Imagent™ Specifications

Operations

• Method: frequency domain
• Modulation frequency 110 MHz
• Sampling time: minimum xx ms
• Number of channels: 4; upgradeable to 16

Measured Parameters

• Changes in [O₂Hb] oxygenated hemoglobin
• Changes in [HHb] deoxygenated hemoglobin
• Changes in [Hb] total hemoglobin

Light Sources

• Fiber coupled laser diodes
• Wavelengths: 690 nm and 830 nm
• Laser power: 10 mW average

Light Detectors

• Photomultiplier tubes

Sensors

• Selectedside-on photomultiplier tubes in room-temperature or cooled housing
• Optional: CCD camera

Interface

• Interfaceable to FastTrack by Polemus for Talairach registration technique of brain coordinates

Pre-Amplifier Discriminators

• 100 MHz bandwidth, TTL output

Computer and Operating System

• Intel-type CPU, Windows XP operating system

Power Requirements

• 110/240 V, 250 W

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