PhotoTrack

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Phototrack

The ASI PhotoTrack solves the problem of tracking a moving specimen. Combined with ASI’s closed loop DC servo motor XY stages, PhotoTrack allows you to keep your free-moving samples in your field of- view (FOV) no matter where they want to go. PhotoTrack uses a low-light-level rapid position sensing quadrant PMT sensor to monitor a right reference spot on the target. It then commands the XY stage to maintain that spot in the center of a microscope’s field-of-view.

Applications Include

Cell behavior studies
Static alignment to fluorescent fiducials
Optical recording of neurons in moving animals
Tracking of labeled samples from organelles to organisms with high-powered objectives

Specifications

Sensor Mount	Parfocal C-Mount
Sensor Controls	Manual Gain, On/Off, Iris, Overload Reset
Beam Splitter Ratio	20/80, 10/90, or Dichroic
PMT Type	Hamamatsu 4-channel XY quadrant
PMT Protection	High voltage shutdown on overload
PMT Usable Dynamic Range	> 60 dB
Servo Loop Time	3 milliseconds
Read Time	2 milliseconds
Overall Response Time	< 25 milliseconds
Sensor Dimensions (H x W x D, not counting plug)	74 x 94 x 79 millimeters 2.9 x 3.7 x 3.1 inches
Controller for PhotoTrack Sensor	Integrated with specially-configured ASI MS-2000 controllers