Interline Ccd Operation; Figure 12-2: Typical Common Acquisition Settings Expander - Teledyne Princeton Instruments PI-MAX 3 System Manual

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Figure 12-2: Typical Common Acquisition Settings Expander

Finally, it is recommended that the intensifier have a fast decay phosphor (P46). Since
DIF operation involves acquiring images in rapid succession, phosphor persistence can
become the limiting factor in the rate of image acquisition.

12.2 Interline CCD Operation

An interline CCD consists of alternating columns of light sensitive pixels and storage
pixels. The light sensitive columns are referred to as the active area and acquire the
image. The storage pixels are called the masked area and store the image in the dark
while it is read out. With this architecture, the CCD can acquire a second image while
the first image is being read out, unlike a standard CCD, which must read out the first
image before the second acquisition can begin. The ability of the interline CCD to
quickly transfer an image under the masked columns and hold it there makes DIF
possible. As soon as the first image is acquired, it is shifted under the masked area and
held. The second exposure begins and is held in the active area until the first image has
been read out.
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PI-MAX 3 System Manual
NOTE:
As of this writing, PI-MAX3: 1024i is the only PI-MAX3 that
supports DIF mode.
Issue 2