PWL 18201

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LANSCE Status and Progress Update
Presentation to Basic Energy Sciences Advisory
Committee August 2, 2001 Paul W. Lisowski Los
Alamos National Laboratory LANSCE Division
Director
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Outline

• Realizing the full potential of LANSCE
• Progress to Date
• 2001 Run Cycle
• Target Moderator
• Summary

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LANSCE is a Unique Multidisciplinary Science
Facility
800 MeV Proton Linac
Isotope Production Facility (Under Construction)
Weapons Neutron Research
Manual Lujan Jr. Neutron Scattering Center
Proton Radiography
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LANL Goal Deliver Neutrons and Protons Safely
and Reliably for All LANSCE Users

• Appoint new LANSCE management team
• Engage other scientific user facilities to
  benchmark and improve LANSCE performance
• Develop and implement effective governance model
  involving NNSA, SC, NE, LANL and user communities
• Ensure appropriate support and oversight,
  informed by independent review of bottom-up cost
  estimate
• Pause BES development of new Lujan instruments to
  focus on operation of the user program
• Increase LDRD investment in Lujan science program
• Maintain strong communication with LANSCE User
  Group (LUG)

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LANL Plan to Realize the Full Potential of LANSCE
(1)

• Management team in place
• Benchmarking of scientific user facilities is
  underway
• Visits to NIST and ANL completed, planning
  underway for fall trips
• Governance model developed and being implemented
• Incorporates the ideas and expertise of the
  LANSCE User Group and many at DOE, NNSA and other
  facilities
• Held initial meeting in April, 2001
• Maureen McCarthy NNSA Chair, Pat Dehmer DOE-SC,
  Dave Crandall NNSA-DP, Owen Lowe DOE-NE and
  others attended
• MOA ready for signature
• Next meeting planned for September, 2001
• LANSCE User Facility Cost Estimate review (K.
  Berkner, Chair)
• Underway at Los Alamos

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LANL Plan to Realize the Full Potential of LANSCE
(2)

• Pause in BES Spectrometer Development
• Funding reprogrammed
• LANSCE science planning
• Neutron scattering plan based on user input
  completed by Alan Hurd and others
• Will be incorporated into overall LANSCE
  Strategic Plan with a first draft in September
• A LANSCE planning workshop involving the broader
  user community is planned for the next LUG
  meeting, August 12 -14, 2001
• Strategic Plan will be integrated into NNSA/DP
  5-year planning process
• Additional LDRD investments in Lujan science
  secured for FY2001

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DOE has Clarified its Governance of LANSCE

• Assign Defense Programs as the Organizational
  entity with corporate responsibility and
  accountability for strategic integration of all
  three program offices using LANSCE. This
  approach applies both to the short-term objective
  of facilitating IPF construction and the
  long-term goal of reliable accelerator
  operations.from Memorandum from the Deputy
  Secretary of Energy to General Gordon 12/21/2000
• Single Point Accountability
• Single Line of Authority
• Participation of all stakeholders
• Authority and Responsibility chain includes
  accountability for those controlling the
  resources

DOE
NNSA/DP
NE
SC
NNSA/DP LANSCE Program Manager

LANL
LANSCE
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Highest Priority Establish a Long-Term
Sustainable Program Serving All Users Safely,
Reliably Predictably

• Completed outage 20 days ahead of schedule and
  started user program on schedule July 1, 2001
• Proposals arrived March 12, 2001 for PAC review
• Proposals evaluated and instrument time scheduled
• User Facility Production started July 1, 2001
• User Program will run through December 23, 2001-
  a total of 2544 hours for Lujan Center
• Run safely, reliably and predictably for all
  users
• Implement the governance, management, and science
  plans to realize the full potential of LANSCE and
  the Lujan Center

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All Major Accelerator Outage Tasks Completed on
Schedule

• Interim Safety Assessment Document (ISAD)
• MPF-963 Cooling Tower tie-in
• Nuclear Facility Maintenance
• IPF Shield Wall Construction
• IPF Transition Region Modifications
• Accelerator Maintenance
• Facility Maintenance
• Accelerator Start-up

LANSCE Web Page Outage Display
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Lujan Center Received 152 Proposals for the 2001
Run Cycle
Number of Proposals Received152 Defense Non-Def
ense FDS 0 10 HIPD 4 34 LQD 6 18 NPD 10 2
7 SCD 0 6 SPEAR 5 28 FP11A 0 3 FP14 1 1 FP
5 2 4 Average Oversubscription rate is 21

