Overview

The ORCA II Dual Scan Cooled CCD Camera is newly designed to combine high resolution, high sensitivity measurement, and readout versatility.  The ORCA II has two independent clock rates:

• 1.25MHz clock rate for high precision imaging, achieving 3 to 5 electrons read-out noise
• 10 MHz clock readout for high frame rate imaging (up to 5.3 Hz)

In addition, various pixel formats are attainable  by adjusting binning or sub-array functions to achieve even faster frame rates.

The ORCA II incorporates an effective 1280 x 1024 pixel and progressive scan interline CCD eliminating the need for a mechanical shutter.  This permits high resolution and high speed measurement without the vibration often seen when using a mechanical shutter.   The combination of the hermetic vacuum sealing, and peltier cooling, with air radiation, enables the CCD chip to cool down to -40 to  -50 °C.  A high level of vacuum  keeps the temperature consistent for extended periods of time.  This suite of  features drastically reduces the dark current of the CCD chip, making the camera the ideal choice for high sensitivity scientific measurements  that require long exposure times.

AIA standard digital output ensures compatibility with a large selection of commercially available frame grabber boards.  Control commands common to the ORCA make it easy for the various commercially available software to be adapted for the ORCA II.

Features

Applications

Additional Information

(Modified 26-Feb-2003 - MMB)