Lens-Coupled CCD Detector for X-ray Crystallography

An X-ray crystallography detector (Blue-1) has been built based upon a Fairchild 486 back-illuminated CCD and a custom lens system designed by Optics One Inc. The advantages of our Blue-1 lens system over more conventional fiber-optic tapers are: lower noise and higher efficiency; improved point spr...

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Bibliographic Details
Published in:2006 IEEE Nuclear Science Symposium Conference Record 2006-11, Vol.2, p.729-734
Main Authors: Madden, T.J., McGuigan, W., Molitsky, M.J., Naday, I., McArthur, A., Westbrook, E.M.
Format: Article
Language:English
Subjects:
Charge coupled devices
Crystallography
Lenses
Optical design
Optical distortion
Optical noise
Optical signal processing
Timing
X-ray detection
X-ray detectors
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Summary:An X-ray crystallography detector (Blue-1) has been built based upon a Fairchild 486 back-illuminated CCD and a custom lens system designed by Optics One Inc. The advantages of our Blue-1 lens system over more conventional fiber-optic tapers are: lower noise and higher efficiency; improved point spread function; negligible spatial distortion; and lack of "chicken-wire" patterns. Also, the engineering is simpler because the CCD is not bonded to the fiber-optic taper. A unique mechanical design has been employed to accurately focus the image on the CCD. The detector software is based on MATLAB and takes advantage of its powerful imaging and signal processing libraries. The CCD timing can be updated on the fly by using a "CCD controller language" to specify timing.
ISSN:1082-3654
0018-9499
2577-0829
DOI:10.1109/NSSMIC.2006.355958