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Staff Profile- Stewart

Physical Scientist / Research Fellow

stewart

Stewart Midgley B.Sc. (hons), MSc., PhD.
Phone +61 (3) 9905 9350 FAX +61 (3) 9905 3637  Email: stewart.midgley@sync.monash.edu.au 

Research interests
Stewart is a trained Medical Physicist who has worked in teaching hospitals providing scientific and technical support to Nuclear Medicine, Positron Emission Tomography, Radiology and Radiotherapy departments. His academic qualifications include a BSc. (hons) in Physics (1984) and an MSc. in Medical Physics (1988) where he wrote a thesis on micro cone beam tomography.

He was awarded a PhD in X-ray Physics at Monash University (2002) and has since been engaged in the commercialisation of x-ray based non-destructive testing methods with industrial partners and and scientific research organisations.

Current research is directed towards applied x-ray physics

  • development of gas filled and solid state photon counting detectors, and low cost data acquisition modules. 
  • understanding the relationship between diagnostic energy CT numbers and mega-voltage tissue interaction parameters. 
  • reconstruction techniques for computed tomography.
  • the registration of multi-modality 3D data sets.
  • development of new compounds for clinical administration as radiographic contrast media.
  • exploiting emerging methods of materials analysis based upon elastic and inelastic x-ray scattering. 
  • liasing with industry in the design and operation of x-ray based non-destructive testing instrumentation.

SELECTED PUBLICATIONS
Midgley SM 2006, Angular width of a narrow beam for X-ray linear attenuation coefficient measurements, Rad Phys Chem, 2006, 75, 945-953. 

Midgley SM 2006, Energy resolution for x-ray linear attenuation coefficient measurements, Rad Phys Chem, 2006, 75, 936-944.

R.A.Lewis, T.E. Beveridge, J.E.Gillam and S.Midgley 2005, Will new detector technologies transform medical imaging?, Nucl Instrum Meth A submitted Oct 2005

Midgley S, A.Berry, N.Benci, S.Morton, D.Phillips, P.Smith, S.Tjoa and R.Lewis 2005 Hybrid pixel detector development for medical radiography, Nucl Instrum Meth A submitted sept 2005, accepted for publication 07/02/06

Midgley, S. M., Measurements of the X-ray linear attenuation coefficient for low atomic number materials at 32 keV to 66 keV and at 140 keV Rad. Phys. Chem. 72 (4) 525-535 (2005).

Midgley, S. M., Materials analysis using X-ray linear attenuation coefficient measurements at four photon energies Phys. Med. Biol. 50, 4139-4157(2005).

Midgley, S. M. , A parameterisation scheme for the X-ray linear attenuation coefficient and energy absorption coefficient, Phys. Med. Biol. 49, 307-325 (2004). Midgley S M Millar R M and Dudson J Feas