학술논문
Jungfraujoch: hardware-accelerated data-acquisition system for kilohertz pixel-array X-ray detectors.
Document Type
Article
Author
Source
Subject
*PHOTON counting
*PIXELS
*GRAPHICS processing units
*DETECTORS
*GATE array circuits
*X-rays
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Language
ISSN
0909-0495
Abstract
The JUNGFRAU 4-megapixel (4M) charge-integrating pixel-array detector, when operated at a full 2 kHz frame rate, streams data at a rate of 17 GB s-1. To operate this detector for macromolecular crystallography beamlines, a dataacquisition system called Jungfraujoch was developed. The system, running on a single server with field-programmable gate arrays and general-purpose graphics processing units, is capable of handling data produced by the JUNGFRAU 4M detector, including conversion of raw pixel readout to photon counts, compression and on-the-fly spot finding. It was also demonstrated that 30 GB s-1 can be handled in performance tests, indicating that the operation of even larger and faster detectors will be achievable in the future. The source code is available from a public repository. [ABSTRACT FROM AUTHOR]