P2M: A 2MPixel CMOS Image Sensor for Soft XRay Detection High brilliance synchrotrons and Free Electron Lasers (FELs) require high performing detector systems to realise their full potential. High dynamic range, low noise and high frame rate are all of great importance. In this paper we describe the P2M CMOS sensor, designed for soft Xray detection at such facilities. We refer to previous work on test devices demonstrating a noise of  5Me and quantum efficiency of u003e80% at 400eV (and with good sensitivity even below this value). Initial test results on the first Front Side Illuminated (FSI) 2 Megapixel device are also presented, and an outline of future work is described.

Design of HVCMOS Detectors in BCD Technology with Noise and Crosstalk Measurements This paper presents the design and implementation of a particle detector in a BipolarCMOSDMOS (BCD) 180 nm technology. The design has a substrate potential of xe2x80x94 50 V and supply voltage of 1.8 V. Size of the unit pixel sensor is  250times 50 mumathbfm2 . The chip consists of an array of  47times 6  pixels including the signal processing circuitry. The total chip area is  3.3 times 4.4 mathbfmm2 . The complete signal processing circuitry is hosted inside the diode sensor to achieve 100% fill factor. The chip consists of 106 inputoutput pads, including the pads for supplies viz. xe2x80x94 50 V, 0 V and 1.8 V. The measurement results are presented to validate the noise and crosstalk models of the designed detector. The comparison shows an average mismatch of 2.65  mumathbfV  for the crosstalk voltages in a range of 3000 to 7000 injected electrons. The circuit noise has an average mismatch of  1.23times 1010 mathbfV2mathbfHz  between the analytical and the measurement results for a frequency range of 100 kHz to 22 MHz. The analog processing circuitry provides a measured voltage gain of 33.3 dB at 100 kHz of input frequency.