Now showing items 1-5 of 5

    • Pixel sensitivity variation in a CdTe-Medipix2 detector using poly-energetic x-rays 

      Aamir, R.; Lansley, S.P.; Zainon, R.; Fiederle, M.; Fauler, A.; Greiffenberg, D.; Butler, P.H.; Butler, A.P.H. (University of Canterbury. Electrical and Computer EngineeringUniversity of Canterbury. Physics and Astronomy, 2011)
      We have a 1-mm-thick cadmium telluride (CdTe) sensor bump-bonded to a Medipix2 readout chip. This detector has been characterized using a poly-energetic x-ray beam. Open beam images (i.e. without an attenuating specimen ...
    • Reducing beam hardening effects and metal artefacts in spectral CT using Medipix3RX 

      Rajendran, K; Walsh, M. F.; de Ruiter, N. J. A.; Chernoglazov, A. I.; Panta, R. K.; Butler, P. H.; Bell, S. T.; Woodfield, T. B. F.; Tredinnick, J.; Healy, J. L.; Bateman, C. J.; Aamir, R.; Doesburg, R. M. N.; Renaud, P. F.; Gieseg, S. P.; Smithies, D. J.; Mohr, J. L.; Mandalika, V. B. H.; Opie, A. M. T.; Cook, N. J.; Ronaldson, J. P.; Nik, S. J.; Atharifard, A.; Clyne, M.; Bones, P. J.; Bartneck, C.; Grasset, R.; Schleich, N.; Billinghurst, M.; Butler, A. P. H.; Anderson, N. G. (2013-11-21)
      Studies on beam hardening and metal artefact reduction using Medipix All Resolution System (MARS) spectral scanner were carried out. Four datasets are provided - titanium phantom, titanium scaffold, magnesium scaffold and ...
    • Reducing beam hardening effects and metal artefacts in spectral CT using Medipix3RX 

      Rajendran, K; Walsh, M. F.; de Ruiter, N. J. A.; Chernoglazov, A. I.; Panta, R. K.; Butler, P. H.; Bell, S. T.; Woodfield, T. B. F.; Tredinnick, J.; Healy, J. L.; Bateman, C. J.; Aamir, R.; Doesburg, R. M. N.; Renaud, P. F.; Gieseg, S. P.; Smithies, D. J.; Mohr, J. L.; Mandalika, V. B. H.; Opie, A. M. T.; Cook, N. J.; Ronaldson, J. P.; Nik, S. J.; Atharifard, A.; Clyne, M.; Bones, P. J.; Bartneck, C.; Grasset, R.; Schleich, N.; Billinghurst, M.; Butler, A. P. H.; Anderson, N. G. (2014-02-05)
      This paper discusses methods for reducing beam hardening effects and metal artefacts using spectral x-ray information in biomaterial samples. A small-animal spectral scanner was operated in the 15 to 80 keV x-ray energy ...
    • Reducing beam hardening effects and metal artefacts using Medipix3RX: With applications from biomaterial science 

      Rajendran, K.; Walsh, M.F.; de Ruiter, N.J.A.; Chernoglazov, A.I.; Panta, R.K.; Butler, A.P.H.; Butler, P.H.; Bell, S.T.; Anderson, N.G.; Woodfield, T.B.F.; Tredinnick, S.J.; Healy, J.L.; Bateman, C.J.; Aamir, R.; Doesburg, R.M.N.; Renaud, P.F.; Gieseg, S.P.; Smithies, D.J.; Mohr, J.L.; Mandalika, V.B.H.; Opie, A.M.T.; Cook, N.J.; Ronaldson, J.P.; Nik, S.J.; Atharifard, A.; Clyne, M.; Bones, P.J.; Bartneck, C.; Grasset, R.; Schleich, N.; Billinghurst, M. (University of Canterbury. Biological SciencesUniversity of Canterbury. Computer Science and Software EngineeringUniversity of Canterbury. Electrical and Computer EngineeringUniversity of Canterbury. Human Interface Technology LaboratoryUniversity of Canterbury. Mathematics and StatisticsUniversity of Canterbury. Mechanical EngineeringUniversity of Canterbury. Physics and AstronomyUniversity of Canterbury. Biomolecular Interaction Centre, 2014)
      This paper discusses methods for reducing beam hardening effects using spectral data for biomaterial applications. A small-animal spectral scanner operating in the diagnostic energy range was used. We investigate the use ...
    • Using Algebraic Reconstruction in Computed Tomography 

      Tang, N.D.; de Ruiter, N.; Mohr, J.L.; Butler, A.P.H.; Aamir, R. (University of Canterbury. Physics and Astronomy, 2012)
      Spectral Computed Tomography (spectral CT) is a newly emerging, medical imaging modality. It extends CT by acquiring multiple datasets over different x-ray energy bins. As the x-ray absorption of materials is energy ...