Multi-Channel Parallel TCSPC Systems
- 12, 24, or 32 Parallel TCSPC Channels
- Each Channel Contains One SPC-150NX or SPC-180NX Module
- All Channels Operated from One Computer
- LabVIEW Software, Extendable by User
- Electrical Time Resolution 3.5 ps FWHM
- Internal Timing Jitter <1.6 ps RMS
- Centroid of IRF Stable Within <0.4 ps RMS Over 100 Seconds
- Application in NIRS, fNIRS
Multi-Channel ps Diode Laser Systems
- High-Power BDS-MM Multi-Mode ps Diode Lasers
- Wavelengths from 640 nm to 850 nm
- Repetition Rate 50 MHz, 20 MHz
- CW Equivalent Power 15 mW at Near-Gaussian Pulse Shape
- Crates with up to 8 Lasers
- Electronic Power Control
- Fast ON / OFF Capability
- Multiplexing Capability
- Internal Power Stabilisation
- Control Integrated in LabVIEW TCSPC Software
Multi-Detector Assemblies
- Crates with Eight PMCS-150 Detectors
- Thermo-Electric Cooling
- NIR Photocathode
- 100 to 120 ps FWHM IRF Width
- Internal Overload Shutdown
- Low Susceptibility to Magnetic Fields
Description
NIRS and fNIRS applications require a large number of laser and detection channels with high time resolution and high timing stability. Especially in fNIRS, effects under investigation cause changes in the DTOFs of no more than a few picoseconds. It is therefore mandatory that the timing drift and, especially, the low-frequency timing wobble of the TCSPC modules is in the sub-picosecond range. Moreover, a parallel architecture is desirable to achieve high throughput and low channel crosstalk.
The bh NIRS subsystems combine the extraordinarily high timing stability of the SPC-150NX with the high throughput of a multichannel system. The systems are complemented by 8-channel laser modules and 8-channel detector modules. Each laser module contains eight BDS-MM lasers with high power, perfect pulse shape, high intensity stability, and extremely low timing drift. Each detector module contains eight PMCS-150-20 detectors with high sensitivity, fast IRF, extremely low timing shift with the count rate, and low susceptibility to magnetic fields.
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