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Instruments / Technical Area	Publication Details	Published	Actions
Detectors	The PERCIVAL detector: first user experiments J. Correa , M. Mehrjoo , R. Battistelli , F. Lehmkühler , A. Marras , C. B. Wunderer , T. Hirono , V. Felk , F. Krivan , S. Lange , I. Shevyakov , V. Vardanyan , M. Zimmer , M. Hoesch , K. Bagschik , N. Guerrini , B. Marsh , I. Sedgwick , G. Cautero , L. Stebel , D. Giuressi , R. H. Menk , A. Greer , T. Nicholls , W. Nichols , U. Pedersen , P. Shikhaliev , N. Tartoni , H. J. Hyun , S. H. Kim , S. Y. Park , K. S. Kim , F. Orsini , F. J. Iguaz , F. Büttner , B. Pfau , E. Plönjes , K. Kharitonov , M. Ruiz-Lopez , R. Pan , S. Gang , B. Keitel , H. Graafsma Journal Of Synchrotron Radiation 30, 242 - 250 DOI: 10.1107/S1600577522010347 Open Access Show Abstract ▼ Abstract: The PERCIVAL detector is a CMOS imager designed for the soft X-ray regime at photon sources. Although still in its final development phase, it has recently seen its first user experiments: ptychography at a free-electron laser, holographic imaging at a storage ring and preliminary tests on X-ray photon correlation spectroscopy. The detector performed remarkably well in terms of spatial resolution achievable in the sample plane, owing to its small pixel size, large active area and very large dynamic range; but also in terms of its frame rate, which is significantly faster than traditional CCDs. In particular, it is the combination of these features which makes PERCIVAL an attractive option for soft X-ray science.	Jan 2023
Detectors	Tristan - a 10 million pixel large area time resolved detector for synchrotron use David Omar , Giulio Crevatin , Alan Greer , Ian Horswell , Jonathan Spiers , Richard Plackett , Paul Booker , Gale Lockwood , Dan Beckett , Emily Galvin , John Lipp , Michelangelo Di Palo , Mark Warren , Scott Williams , Nicola Tartoni Ieee Transactions On Nuclear Science DOI: 10.1109/TNS.2022.3204064 Open Access Show Abstract ▼ Abstract: This paper describes the development of the Tristan 10M detector for time resolved synchrotron experiments. Tristan 10M has an unprecedented time resolution (ns time scale) over long duration continuous acquisition (days). The detector is constructed from an array of 160 Timepix3 readout ASIC (about 10 million pixels) flip chip bonded to 10 monolithic silicon sensors which enable it to cover an area large enough to effectively carry out crystallography experiments. The large array of ASICs resulted in a number of severe technical challenges that had to be overcome during the development of the detector. The minimization of the dead area between sensors required the development of a very challenging mechanical and electronic packaging. Such a packaging had to be able to route the large number of data and power lines within the footprint of a sensor, had to effectively sink the heat generated by the ASICs, and had to be able to position the sensors accurately. In addition, the packaging of the detector was designed to be scalable in consideration of possible future larger versions of this detector which added a further challenge. The data driven nature of Timepix3 and the sheer data volume produced by the array of ASICs required us to devise a dedicated hardware, firmware, and software data acquisition architecture. This architecture proved very effective during the commissioning of Tristan10M when time resolved crystallography experiments were carried out.	Sep 2022

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