21
9. CONTROLLING THE CAMERA (XCAP)
The sections below will give information on using each control of the Eagle XV, giving a
description on how to use each control parameter and their effect on the camera’s
performance. The software used to illustrate the camera controls is XCAP.
9.1 Gain and Exposure Time
The gain and exposure can be controlled in the
"Gain”
tab. By default, high preamp gain will
be enabled, offering the lowest noise. If you are imaging with a higher intensity signal, high
preamp gain can be disabled. The exposure time and frame rate controls are shown under
every tab in the GUI.
There is an exposure time user input box and slider bar to control the exposure time. The
theoretical maximum exposure is 7.6 hours. In practice, the maximum exposure will be
limited by the amount of background radiation events and at warmer CCD temperatures the
dark current of the device.
These controls are illustrated in Figure 15.
Figure 15: Gain and Exposure Controls.