XR/MEGA-10Zero ZERO EFFECTIVE READ NOISE-DARK COUNTS COOLED PHOTOCATHODE ICCD CAMERA
The XR/MEGA-10Z™ ICCD camera platform is a breakthrough product that pushes low light imaging and detection to new limits of performance. Stanford Photonics has combined the high QE and low intrinsic dark current characteristics of GaAsP intensifier technology with Peltier cooling for what amounts to virtually zero dark current/dark counts for video rate sampling. 1-2 counts per frame at 30 frames per second (FPS) and far less than one count per frame, on average, at 120 FPS is typical.
Because of the high gain afforded by a dual MCP amplifying stage, single photon events can be digitized and visualized far above the read out noise level of the CCD that converts the intensified image to an electronic 2-D image. As a result, the read noise is also a non-factor, non-contributor to the experimental result.
The XR/MEGA-10Z™ is the first imaging product in the commercial marketplace to demonstrate effective read noise and dark count levels of zero. Another benefit of the dual MCP structure is a dramatic reduction of ion feedback noise, or what is sometimes referred to as "scintillation" noise, in a high gain image. Even at gains of 500K to 1000K, ion feedback is almost non-existent and the image is characterized by the photon statistics and not the spurious noise that is common to single MCP intensifiers when used at maximum gain.
Added features of the XR/MEGA-10Z™ are Peltier cooling of the CCD (for extended exposures/time lapse applications) and the exclusive ABF™ (Automatic Bright Field) feature that instantaneously adjusts photocathode gate time and intensifier gain to compensate for up to seven decades of light level change, allowing hands-off surveys of samples with a large variance in brightness and bright field imaging without the need for a second camera. The XR/MEGA-10Z™ is patent pending.
- Sensor Type: iCCD
- # Pixels (Width): 1380
- # Pixels (Height): 1024
- Pixel Size (Square): 6.47 um
- Peak Quantum Efficiency: 70 %
- Full Frame Rate: 15 fps
- Bit Depth: 12 bit
True photon limited imaging: Dark counts virtually eliminated by photocathode cooling
CCD cooling for integrations up to 60 sec.
High Quantum Efficiency: 40-50% Typical
Dual MCP: Light gains of up to 2 million
Video rates and faster for dynamic event capture
10 bit, mega-pixel resolution
Exclusive ABFTM/Automatic Bright Field technology
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