On the way to neutron scattering at 40 T

1
On the way to neutron scattering at 40 T

• Report from this workshop
• Discussions with NSF/DOE/SNS
• Letter of Intent to SNS
• Conceptual design project proposal
• Conceptual design phase
• Full proposal
• Construction
• Charge and spin localized structure in optimally
  doped high Tc

2
First Step workshop report

• Hard condensed matter
• High Tc (Dai, Lake, Y. S. Lee)
• Model magnets (Broholm, Dai, Enderle, Zaliznyak)
• Correlated metals (Maple, Canfield, Broholm)
• Charge lattice and spin degrees of freedom in
  oxides (Dai, Lee)
• Artificially structured magnets (Velthuis,
  Fritz,Fitzimmons)
• Thin films structures
• Granular and other systems
• Metallurgy (Ludtka)
• micro structure and phase composition
• Biology
• Polarizing nuclei for structure determination
• Chemistry
• Molecular magnets (Lake)
• Polarized beam diffraction for spin density
  determination (Zaliznyak)
• Atomic scale determination of Hydrogen locations
  in solids (Zaliznyak)

3
First step workshop report

• A paragraph describing spectacular science
  enabled by 40 T neutron scattering
• If applicable an example of such science at lower
  fields
• A tentative column in Kents table for Magnet
  neutron requirements
• Send this to Frank Klose ASAP and before May 30

4
Neutron instrumentation requirements
Types of measurements
Inelastic
Q range and resol
E range and resol
Atomic scale diffraction
Q range and resol
SANS?
Reflectometry?
Types of samples
Single crystal
Powder?
SANS?
Thin films?
Proton polarization for biological samples?
5
Magnet requirements
Max sample size
Conditions
Temperature range
Orientation capabilities (how many axes?)
Polarization analysis?
Time dependent effects?
Other?
Field
Magnitude
Direction relative to incident beam
Split coil vs solenoid?

Access angles
Split coil
Solenoid
Sample/sample environment size