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WEP047 |
Development of Beam Monitoring Pixel Sensor and High Speed X-Ray Detector Based on 56000 Frames Per Second Readout Chip | |
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It has been more than ten years since HPAD (Hybrid Pixel Array Detectors) had been widely utilized as X-ray diffraction and imaging detectors. Due to limitations of the fabrication process, most HPADs are made with monolithic sensor and tiled readout ICs. In conventional HPAD, there were so-called ¿inter-chip pixels¿ on the edges of readout ICs. These inter-chip pixels have 1.5 times or even wider width and/or height than non-inter-chip pixels. We have successfully dealt with this inter-chip pixel problem by use of re-distribution layer on the Silicon sensor. So, in our new detector, non-uniformity in a single sensor module is eliminated. This new detector is designed based on UFXC32k IC* designed by AGH University of Science and Technology and named XSPA Detector Series. XSPA Series are aiming not only for X-ray imaging but also for time-resolved X-ray measurements. Thanks to its high count-rate and fast operation capability combined with our high data throughput backend circuits, XSPA Series are capable of up to 56 kfps full-frame operation. We are working on beam position and intensity monitor based on the XSPA Series. Results from its preliminary tests will be presented.
* P. Grybos et al., IEEE Trans. Nucl. Sci., vol. 63, no. 2, Apr. 2016. ** Y. Nakaye, et al., J. Synchrotron Rad. vol. 28, Mar. 2021. *** Q. Zhang et al., J. Synchrotron Rad., vol. 25, Jun. 2018. |
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