Inelastic Magnetic Neutron Scattering at ISIS

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Recommendations Ward Plummer Washington, D.
C. December 11, 2000
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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. IPNS is an extremely reliable source
with a talented and experienced staff. However,
the facilities (source and some instruments) are
in need of improvements to make them more
competitive and to maintain reliability. LANSCE/L
ujan Center has a competitive source, and the
facility could be world-class. However, the
governance is dysfunctional, and the management
scheme is not compatible with effective
stewardship and operation of a national user
facility.
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RecommendationsIPNS

• Immediately enhance activities at the IPNS
  facility
• The timely realization of the enhancement of the
  source, the instrument suite, and the level of
  scientific exploitation of IPNS are essential to
  the ongoing development of the user base in the
  ramp-up to the SNS. The Subpanels
  recommendations are
• Invest to maintain the excellent reliability
• Invest to enhance the IPNS source and
  instrumentation
• Expand operation of the user program to 30 weeks
  per year
• Strengthen scientific programs at ANL that
  develop the user base and scientific agenda for
  the SNS
• Explore the possibility of developing and
  operating first-class instruments at IPNS that
  can later be moved to SNS
• Deliverables increased visibility of neutron
  scattering in the materials research community,
  seeding a broad user base in academia (namely
  those cognizant of the value of neutron
  scattering techniques), building a new generation
  of instrument scientists, and the testing and
  operation of new instrument technologies for the
  SNS.
• Estimated cost is an additional 9M/year.

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IPNS Budget
Data Rate Gains from Instrument Enhancements
Proposed Budget for Enhancements
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IPNS Instruments
?
?
?
?
?
Now -- useful research tools
?World-Class Science
x 2
x 5
(x 32)
x 12
x 2
x 9
x 6
x 9
x 3
x 6
Recommendation ? competitive
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RecommendationsLANSCE/Lujan Center

• Restructure LANSCE/Lujan Center to deliver an
  internationally competitive user facility
• In order to render LANSCE/Lujan Center a viable
  user center in time to generate the needed impact
  for the SNS ramp-up in 20062008, the governance
  and management of LANSCE/Lujan Center must be
  fundamentally restructured by April 2001. The
  committee recommends implementation of the
  Cooperative Stewardship governance model as
  described in the National Research Council (NRC)
  1999 report on this topic which stated that
  Responsibility for design, construction,
  operation, maintenance, and upgrading of each
  facility core should rest with a single clearly
  identified federal agencythe steward.
• The desired deliverables are
• A single Steward of this facility must be
  appointed, incorporating all the different DOE
  offices and UC. The Steward is charged with
  single-point budget, policy, and priority
  responsibility.
• This Steward shall deliver an adequately funded
  actionable implementation plan for FY 2002,
  sustainable over the period 20022008, to
  generate a fully functional user facility,
  competitive with international benchmarks (e.g.,
  ISIS).
• The plan must specify a ramp-up schedule for
  LANSCE/Lujan to fully functional status by FY
  2003 in time to impact the SNS ramp-up in 2006.
• A fully functional neutron facility should have
  increased the LANSCE/Lujan user base to 1000 by
  2006.

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StewardshipLANSCE/Lujan Center
LANSCE/Lujan Center could be established as an
NNSA national user facility using a governance
model that maps directly from the recommendations
of the NAS Cooperative Stewardship report. The
UC system should have a major role in the
governance to maintain the proper balance between
internal Lab pressures from the Nuclear Weapons
side and external pressures from the RD
communities.
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Lujan Center Instruments
Now
Potential
?World Class Instrument
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RecommendationsExpanding the University Base
for Neutron Scattering

• Establish a program to expand the university
  base for neutron scattering
• An immediate injection of funds is recommended
  for development of an enhanced user community,
  poised to fully exploit the SNS on commissioning
  in 2006. The recommended mechanisms are
• Well-funded facility-based user programs
• Joint UniversityNeutron Scattering Facility
  partnerships
• Development of a National Agenda for Enhancement
  of Neutron Scattering Research in the U.S.
• Strengthening the National Laboratory Neutron
  Scattering Groups
• The desired deliverable is a three- to fourfold
  increase in the academic user base by the time
  SNS is functional.