Author/Authors :
Basolo، نويسنده , , S. and Berar، نويسنده , , J.F. and Boudet، نويسنده , , N. and Breugnon، نويسنده , , P. and Chantepie، نويسنده , , B. and Clemens، نويسنده , , J.C. and Delpierre، نويسنده , , P. and Dinkespiler، نويسنده , , B. and Hustache-Ottini، نويسنده , , S. and Medjoubi، نويسنده , , K. and Ménouni، نويسنده , , M. and Morel، نويسنده , , C. and Pangaud، نويسنده , , P. and Vigeolas، نويسنده , , E.، نويسنده ,
Abstract :
A 20 kpixels CdTe sensor has been hybridized on XPAD3S CMOS photon-counting chips, forming a 19,200 pixels imaging device. P-type CdTe with rectifying contact has been employed. This sensor works in hole collection mode with a pulse shaping time of about 150 ns. Detector construction and operation are described, and first results obtained with 241Am source as well as diffraction images using an X-ray synchrotron beam are presented. Polarization effects are present, but remain at a very manageable level.
Keywords :
Pixel detector , XPAD3 , Photon counting , CdTe , Hole collection