106 Days Available
In User Program
Not supported in user program for FY01 will
run if support becomes available Nuclear
physics beam lines located in Lujan Center, FP11A
shared with neutron scattering program
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LANSCE has Implemented a Standard 28-Day
Operating Cycle with Contingency
LANSCE Operating Schedule for CY2001
May
June
July
August
September
October
November
December
Turn-on
Contingency For Turn-on
1L Maintenance
Lujan/ WNR User Program
Prad, NRS, .
Reserve or Contingency
2002 Outage

• Incorporates formal change control and
  contingency allocation process

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We have Identified Funding, Developed a Detailed
Project Schedule, and Plan to Install a
Switchyard Kicker in 2003

• Five-fold increase in beam available to Proton
  Radiography program
• 20 more beam time scheduled for Lujan Center
  and WNR
• Makes an Ultra-Cold Neutron program possible
• Make changeovers between Line X and Line D
  operations more efficient, increasing beam
  availability
• Stable accelerator operation at fixed beam
  intensity yields more reliable beam delivery for
  all programs

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We are Greatly Improving our Scattering
Instrument Suite with New Construction and
Upgrades

• HIPPO Received first beam on sample, July 7,
  2001
• SMARTS Turntable, slits, and controls readied,
  July 2001
• First beam expected August 2001
• PROTEIN First beam on sample December 2000
• Alignment improvement studies underway
• New BNL detector received July 27, 2001
• NPD Upgrade Design for new detector banks for
  pair-density functions
• underway with
  University of Pennsylvania
• PHAROS New wide-angle detector bank installed
• New data acquisition electronics installed
• Chopper reworked and balanced
• ASTERIX First beam December 2000
• First data June 2001
• IN500 Thimble installation April 2000
• Ballistic guide design completed and procurement
  order
• placed

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Beam Delivery to the User Program has been
Reliable thus far, but Current is Limited by the
Target Moderator System
93.2
75 mA
56 mA
7/1
7/22
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We have Funding and are Developing a Plan and
Schedule to Replace the Lujan Target Moderator if
Necessary

• Target Moderator Reflector system is experiencing
  overheating of the lower lead reflector
• Potential problem with lead reflector cooling
• Thermal cycling may have separated cooling coils
  from lead
• Analysis to determine maximum current without
  melting lead underway
• The current Target will last through this run
  cycle
• Operating conservatively until we understand the
  problem
• 60 mA limit at present gives stable heat load
• Attempting to develop a work-around to allow
  higher current
• Funding and parts to assemble the spare are in
  hand assembly planning has begun
• Develop an engineering solution to the lead
  heating problem
• Redesign and fabricate lower reflector
• Develop a plan for possible installation during
  the next outage
• Will install during the next outage if no
  solution is found

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Some of the Exciting Experiments that are Planned
and Underway at the Lujan Center
Tony Cheetham, UCSB Tonya Kuhl, UCSD Anne
Mayes, MIT Takeshi Egami, UPenn Ersan
Ustundag, CalTech Wayne Goodman, Texas
AM Dave Mao, Carnegie Institute

• HIPD In-Situ Synthesis of Bismuth Transition
  Metal Perovskites, Structure and Magnetic
  Ordering
• SPEAR Molecular Density and Orientation in
  Confined Polymer Layers Under Static and Dynamic
  (flow) Conditions
• LQD Chain Statistics of Polystyrene Dissolved in
  Lower Molecular Weight Polystyrene
• NPD Local Structure of Superconducting Cuprates
  with Stripes
• FP5 Solid State Reaction Studies
• FDS Identification of CHx Intermediates Formed
  Over Surface During Methane Decomposition Over
  Supported Catalysts
• SCD In-situ Neutron Single-crystal Diffraction
  Study on Ice II, III, V, VI and IX at High
  Pressure

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Summary

• DOE, NNSA, the LANL Director, and LANL Senior
  Management have made a commitment for success at
  LANSCE
• We are responding to the BESAC recommendations
  for governance
• LANSCE Division completed the outage and started
  up 20 days earlier than scheduled
• User program started as promised on July 1, 2001
• Operating with high reliability at less than full
  power
• Funding for kicker magnet in place and project
  underway
• Funding to build replacement target for Lujan
  Center in place
• To be installed at next outage
• We are succeeding at the activities needed to
  operate the LANSCE user facilities safely and
  reliably