Title: Overview of the ARCS Project Plan: The View at One Year
1Overview of the ARCS Project PlanThe View at
One Year
ARCS IDT Meeting Lujan Center, LANL
September 30, 2002
- Doug Abernathy
- ARCS Instrument Scientist
SNS Instrument Systems
Argonne/Oak Ridge
2ARCS -- The Project -- Key People and Places
Brent Fultz -- Caltech (project leader,
coordinator, aligner of personnel) Doug
Abernathy -- Caltech and Argonne (hardware
project manager) Michael Aivazis -- Caltech
(software project manager) Hardware Engineering
Argonne (Robb Williams) Hardware Construction
-- Oak Ridge Software -- Caltech
3ARCS -- The Project -- Management
4Bifurcation of ARCS
- Full instrument had no contingency funds
- Canadian CFI program prompted interest in a
- second high-energy chopper instrument
- International class facility should have a
general - purpose and a magnetism instrument
Presently
CNCS (Eilt50 meV) 2 resolution 140o at 3 m
SEQUOIA 1 resolution 60o at 5.5 m
ARCS 2 resolution 140o at 3 m
5 a wide Angular-Range Chopper
Spectrometer
Intended for study of atomic-scale dynamics in
the thermal and epithermal range with single
crystal capability.
Moderator decoupled poisoned water Beam
line 18 Source-sample 13.6 m Sample-detector 3.0m
IDT headed by Brent Fultz Scientist Doug
Abernathy
- Lattice dynamics
- Entropy and the effects of vibrational modes on
stability and phase transitions of solids - Excitations in disordered materials effects of
nanoscale features on vibrational entropy and
thermodynamic stability - Equations of state from measurements of the
phonon density of states as a function of
temperature and pressure - Phonons in correlated-electron materials
coupling of lattice and electronic degrees of
freedom in high Tc, heavy-fermion and mixed
valence materials - Magnetic dynamics
- High temperature superconductivity
- Crystal field spectroscopy
- Low dimensional systems 1D quantum magnets and
low-dimensional conductors - Magnetism in actinide materials
- Heavy fermion magnetism and superconductivity
- Metal-insulator transitions in oxides
- Chemical Physics
- Deep inelastic neutron scattering studies of
hydrogen - Characterization of novel materials
6ARCS Instrument Overview
Moderator
Shutter
Guides
Choppers
Sample
Detector Array
7DOE Review March 2002
- The ARCS Baseline Review Committee included
experts in instruments and in project management
because no previous reviews had been held. - Important recommendations
- Develop a Project Execution Plan and Memorandum
of Agreement with SNS to solidify the project
management structure - Major instrumental uncertainties need to be
address - Operation of detectors in vacuum
- Shielding needed for personnel dose rates and
backgrounds
8Key dates in schedules as presented 3/02
- Early Late
- Project start 9/01 9/01
- Detector in vacuum decision 9/02 9/02
- Guide procurement 9/02 9/02
- First detector module procurement 8/03 9/05
- Vessel procurement 9/03 10/03
- Target inserts needed 6/04 6/04
- Target Building occupancy date 6/04 6/04
- Start installation 6/04 6/04
- End detector module assembly and
testing 5/05 7/06 - SNS project early completion 12/05 12/05
- End installation 1/06 8/06
- Project end 9/06 9/06
9SEQUOIA a proposal for high-resolution
Principal Investigator Steve Nagler Instrument
Scientist Garrett Granroth Early identification
should allow much better optimization of design
for ARCS
10(No Transcript)
11Costs
- Methods for cost reporting and tracking of the
baseline schedule are being developed at Argonne
with SNS personnel - Preliminary costs through August 2002 for the
instrument effort - Caltech Hardware for prototype testing
- Costs 89,600
- Commitments 23,900
- Oak Ridge Personnel (instrument scientist
shielding calculations) - Costs 176,300
- Argonne Personnel (engineer designer
technician) - Costs 307,200
- Current budget through August
- Materials 90,700 Actual - 113,500
- Work 444,900 Actual - 483,500