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CANTEGA G2 - 2k x 2k ON-AXIS TEM CCD CAMERA SOLUTION
Key features
KeenView
  • Up to 2048 x 2048 pixels
  • Up to 6 fps @ binning 4 (viewing / high speed mode)
  • Water cooled to -10° C @ 18°C water temperature from TEM
  • Fiber-optically coupled
  • 14 bit
  • YAG scintillator
Summary
The scintillator and CCD chip are coupled through a fiber-optic in this high-end, 14-bit TEM camera system. This innovative technology ensures exceptional sensitivity and tremendous signal yield as well as an extraordinary signal-to-noise ratio by cooling down to as much as - 10°C. The Cantega G2 supports multiple frame rates of up to 6 fps @ binning. The partial read-out technology enables focusing directly onscreen, which makes the Cantega G2 the ideal choice in all biomed/life science and materials science applications. The camera offers exposure times ranging from 1ms to 100 seconds, and its outstanding sensitivity can be further increased via the binning modes (2x, 4x and 8x). The specially developed YAG scintillator is optimized for application and customer requirements
Description Specifications
The Cantega G2 is the 2nd generation Olympus Soft Imaging Solutions 2k x 2k, bottom-mounted CCD TEM camera for all TEM brands. This fiber-optically coupled 14-bit camera sets new image benchmarks regarding resolution, uniformity and sensitivity for bottom-mounted TEM cameras. The Cantega G2 s equipped with an optimized YAG scintillator for increased resolution.
The Cantega G2 is mounted under the TEM column at the on-axis position. Data is transferred to the PC via a dedicated controller and interface. The high dynamic resolution makes the Cantega G2 an obvious choice for acquiring high-resolution images for both biomedical and materials science applications, while the deep cooling reduced noise and improves the quality of images acquired with long exposure times and/or weak signals. The total integration of the camera into iTEM, the TEM imaging platform, means that the acquired images can be processed, evaluated, archived and documented – immediately and with the greatest convenience.
CCD Chip
The highly sensitive CCD chip provides 2048 x 2048 pixel resolution with a 14-bit dynamic range. With a pixel size of 14 µm x 14 µm, the full frame CCD offers an active area of 28.7 mm x 28.7 mm. The CCD sensor possesses an extremely high quantum efficiency.
Binning
Binning is supported by the Cantega G2. Users can select modes of 1x, 2x, 4x and 8x binning. This way sensitivity can be increased above the already high level supplied by the CCD in full resolution, or the frame rae can be increased.
Frame rates
The Cantega G2 supports different frame rates. In the 5 MHz mode the cameras offers about 6 frames per second at binning 4. The high quality 2 MHz mode supports 14 bits and offers 3 frames per second at binning 8. A partial read-out mode can be used, making it convenient to adjust microscope parameters. At any resolution, this camera provides superb dynamic range and sensitivity.
Cooling
Noise, known as “dark current“, is generally introduced into an image when the CCD chip is not cooled to a sufficiently low temperature,. This thermal noise is not a problem with the Cantega G2, however. The CCD chip is cooled by water-cooling to -10° C (with 18°C TEM water temperature), resulting in an extremely high signal-to-noise ratio
Variable exposure times
CantegaG2 offers extremely low exposure times (as little as 1 ms and up to 100 s), making acquisition viable with intense illumination and with images of very low intensity
Fiber optics
The Cantega G2 camera system couples the scintillator to the CCD chip using unique fiber optics. This innovative approach gives the user an attractive price/performance advantage. In conjunction with the highly sensitive CCD chip and the optimized scintillator, this ensures high sensitivity and efficiency, as well as an unsurpassed signal-to-noise ratio
High Sensitivity
Combining a dark current of < 0.6 e-/s, a full well capacity of about 250K, a read-out noise of about 8 e, and it’s low temperature, the high sensitivity of the Cantega G2 allows the observation of samples on the computer monitor at beam intensities so low they prohibit any image on the TEM view screen.
Real-time functions
Integration of the Cantega G2 with iTEM, Olympus Soft Imaging Solutions TEM imaging platform, ensures real-time shading correction, intensity histograms, auto contrast adjustment and Fast Fourier Transformations during image acquisition
Integration
Integration of the camera into iTEM also provides functions such as labeling, processing, archiving, analyzing and report generation. Photographic quality printouts can be obtained virtually seconds after acquisition – without the darkroom
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