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The VIPIC1 readout integrated circuit was designed for X-ray Photon Correlation Spectroscopy experiments that are typically performed using mono-energetic (8 keV) X-rays at a synchrotron radiation facility. The device is a pixel detector with sparsification and parallel readout from the groups, yielding high timing resolution. Recent improvements in bonding alignment of wafers resulted in deliveries...
Hybrid pixel detectors working in single photon counting mode are very attractive solution for new experiments as their functionality increases and the single pixel size is getting smaller. This is possible due to new deep sub-micron technologies, which allows making smaller devices. However, making smaller devices has drawbacks, one of which is that matching of smaller transistors decreases, resulting...
We report on the design of a prototype IC called FPDR90 dedicated for readout of hybrid pixel semiconductor detectors used for X-ray imaging applications. The FPDR90 has dimensions of 4 mm × 4 mm and was designed in CMOS 90 nm technology with 9 metal layers. The core of the IC is a matrix of 40×32 pixels with 100 µm ×100 µm pixel size. Each pixel contains a fast charge sensitive amplifier (CSA), a...
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