Dr G R Davis, BSc, PhD
Senior Lecturer
Biography
Degree: BSc(Eng.) Hons. (1st class), 1980, Electrical and Electronic Engineering,
Queen Mary College, University of London.
PhD: 1984 Electrical and Electronic Engineering,
Queen Mary College, University of London.
Supervisor Dr W.F. Fincham, clinical work supervised by Dr M. Swash.Title: "The Design and Application of an Instrument for Electromyographic Signal Processing."
Previous posts:
Lecturer in Dept of Biophysics in Relation to Dentistry* August 1993 - August 1999
The Royal London School of Medicine and Dentistry, Queen Mary and Westfield College.
*Before November 1995, when this new department was formed, in the Department of Child Dental Health, London Hospital Medical College.
Research Assistant in the Department of Child Dental Health. September 1988 - July 1993. The London Hospital Medical College.
Lecturer II in Electronics and Mathematics. September 1987 – August 1988.
Newham Community College.
Research Assistant in the Department of Neurology. April 1984 - August 1987. The London Hospital.
Publications:
Key Publications
The effect of linear interpolation of the filtered projections on image noise in x-ray computed tomography. Davis GR. J. X-ray Sci. Technol. 1994, 4, 191-199.
Analytical algorithm for the generation of polygonal projection data for tomographic reconstruction. Davis GR. Nucl. Instr. Meth. Phys. Res. A, 1996, 382, 548-552.
Faster tomographic fan beam back projection using Cartesian axes pre projection. Davis GR. Nucl. Instr. Meth. Phys. Res. A, 1998, 410, 329-334.
Modelling tomographic cone-beam projection data from a polyhedral phantom. Measurement Science and Technology. Davis GR. 2002, 13, 1336 - 1340.
Explicit control of image noise and error properties in cone-beam microtomography using dual concentric circular source loci. G.R. Davis. Nucl. Inst. Meth. A. 2005, 547, 679-685.
Artefacts in X-ray microtomography of materials. Davis GR and Elliott JC, 2006, Mat. Sci. Tech, 22, 1011 – 1018.
X-ray microtomography scanner using time-delay integration for elimination of ring artefacts in the reconstructed image. Davis GR, Elliott JC. Nucl. Instr. Meth. Phys. Res. A 1997, 394, 157 162.
An analysis of biological hard tissues using the tomographic reconstruction error formula. Davis GR, Munshi P, Elliott JC. J. X-ray Sci. Technol. 1996, 6, 63-76.
Microtomography of bones and teeth. Davis GR, Wong FSL. Physiol. Meas. 1996, 17, 121-146. [Invited, refereed review]
Jitter correction: A computer algorithm for reduction of the velocity recovery function artefact. Davis GR, Ingram DA, Fincham WF, Swash M, Schwartz M. Muscle and Nerve 1988, 11, 534-539.
Publications since 2001
Preparation and characterisation of controlled porosity alginate hydrogels made via a simulaneous micelle templating and internal gelation process. S. Partap, A. Muthutantri, I.U. Rehman, G.R. Davis and J.A. Darr, J. Mat. Sci., (in press).
Non-destructive studies of tissue-engineered phalanges by magnetic resonance microscopy and X-ray microtomography. Potter, K; Sweet, DE; Anderson, P; Davis, GR; Isogai, N; Asamura, S; Kusuhara, H; Landis, WJ. 2006. BONE 38 (3): 350-358.
Three-dimensional study of human dental fissure enamel by synchrotron X-ray microtomography. Dowker SEP, Elliott JC, Davis GR, Wilson RM, Cloetens P. 2006. Eur J Oral Sci, 114 (Suppl. 1): 333-359.
Microtomographic Characterisation of Porosity and its Influence on Fatigue Crack Growth. Li, P., Lee, P.D., Lindley, T.C., Maijer, D.M., Davis, G.R. and Elliott JC, 2006, J. X-ray Adv. Eng. Mat. 8 (6), 476-9.
Artefacts in X-ray microtomography of materials. Davis GR and Elliott JC, 2006, Mat. Sci. Tech, 22, 1011 – 1018.
MicroCT (microtomography) quantification of microstructure related to macroscopic behaviour Part 1 B Fatigue crack closure measured in situ in AA 2090 compact tension. Ignatiev KI, Davis GR, Elliott JC, Stock SR, 2006, Mat. Sci. Tech, 1025 - 1037.
X-ray microtomographic studies of novel radio-opaque polymeric materials for dental apllications, Anderson P, Ahmed Y, Patel MP, Davis GR, Braden M. 2006, Mat. Sci. Tech, 22, 1094 - 1097.
