (c) , and (d) . The results are shown for three different configurations: SM, TM, and TMR. The solid lines are the linear fit.

Image of FIG. 11.
FIG. 11.

Scattering coefficients at 829 nm. First row: and ; second row: and . First column: fixed value of ; second column: fixed value of . The solid lines are the linear fit.

Loading

Article metrics loading...

/content/aip/journal/rsi/81/11/10.1063/1.3495957
2010-11-02
2014-04-23
Loading

Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: A compact time-resolved system for near infrared spectroscopy based on wavelength space multiplexing
http://aip.metastore.ingenta.com/content/aip/journal/rsi/81/11/10.1063/1.3495957
10.1063/1.3495957
SEARCH_EXPAND_ITEM