This mount is required for mating an Andor Technology CCD Detector (such as DV-401) to the output port. This is a manually adjustable mount that allows the Andor Technology detector to be moved forward and backwards, and tilted left to right, such that the sensor can be aligned to the spectrograph's focal plane. This mount can be mated to any Sciencetech spectrographs except for the 8030 which does not support Andor Technology Detectors. A slit at the output port is not required for this option. Optional detector plane alignment performed at the factory is available at additional charge.

Angular Tilt
The output focal plane is actually on a slight left/right angular tilt. The amount of tilt depends on the spectrograph model and is generally greater for smaller focal length models. It also varies according to the spectral region of interest, the spectral range of interest, and also the grating being used. For larger monochromators/spectrographs like the 9040, this angular tilt is typically 1-2°. For example, it is 1.68° at 550nm. For standard size monochromators/spectrographs like the 9055, this angular tilt is greater, typically 4-6°. For example, it is 4.0° for 450-6300nm, 5.5° for 200-350nm, and 6.4° for 350-700nm. The beauty of an adjustable tilt detector mount is the ability to match the tilt angle to the spectral region of interest.

When Is Adjustable Tilting Recommended?
In most spectrograph use, a fixed CDD wedge is good enough as the spectral region of interest is usually fixed and the angular tolerance is quite high thus allowing a fixed wedge to be used. If there is more than one spectral region of interest and they are far apart from another or spans over two gratings, several fixed wedge mounts can be purchased as an alternative to this adjustable wedge mount. This tilt angle is usually not that critical due to the high tolerance, but can become critical when viewing an extreme portion of the spectral region. This usually occurs in scanning spectrograph mode, when the turret is rotated to an extreme angular position to cover an extreme spectral position. In such cases where a wide portion of the spectrum is required by a scanning spectrograph, then this adjustable CCD mount is recommended.