Evaluation of KEK n-in-p planar pixel sensor structures for very high radiation environments with testbeam

Sep 2, 2013, 2:50 PM
Dahlia (B2F) (International Conference Center Hiroshima)

Dahlia (B2F)

International Conference Center Hiroshima

1-5 Nakajima-cho Naka-ku, Hiroshima Japan
POSTER Pixels (including CCD's) - Charged particle tracking Poster


Kazuki Motohashi (Tokyo Institute of Technology (JP))


Various structures for n-in-p planar pixel sensors have been developed at KEK in order to cope with the huge particle fluence in the upcoming LHC upgrades. Performances of the sensors with the different structures have been evaluated with testbeam. The n-in-p devices were connected by bump-bonding to the ATLAS Pixel front-end chip (FE-I4A) and characterized before and after the irradiation to $1\times10^{16}$ 1 MeV equivalent neutrons per square centimeter (n$_{eq}/$cm$^2$). Results of measurements with 120 GeV/c momentum pion beam at the CERN Super Proton Synchrotron (SPS) in September 2012 are presented.

Primary author

Kazuki Motohashi (Tokyo Institute of Technology (JP))


Christian Gallrapp (CERN) Osamu Jinnouchi (Tokyo Institute of Technology (JP)) Ryo Nagai (Tokyo Institute of Technology (JP)) Mr Ryuma Hori (KEK) Tomonori Kubota (Tokyo Institute of Technology (JP)) Yoshinobu Unno (High Energy Accelerator Research Organization (JP)) Yosuke Takubo (High Energy Accelerator Research Organization (JP))

Presentation materials