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Timepix3: first measurements and characterization of a hybrid-pixel detector working in event driven mode
Mid Sweden University, Faculty of Science, Technology and Media, Department of Electronics Design. CERN, CH-1211 Geneva 23, Switzerland.. (Sensible Things that Communicate)
CERN, CH-1211 Geneva 23, Switzerland..
CERN, CH-1211 Geneva 23, Switzerland..
CERN, CH-1211 Geneva 23, Switzerland..
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2015 (English)In: Journal of Instrumentation, ISSN 1748-0221, E-ISSN 1748-0221, Vol. 10, C01039Article in journal (Refereed) Published
Resource type
Text
Abstract [en]

Timepix3 is a hybrid pixel detector readout chip. It features a data driven readout mode where the chip sends out a data packet containing pixel coordinate, time over threshold and time of arrival immediately after the hit is processed by the pixel. The maximum hit rate is 40 Mhits/cm(2)/s with a minimum time step in the arrival time measurement of 1.56 ns. The pixel matrix consist of 256 x 256 square pixels at a 55 m m pitch and the pixel front end noise is 61 e(-) RMS. In this paper we present the first radiation measurements with Timepix3 bump bonded to a 300 m m thick silicon sensor. The chip is calibrated per pixel, using internal test pulses and the calibration is verified using X-ray fluorescence. The energy resolution, threshold dispersion and gain dispersion is measured. The energy resolution in time over threshold mode under normal operation conditions is 4.07 keV FWHM at 59.5 keV. At 10.5 keV an energy resolution of 0.72 keV FWHM was achieved in photon counting mode and in time over threshold mode, by optimizing the energy response, we achieved a 1.38 keV FWHM. We also investigate the time walk and present first results on using the time information for track reconstruction.

Place, publisher, year, edition, pages
2015. Vol. 10, C01039
Keyword [en]
Solid state detectors, X-ray detectors, Hybrid detectors
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:miun:diva-26550DOI: 10.1088/1748-0221/10/01/C01039ISI: 000362261900026Scopus ID: 2-s2.0-84943415877Local ID: STCOAI: oai:DiVA.org:miun-26550DiVA: diva2:883198
Available from: 2015-12-16 Created: 2015-12-16 Last updated: 2016-12-19Bibliographically approved
In thesis
1. Hybrid pixel detectors: Characterization and optimization
Open this publication in new window or tab >>Hybrid pixel detectors: Characterization and optimization
2015 (English)Doctoral thesis, comprehensive summary (Other academic)
Place, publisher, year, edition, pages
Sundsvall: Mid Sweden University, 2015. 209 p.
Series
Mid Sweden University doctoral thesis, ISSN 1652-893X ; 228
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:miun:diva-26794 (URN)STC (Local ID)978-91-88025-37-1 (ISBN)STC (Archive number)STC (OAI)
Public defence
2015-09-08, 13:00
Supervisors
Available from: 2016-01-04 Created: 2016-01-04 Last updated: 2016-12-23Bibliographically approved

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