| Large Surface X-Ray Pixel Detector (2002) | |||||||||||||||
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| Ray Pixel Detector for Crystallography Delpierre Berar Blanquart Caillot Clemens Mouget Abstract For rays diffraction experiments the required dynamic range challenge The signal ranges usually over more than six orders magnitude meet this requirement and reduce the readout time with respect the commonly used CCD camera dedicated hybrid pixel detector under development have designed new counting chip with pixel sizes The expected counting rate per pixel and continuous readout with time stamping will allow dynamic range for x bit counter each pixel and bit counter per pixel the readout boards This chip has been submitted for fabrication and under test First results this chip will presented first step small detector being built using DELPHI LEP CERN silicon array diodes which have good efficiency for collecting ray between and keV After the electrical tests the performances this ray detector will measured the ESRF beam line Grenoble France scheduled next December this prototype performs expected large array cm such detectors could built RAY IMAGING HEP experiments have very large number pixels hundreds millions but small number hit pixels few hundreds this case sparse data readout mandatory rays imaging more than the pixels are hit then the sparse readout useless HEP have few hits per image and large image readout rate the contrary rays imaging have very large number hits per image and therefore not fast image readout rate The main specification for HEP fast sparse readout while | |||||||||||||||
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