Inelastic Magnetic Neutron Scattering at ISIS

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BESAC Subpanel Review of IPNS and LANSCE/Lujan
Center Washington, D. C. December 11, 2000
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Introduction Ward Plummer Washington, D.
C. December 11, 2000
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Charge to the Committee
In September 1999, the Chair of BESAC, Geri
Richmond, charged by Martha Krebs, Director of
the DOE Office of Science to convene Subpanel to
review the Intense Pulsed Neutron Source (IPNS)
at ANL and the Manuel J. Lujan Neutron Scattering
Center at LANL Charge The first activity is a
review of the IPNS and MLNSC. As you know, BES
has begun the construction of the Spallation
Neutron Source (SNS) at Oak Ridge National
Laboratory and is upgrading the MLNSC jointly
with the Office of Defense Programs. When
commissioned in 2005, the SNS will be the worlds
premier spallation source for neutron scattering
research. However, during the interim and even
past the time of the SNS commissioning, IPNS and
MLNSC will be critical components of this
countrys capabilities in neutron scattering.
Therefore, I would like BESAC to review the
science and the user programs at IPNS and MLNSC.
The group that you assemble for this task should,
of course, contain experts in the sciences
enabled by neutron scattering, but it should also
contain members who will be able to address the
effectiveness of the user program user support
proposal review mechanisms availability,
dependability, and reliability and the vision
for the future of each facility. By analogy with
the Birgeneau study of the synchrotron radiation
light sources, the review should consider the
full range of activities at IPNS and MLNSC
regardless of whether they are supported by the
BES program. I would like to have this report by
July 2000. With the completion of this study and
that already under way for the electron beam
microscharacterization centers, BESAC will have
reviewed all of the major BES facilities. These
reviews represent an outstanding effort that is
recognized throughout the scientific community.
I want to thank and congratulate you for the
thorough and professional way in which BESAC has
conducted these reviews. Because of
circumstances at LANL (safety stand down, fire,
etc.), the review was delayed until the fall of
2000.
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Subpanel Members
Chair, Ward Plummer, Distinguished Professor,
The University of Tennessee Meigan Aronson,
Department of Physics, University of
Michigan Kent Blaisie, Department of Chemistry,
University of Pennsylvania Collin Broholm,
Department of Physics and Astronomy, Johns
Hopkins University Jack Crow, Director,
National High Magnetic Field Laboratory, Florida
State University Charles Duke, Vice President
and Senior Research Fellow, Xerox Research and
Technology Zach Fisk, Department of Physics,
Florida State University Stephen Lovesey, Head,
Condensed Matter Theory Division, Rutherford
Appleton Laboratory Toby Perring, ISIS,
Rutherford Appleton Laboratory Andrew Taylor,
Deputy Chief Executive Director, ISIS, Rutherford
Appleton Laboratory John Tranquada, Head,
Neutron Scattering Section, Department of
Physics, Brookhaven National Laboratory
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Agenda
Kickoff Meeting, October 1213, 2000,
Gaithersburg, Maryland Request for Information
from Directors of the Facilities, October 25,
2000 Site Visits LANL/LANSCE/Lujan Center,
November 1415, 2000 ANL/IPNS, November
1617, 2000 Report Preparation, November
18December 8, 2000 Presentation to BESAC,
December 11, 2000
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National Agenda
Truths Neutrons are good Reports Teal
-Schull Report on Neutron Research on Condensed
Matter (1977) Seitz-Eastman Report on Major
Facilities for Materials Research and Related
Disciplines (1984) Kohn Report on Neutron
Sources for Americas Future (1993) BESAC
Subpanel Report on Reactors, Spallation Sources,
and the Spallation Neutron Source (SNS)
(19951996) National Agenda Bring the
U.S. into a leadership position in the use of
neutrons for science, medicine, and national
defense The flagship of this endeavor will
be the 1.41B Spallation Neutron Source, which
will be commissioned in the summer of 2006 and
reach full power in 2008. Facts 1000 user
base in the U.S. 40005000 users in Europe
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Interpretation of the Charge
Charge The first activity is a review of the
IPNS and MLNSC. the SNS will be the worlds
premier spallation source for neutron scattering
research. However, during the interim and
even past the time of the SNS commissioning, IPNS
and MLNSC will be critical components of this
countrys capabilities in neutron scattering.
Therefore, I would like BESAC to review the
science and the user programs at IPNS and MLNSC.
The groupwill be able to address the
effectiveness of the user program user support
proposal review mechanisms availability,
dependability, and reliability and the vision
for the future of each facility. FUTURE IS
FROM NOW UNTIL 20062008!
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International Benchmark
History of peak fluxes for both neutron and
pulsed spallation sources
ISIS (200 kW) ?? ILL (58 MW)
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International Benchmark
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International Benchmark
Quote from Experiments in International
Benchmarking of U.S. Research Fields, Committee
on Science, Engineering, and Public Policy (NAS
Press, 2000)
The panel found that the key to the nations
leadership is the flexibility of the materials
science and engineering research enterprise, its
innovation system, and its intellectual
diversity. But the ability of the United States
to capitalize on its leadership opportunities
could be curtailed because of shifting federal
and industry priorities, a potential reduction in
access to foreign talent, and deteriorating
facilities of natural materials characterization.
Of particular concern is the lack of adequate
funding to modernize major research facilities in
the United States when facilities here are much
older than in other countries. State-of-the-art
facilities attract the world's leading
scientists, so excellent facilities often make
for award-winning research.
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General Overview of Findings
The Most Important thing these facilities can do
is to run reliably, build a user base, and do
good sciencetraining scientists to utilize the
unique instrumentation associated with a pulsed
spallation source. Thom Mason, Director,
Experimental Facilities Division, SNS
Findings It is imperative that every
spallation source in the U.S. is utilized to its
full potential to assure that a sufficiently
large and well-trained user community exists when
SNS is fully operational in 2008. It is
essential to substantially increase the neutron
user community in order to fully exploit the SNS.
This will not occur in a timely fashion without
an active program.