formerly Hahn-Meitner-Institute and Advances in Neutron Radiography and Tomography J. Banhart currently: CSIRO Clayton N. Kardjilov Instrument scientist tomography A. Hilger PhD student I. Manke Head of tomography group M. Dawson Postdoc in tomography T. Kandemir Student M. Strobl Postdoc in neutron diffraction AUS TOMO II Workshop, Melbourne 13.-14.11.2008 Advances in neutron radiography and tomography 2 2 Hahn-Meitner Reactor 20 km BESSY II Location of Institute
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formerly
Hahn-Meitner-Institute
and
Advances in NeutronRadiography and TomographyJ. Banhart currently: CSIRO ClaytonN. Kardjilov Instrument scientist tomographyA. Hilger PhD studentI. Manke Head of tomography groupM. Dawson Postdoc in tomographyT. Kandemir StudentM. Strobl Postdoc in neutron diffraction
AUS TOMO II Workshop, Melbourne 13.-14.11.2008
Advances in neutron radiography and tomography
22
Hahn-MeitnerReactor
20 km
BESSY II
Location of Institute
AUS TOMO II Workshop, Melbourne 13.-14.11.2008
Advances in neutron radiography and tomography
3
Application Centre Tomographic Methods
Neutron tomography
X-ray tomography and microscopy
2 µm
Focused Ion Beam-Tomography
14x14x253nm3
3D atom probe
40 nm
Electron tomography
1 m10 mm0,1 mm1 µm10 nm1Å
AUS TOMO II Workshop, Melbourne 13.-14.11.2008
Advances in neutron radiography and tomography
4
Contents
� Neutron absorption imaging� principles� optimisation of beam and detection system
operating fuel cell applying realistic power profilesPEM fuel cell
14 cm L/D 167, ~ 108 n/cm 2s, ∆∆∆∆T = 10 s
liquid water accumulation ⇒ gas flow in the channels hinderedwater management: a major challenge for PEM fuel cells
AUS TOMO II Workshop, Melbourne 13.-14.11.2008
Advances in neutron radiography and tomography
Fuel cell: neutron tomogram of stopped triple-stack cell
AUS TOMO II Workshop, Melbourne 13.-14.11.2008
Advances in neutron radiography and tomography
Fuel cell: neutron tomogram of water in flowfield channe ls
I. Manke, C. Hartnig, N. Kardjilov, A. Hilger, J. B anhart et alQuasi-in situ neutron tomography on polymer electrolyte membrane fuel cell stacksApplied Physics Letters 90, 184101 (2007)
AUS TOMO II Workshop, Melbourne 13.-14.11.2008
Advances in neutron radiography and tomography
26
Neutron tomography: fuel sediments in combustion ch amber
2 cm
Fuel sediments
AUS TOMO II Workshop, Melbourne 13.-14.11.2008
Advances in neutron radiography and tomography
27
X-ray tomographyNeutron tomography
Glue between spheres Steel hollow spheres
Complementarity of neutrons and X-rays
AUS TOMO II Workshop, Melbourne 13.-14.11.2008
Advances in neutron radiography and tomography
28
Neutron tomography X-ray tomography
Highly absorbing regions: hydride remnants?
Complementarity of neutrons and X-rays
AUS TOMO II Workshop, Melbourne 13.-14.11.2008
Advances in neutron radiography and tomography
29
Partially dischargedca. 1,3V
Fully charged1,6V
Examples: battery discharge
Neutrontomography
X-raytomography
KOH, H2O
Steel container
H+I. Manke et al., Appl. Phys. Lett.90, 214102 (2007)
AUS TOMO II Workshop, Melbourne 13.-14.11.2008
Advances in neutron radiography and tomography
30
Beam monochromatisation
polychromaticbeam
monochromaticbeam
Double crystal monochromator: PCG crystals (mosaicity of 0.8°)
(3DXRD)9. Detectors for Synchrotron Tomography10. Fundamentals of Electron Tomography11. Applications of Electron Tomography12. Neutron Absorption Tomography13. Neutron Phase Contrast and Polarised
Neutron Tomography14. Neutron Refraction and Small-Angle