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| Home > In process > Percival soft X-ray CMOS Imager for Photon Science – Status and Prospects |
| Home > In process > Percival soft X-ray CMOS Imager for Photon Science – Status and Prospects |
| Journal Article | PUBDB-2026-01159 |
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2025
IOP Publ.
Bristol
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Please use a persistent id in citations: doi:10.1088/1742-6596/3010/1/012129
Abstract: Percival is a CMOS-based imager with 2 megapixels, also called P2M, designed for photon science experiments. The first generation of the P2M sensor showed some performance issues. Specifically, ADCs in full-speed operation mode are affected by crosstalk and show a non-linear and uncorrectable response. A firmware hack to the readout and data acquisition system has been introduced to partially overcome these effects, at the cost of limiting the frame rate to 83 Hz. Moreover, a non-uniform dark response of the sensor pixels is observed, explained by non-uniform bias currents across the chip: two opposite edges of the sensor cannot be digitized when applying biases that have the centre of the sensor operating normally. These issues are addressed in the re-submission of the chip. In this contribution, we present the current status of the detector and the first results from the re-designed sensor.
; Nationallizenz
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