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Optimization of the noise performance of the AGIPD prototype chips
Paul-Scherrer-Institut (PSI), Villigen, Switzerland .
Deutsches Elektronensynchrotron (DESY), Hamburg, Germany.
Deutsches Elektronensynchrotron (DESY), Hamburg, Germany.
Paul-Scherrer-Institut (PSI), Villigen, Switzerland .
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2013 (English)In: Journal of Instrumentation, ISSN 1748-0221, E-ISSN 1748-0221, Vol. 8, no 10, Art. no. P10022- p.Article in journal (Refereed) Published
Abstract [en]

The charge integrating readout electronics AGIPD (adaptive gain integrating pixel detector) is a hybrid detector system developed for the European XFEL. It features a threefold dynamic gain switching to be able to resolve single photons and to cover a dynamic range of 104·12.4 keV photons. As a result of dynamic gain switching, single photon resolution will be achieved in the high gain stage, while the maximum dynamic range will be reached in the low gain stage. The specification to resolve single photons requires a signal-over-noise ratio of at least 10 for a single incoming photon with an energy of 12.4 keV. When using a silicon sensor, that translates to an equivalent noise charge of less than 343 e-. Several AGIPD prototype chips have been designed and characterized, particularly focusing on the noise performance. During the testing phase, the dominant noise sources were identified and the corresponding circuit blocks were improved in the subsequent ASICs. This paper reports on the procedures to identify the dominating noise sources, the optimization process of the circuit blocks and discusses the effect of the optimization on the noise performance.© 2013 IOP Publishing Ltd and Sissa Medialab srl.

Place, publisher, year, edition, pages
2013. Vol. 8, no 10, Art. no. P10022- p.
Keyword [en]
Instrumentation for FEL, Solid state detectors
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:miun:diva-20683DOI: 10.1088/1748-0221/8/10/P10022ISI: 000326930900046Scopus ID: 2-s2.0-84887089390Local ID: STCOAI: oai:DiVA.org:miun-20683DiVA: diva2:679046
Note

Art. No.: P10022

Available from: 2013-12-13 Created: 2013-12-13 Last updated: 2016-10-19Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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