Synchrotron tests of 3D Medipix2 and TimePix X-Ray Detectors

Aaron Mac Raighne, K. C. Akiba, L. Alianelli, M. Artuso, R. Bates, F. Bayer, J. Buytaert, P. Collins, M. Crossley, L. Eklund, C. Fleta, A. Gallas, M. Gandelman, M. Gersabeck, E. N. Gimenez, V. Gligorov, T. Huse, M. John, L. F. Llin, M. LozanoD. Maneuski, J. Marchal, T. Michel, M. Nicol, G. Pellegrini, D. E. Perira, R. Plackett, V. O'Shea, C. Parkes, E. Rodrigues, K. J.S. Sawhney, N. Tartoni, P. Vazquez

Research output: Chapter in Book/Entry/PoemConference contribution

4 Scopus citations


In this article we report on the use micro-focus synchrotron X-ray radiation and pion beams to compare the detection efficiencies and charge sharing properties of novel 3D detectors to that of the current planar technology. Detector substrates are bump-bonded to the Medipx2 and Timepix chips. 55μm square pixel maps of the detection efficiencies have been produced using X-ray and MIP beams. For X-rays, a drop of 3-4% detection efficiency over the pixel area was found due to the central electrode. The corner electrodes show no degradation in efficiency compared to that of the planar device. For MIPs a drop of 0.5% in efficiency due to the central electrode was observed. Evidence of a considerable reduction in charge sharing in the 3D detectors compared to the planar devices is also shown.

Original languageEnglish (US)
Title of host publication2009 IEEE Nuclear Science Symposium Conference Record, NSS/MIC 2009
Number of pages6
StatePublished - 2009
Event2009 IEEE Nuclear Science Symposium Conference Record, NSS/MIC 2009 - Orlando, FL, United States
Duration: Oct 25 2009Oct 31 2009

Publication series

NameIEEE Nuclear Science Symposium Conference Record
ISSN (Print)1095-7863


Other2009 IEEE Nuclear Science Symposium Conference Record, NSS/MIC 2009
Country/TerritoryUnited States
CityOrlando, FL

ASJC Scopus subject areas

  • Radiation
  • Nuclear and High Energy Physics
  • Radiology Nuclear Medicine and imaging


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