Characterization results of the JUNGFRAU full scale readout ASIC
JOURNAL OF INSTRUMENTATION(2016)
摘要
The two-dimensional pixel detector JUNGFRAU is designed for high performance photon science applications at free electron lasers and synchrotron light sources. It is developed for the SwissFEL currently under construction at the Paul Scherrer Institut, Switzerland. The detector is a hybrid pixel detector with a charge integration readout ASIC characterized by single photon sensitivity and a low noise performance over a dynamic range of 10(4) 12 keV photons. Geometrically, a JUNGFRAU readout chip consists of 256x256 pixels of 75x75 mu m(2). The chips are bump bonded to 320 mu m thick silicon sensors. Arrays of 2x4 chips are tiled to form modules of 4x8 cm(2) area. Several multi-module systems with up to 16 Mpixels per system will be delivered to the two end stations at SwissFEL. The JUNGFRAU full scale readout ASIC and module design are presented along with characterization results of the first systems. Experiments from fluorescence X-ray, visible light illumination, and synchrotron irradiation are shown. The results include an electronic noise of similar to 50 electrons r.m.s., which enables single photon detection energies below 2 keV and a noise well below the Poisson statistical limit over the entire dynamic range. First imaging experiments are also shown.
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关键词
X-ray detectors,Pixelated detectors and associated VLSI electronics,Solid state detectors,Hybrid detectors
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