Development and application of photosensitive device systems to studies of biological and organic materials Page: 3 of 27
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A) A prototype large area CCD x-ray detector was assembled and tested at CHESS. This
led into development work on a dedicated detector based on a 2048 x 2048 CCD.
B) Two new CCD-based x-ray detector designs, one based on a reducing image intensifier
and one based on a fiber-optic taper, were assembled, tested and put into use.
C) Ancillary x-ray detector components, including phosphor structures, intensifies, fiber
optics, software, CCDs and electronic components were designed, constructed, and/or
tested.
D) A comparative study of CCD detectors, image plates and film was performed.
E) Work on pixel array detectors was initiated.
F) Ancillary beamline and high-pressure instrumentation was developed for biomaterials
characterization.
G) Low-light level research was performed on color image intensification, lyoluminescence
and luminescence during polymerization.
H) Much biomembrane, biomaterials, and materials research was accomplished.
Reports of the accomplishments of the research performed under this grant for the
1/1/92-12/31/92 period are tabulated in section III, below, and have been published in
20 papers, 17 abstracts, 1 technical report, 4 undergraduate and two Ph.D theses; in
addition, 4 research papers, derived from the theses are in various stages of preparation
for submission. Copies of publications not submitted with earlier progress reports are
attached. Capsule summaries of the major research accomplishments are given, below.
The references listed below each subheading refer to papers and theses; consult the list of
abstracts for abstract information.
II) RESEARCH ACCOMPLISHMENTS
A) Large Format CCD Detector
References: Eikenberry et al, 1991; 1992.
Eikenberry et al (1991; 1992) describe the assembly and evaluation of a prototype
directly coupled large format (2048 X 2048) CCD detector for use at a storage ring source.
The detector was specifically designed to meet the stiff requirements of protein Laue diffrac-
tion. It consisted of a thin phosphor coupled to a thin fiber optic plate, which was in turn
liquid film coupled to an experimental CCD 55 mm across. The prototype was evaluated
by applications testing at the CHESS facility at Cornell University. The results were quite
spectacular: quantum limited operation was achieved simultaneously with spatial resolu-
tions better than 50 um. The detector was shown to yield better quality data than con-
temporaneously acquired storage phosphor images. The tests unequivocally demonstrated
that directly coupled large format CCD detectors are feasible and have the capability
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Gruner, S. M. & Reynolds, G. T. Development and application of photosensitive device systems to studies of biological and organic materials, report, May 15, 1992; United States. (https://digital.library.unt.edu/ark:/67531/metadc1072386/m1/3/: accessed April 25, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.