Neutron Sciences 2008 Annual Report - 17.79 MB - Spallation ...

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INTRODUCTION 2008 ANNUAL REPORT
been taking advantage of the unique capabilities of
CNCS and SNAP, and research results from each
instrument has already been published (see “Under
Extreme Pressure” and “Frustrated Spin Correlations
in Diluted Spin Ice” in the Science Highlights
section).
Sample environment capabilities were expanded by
commissioning of the world’s first actively shielded
magnet for neutron scattering—Slim SAM—opening
the door for a wide range of experiments (see
sidebar on page 7). The scientific scope of
several instruments has also been expanded
by development of a new Anger camera
system with a 1-mm position resolution. The
previously unavailable high resolution of
this camera permits new opportunities for
research on the molecular structure of solid
materials, or crystallography. In addition, a
contract was signed with GE Energy to market
the electronics and software associated
with a new award-winning neutron detector
system developed at SNS (see sidebar on
page 8).
A Wealth of Users
For our second full year of operations at
SNS and an upgraded HFIR, we hosted many
more users than expected. Our goals of 225
users at HFIR and 75 users at SNS were
surpassed with a final tally of 258 at HFIR
and 165 at SNS. Users came from a variety
of institutions all over the world, mainly from
academia, and produced an impressive array
of research results. More than 140 publications
were authored or coauthored by scientists
using SNS and HFIR and by Neutron
Sciences staff conducting research at other
facilities.
ORNL NEUTRON SCIENCES neutrons.ornl.gov
Users Jerod Wagman and Gregory Van Gastell of
McMaster University analyze the results of their
measurements on high-Tc cuprates at the HB-3
Triple-Axis Spectrometer at HFIR.
Jaime Fernandez-Baca (left),
leader of the Triple-Axis Group,
with user Hirosha Fukazawa.