 At this year’s Fort Lauderdale M&M show, Olympus Soft Imaging Solutions has launched the Cantega G2, the 2nd generation Olympus Soft Imaging Solutions 2k x 2k, bottom-mounted CCD TEM camera for all TEM brands.
The fiber-optically coupled and water-cooled Cantega G2 sets new image benchmarks regarding resolution, uniformity and sensitivity for bottom-mounted TEM cameras. In order to match customers' requirements, the Cantega G2 is equipped with an optimized YAG scintillator. On customer request, OSIS supplies a phosphor scintillator as well. 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 a uniquely high quantum efficiency.
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 for searching throughout the sample, making it attractively convenient to find features of interest and to adjust microscope parameters. At any resolution, this camera provides superb dynamic range and sensitivity.
Cantega G2 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 as well. Combining a dark current of < 0.6 -e/p/s, a full well capacity of about 250K electrons, 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 viewing screen.
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.
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