Delft in Europe Neutron & Positrons Oyster & the World
where are we? Oyster - HOR Neutrons and Positrons European Spallation Source
where are we? Oyster - HOR Neutrons and Positrons European Spallation Source
we are here!!
neutrons - positrons unique tools for exploring the matter at the micro and nanoscale
engineering materials energy neutrons positrons soft matter magnetism biology health
neutrons - positrons
reactor based positron beams Positrons: first reactor-based positron beam SNS J-PARC
reactor based positron beams Positrons: first reactor-based positron beam SNS J-PARC
reactor based positron beams Positrons: first reactor-based positron beam SNS J-PARC
neutrons - positrons motors textures radiography/tomography textures length scales [m] cells small angle scattering and reflectometry domains polymers diffraction magnetic structures charge densities nuclei nuclear physics
neutrons - positrons time scales [s] time resolved radiography reflectometry diffraction neutron spin echo spectroscopy moving motors domain wall dynamics dynamics of macromolecules backscattering rotations tunneling Time-of-Flight and triple axis spectroscopy high energy inelastic neutron scattering stoner excitations spin waves phonons Compton scattering
neutron production fission - reactors spallation unstable intermediate nucleus slow neutron capture of 235 U continuous sources except Dubna nuclei bombarded with high energy particles pulsed sources except PSI
evolution of the neutron flux source: ESS
the answer is optimum use of the neutrons delivered by the source excellence in instrumentation sophisticated experiments novel concepts
And in Delft? 2 MW reactor No cold source Tradition in methodological developments Excellence in novel instrumentation
where are we? Oyster - HOR Neutrons and Positrons European Spallation Source
Optimized Yield for Science, Technology and Education of Radiation
Optimized Yield for Science, Technology and Education of Radiation Compact core Increase of power to 3 MW
Optimized Yield for Science, Technology and Education of Radiation Cold Source at R2
Why Oyster? Compactation of Core - Higher Intensity Better statistics More sophisticated measurements Kinetic measurements Cold Source - Longer Wavelengths Longer Length Scales No Bragg scattering More scattering
HOR GKSS reactor shuts down in summer 2010
HOR GKSS reactor shuts down in summer 2010
Optimized Yield for Science, Technology and Education of Radiation GKSS cold source GKSS medium resolution SANS TOF powder diffractometer 500 K from TU Delft board 280 from R3
Optimized Yield for Science, Technology and Education of Radiation
Optimized Yield for Science, Technology and Education of Radiation Letters sent to ministries and decision makers Decisions do be taken Structures for OYSTER
Optimized Yield for Science, Technology and Education of Radiation Establish RID as a Dutch national facility within and besides the TU Delft example : FRM 2 in Munich be present in the community and in the media
where are we? Oyster - HOR Neutrons and Positrons European Spallation Source
Tradition in methodological developments
POSH Positron Source Extraction grids now separated from W foils holders Improved electrical insulation and mechanical construction
a neutron diffractometer for material science PEARL
a neutron diffractometer for material science PEARL
a neutron diffractometer for material science PEARL
a neutron diffractometer for material science PEARL
SESANS monochromator W.G. Bouwman et al., NIMA 586 (2008) 9 detector polarizer /2 rotator sample /2 rotator analyzer magnet I1 magnet 1
neutron reflectometry and structures of biological importance ROG @RID
Spallation Neutron Source ISIS (UK)
Spallation Neutron Source ISIS (UK)
total reflection for light Goos-Hänchen shift up to 2 μm prediction: I. Newton (~1700) experiment: F. Goos and H. Hänchen (1949)
Spallation Neutron Source ISIS (UK)
ISIS-TU Delft collaboration for LARMOR an innovative multipurpose instrument structure dynamics
where are we? Oyster - HOR Neutrons and Positrons European Spallation Source
GENNESYS: neutrons in 2009 Grand European initiative on Nanoscience and nanotechnology using Neutronand Synchrotron radiation Sources
GENNESYS: neutrons in 2009 Grand European initiative on Nanoscience and nanotechnology using Neutronand Synchrotron radiation Sources
GENNESYS: neutrons in 2009 Grand European initiative on Nanoscience and nanotechnology using Neutronand Synchrotron radiation Sources
GENNESYS: neutrons in 2009 Grand European initiative on Nanoscience and nanotechnology using Neutronand Synchrotron radiation Sources
and in the near future
and in the near future important role for smaller sources: education/training home base instrument development center of knowledge in north-west Europe
where are we going???
where are we going???