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| Eliminating
NOx from diesel emissions |
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Argonne chemist Chris Marshall shows a new catalyst, developed by
Argonne and BP, to reduce nitrogen oxides from diesel engines. The
catalysts were developed to help reduce chemical plant emissions,
and researchers are also investigating their use in diesel automobile
engines. Argonne National Laboratory photo.
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(798 KB) |
| Last Updated: July 14,
2004 |
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| Gammasphere |
| Researchers at Argonne
are probing the very edges of nuclear stability - and beyond - with the
aid of a 12-ton gamma-ray "microscope" called Gammasphere.
A $20 million national traveling physics instrument, Gammasphere was
built to study the complex structure and behavior of nuclei by fusing
lighter nuclei into heavier ones and observing gamma rays - a form of
extremely high-energy light - emitted when the new nuclei's component
protons and neutrons settle into stable configurations. Argonne physicist
Kim Lister is at the center of the machine. Argonne National Laboratory
photo. |
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(3.1 MB) |
| Last Updated: July 14,
2004 |
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| TuffCell
testing |
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A critical measure of a fuel cell's usefulness is its power output at
various electrical loads when supplying fuel (anode gas) and oxidant
(cathode gas) to the cell. A new fuel cell developed at Argonne, called
TuffCell, provides mechanical strength, easy fabrication and increased
performance. Argonne chemist Laura Miller prepares the TuffCell sample
for testing. Chemist Cecile Rossignol works in the background. Argonne
National Laboratory photo.
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(851 KB) |
| Last Updated: July 14,
2004 |
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| TuffCell
bi-polar plates |
| Metallic bi-polar
plates make Argonne's TuffCell stronger and easier to fabricate. The
new fuel cell is four times tougher than traditional solid-oxide fuel
cells, and could be tested and ready for commercialization within five
years. Argonne National Laboratory photo. |
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(475 KB) |
| Last Updated: July
14, 2004 |
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| Gas
catcher cell |
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Argonne physicist Guy Savard examines a “gas catcher cell” developed
for the proposed Rare Isotope Accelerator. The cell provides a new way
to generate intense beams of short-lived, exotic nuclear isotopes for
basic research in nuclear physics and other sciences. The device separates
exotic ions that were produced in thin targets and brought to rest in
a catcher cell filled with pressurized helium. This new technology will
help give physicists high-quality exotic beams of any element in the
periodic table. The Rare Isotope Accelerator is one of the U.S. Department
of Energy's top-ranked projects necessary to keep the U.S. at the forefront
of scientific research. Argonne National Laboratory photo.
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(823 KB) |
| Last Updated: July
14, 2004 |
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| Atom
Trap Trace Analysis |
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A new technique developed at Argonne, called Atom Trap Trace Analysis,
or ATTA, is an ultrasensitive way to detect single atoms in a large sample.
The technique can help date older samples much more effectively than
carbon-14 dating. Chun-Yen Chen aligns the atom trap's optics. Argonne
National Laboratory photo.
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(447 KB) |
| Last Updated: July 14,
2004 |
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| Analyzing
stardust |
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University of Chicago researchers isolated individual particles (shown
in the test tube) of the Murchison meteorite (at right) that are unchanged
since their condensation from material ejected by a star. Argonne researchers
examined the isotopic and elemental composition of the grains, providing
detailed knowledge of stellar physics and cosmochemistry. Argonne National
Laboratory photo.
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(425 KB) |
| Last Updated: July 14,
2004 |
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