SYMPOSIA PAPER Published: 01 January 1988

Developments in Beam Profiling with a CCD Area Array Detector


Measurements and calculations of the performance of a frame-transfer CCD area array sensor in a beam profiling system are presented. The measured dark current and photosensitivity pattern noise of the sensor are shown to be better than those of previously studied self-scanned imaging devices. Calculated modulation transfer functions agree with previous measurements, verifying that the CCD sensor should be able to adequately resolve spatial frequencies up to 50 mm-1. A logarithmic video amplifier was successfully interfaced with the CCD camera and an 8-bit image processor for the acquisition of laser beam images with improved contrast.

Author Information

O'Connell, RM
Ferreira, RJ
Stewart, AF
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Developed by Committee: F01
Pages: 128–136
DOI: 10.1520/STP24411S
ISBN-EB: 978-0-8031-5033-1
ISBN-13: 978-0-8031-4481-1