Dentinal carious lesion in three dimensions. F.S.L. Wong, N.S. Willmott & G.R. Davis, International Journal of Paediatric Dentistry, 2006;16:419-423.
Earliest known carnivoran auditory bulla and support for a recent origin of crown-group carnivore (Eutheria, Mammalia). P.D. Polly, G.D. Wesley-Hunt, R.E. Heinrich, G.R. Davis and P. Houde. Palaeontology, 49:5, 2006, 1019-1027.
Davis G.R. and Elliott J.C., “Scintillator to CCD coupling in X-ray microtomography,” in Developments in X-ray Tomography V, edited by Ulrich Bonse, Proc. Of SPIE Vol. 6318, 631817, (2006).
Dentin exposure in tooth preparations for porcelain veneers: A pilot study. Cherukara, GP; Dent, MC; Davis, GR; Seymour, KG; Zou, LF; Samarawickrama, DYD. 2005. JOURNAL OF PROSTHETIC DENTISTRY 94 (5): 414-420.
Acidic demineralization of apatites studied by scanning X-ray microradiography and microtomography. Elliott, JC; Bollet-Quivogne, FRG; Anderson, P; Dowker, SEP; Wilson, RM; Davis, GR. 2005. MINERALOGICAL MAGAZINE 69 (5): 643-652.
Explicit control of image noise and error properties in cone-beam microtomography using dual concentric circular source loci. G.R. Davis. Nucl. Inst. Meth. A. 2005, 547, 679-685.
Plasticity and damage in aluminum syntactic foams deformed under dynamic and quasi static conditions. D.K. Balcha, J.G. O=Dwyer, G.R. Davis, C.M. Cady, G.T. Gray III, David C. Dunanda. Materials Science and Engineering A 391 (2005) 408-417.
Synchrotron X-Ray Microtomographic Investigation of Mineral Concentrations at Micrometre Scale in Sound and Carious Enamel. S.E.P. Dowker, J.C. Elliott, G.R. Davis, R.M. Wilson, P. Cloetens, 2004, Caries Research 38, 514-522..
Davis G.R. and Elliott J.C., Aspects of X-ray microtomography equipment design, Proceedings of SPIE, 2004, 5535, 182 B 190.
X Ray microtomographic study of mineral concentration distribution in deciduous enamel. F.S.L Wong, P. Anderson, H. Fan, G.R. Davis. Archives of Oral Biology 2004, 49/11, 937 943.
3D X ray microscopic study of the extent of variations in enamel density in 1 st permanent molars with idiopathic enamel hypomineralisation. J.M. Fearne , P. Anderson , G.R. Davis. Br Dent J 194, 634 638, 2004.
Longitudinal study of the three dimensional development of subsurface enamel lesions during in vitro demineralisation. Dowker SE, Elliott JC, Davis GR, Wassif HS. Caries Res. 2003 Jul Aug;37(4):237 45.
Sequential 3D X ray microtomographic measurement of enamel and dentine ablation by an Er:YAG laser. Mercer CE, Anderson P, Davis GR. Br Dent J. 2003, 194(2):99 104.
Davis G.R. and Elliott J.C. High definition X-ray microtomography using a conventional impact X-ray source. J. Phys. IV France, 2003, 104, 131 - 134.
Characterisation of void and reinforcement distributions in a metal matrix composite by X-ray edge-contrast microtomography. Justice I, Derby B, Davis G, Anderson P and Elliott J. Scripta Materialia, 2003, 48, 1259 - 1264.
Modelling tomographic cone-beam projection data from a polyhedral phantom. Measurement Science and Technology. Davis GR. 2002, 13, 1336 - 1340.
Modulation of mastication during experimental loosening of complete dentures. Muller F, Heath MR, Ferman AM, Davis GR. Int J Prosthodont. 2002, 15(6):553 8.
Non destructive 3D structural studies by X ray microtomography. G.R. Davis, S.E.P. Dowker, J.C. Elliott, P. Anderson, H.S. Wassif, A. Boyde and S.R. Stock. Advances in X-ray Analysis, 2002, 45, 485-490.
Stock SR, Ignatiev K, Davis GR, Elliott JC, Fezzaa K and Lee, W-K. Fatigue cracks in aluminum samples studied with X-ray phase contrast imaging and with absorption microtomography. Advances in X-ray Analysis, 2002, 45, 123 - 126.
Research interests:
My principal research interest is the development and application of X-ray microtomography, an advanced 3D imaging technique.
Examples of research funding:
G.R. Davis and J.C. Elliott, High definition X-ray microtomography and advanced visualisation techniques for information recovery from unopenable historical documents, EPSRC, £764,280, Feb 2009 for 4 years.