NDLI: Spatially correlated and coincidence detection of fission fragments with the pixel detector Timepix

Content Provider	IEEE Xplore Digital Library
Author	Granja, C. Kraus, V. Jakubek, J. Pospisil, S. Masek, P. Vykydal, Z. Platkevic, M. Kohout, Z. Kopatch, Y. Telezhnikov, S.A. Koster, U. Vacik, J. Tomandl, I.
Copyright Year	2010
Description	Author affiliation: Joint Institute for Nuclear Research (JINR) Dubna, Moscow Region, Russia (Kopatch, Y.; Telezhnikov, S.A.) \|\| Institute Laue Langevin (ILL), Grenoble, France (Koster, U.) \|\| Nuclear Physics Institute (NPI), Rez near Prague, Academy of Sciences of the Czech Republic (Vacik, J.; Tomandl, I.) \|\| Institute of Experimental and Applied Physics (IEAP) of the Czech Technical University (CTU) in Prague, Czech Republic (Granja, C.; Kraus, V.; Jakubek, J.; Pospisil, S.; Masek, P.; Vykydal, Z.; Platkevic, M.; Kohout, Z.)
Abstract	Charged-particle coincidence correlated measurements such as angular correlations between rare and main fission fragments measured with conventional detectors provide only partial and limited information (energy cutoff, narrow range of studied ion Z numbers). Many of these drawbacks arise from the standard solid state detectors used so far which can be solved simultaneously by usage of highly segmented single-quantum counting pixel detectors. The Timepix pixel device, which is equipped with energy and time sensitivity capability per pixel, provides high granularity, wide dynamic range and per pixel threshold. This detector operated with integrated USB-readout interfaces such as the USB 1.0 and FITPix devices and the data acquisition software tool Pixelman, both developed for the pixel detectors of the Medipix-family, enables a variety of instrumental configurations, visualization, real-time event-by-event selection as well as vacuum and portability of operation for flexible measurements on different targets and setups. These features combined with event track analysis provide enhanced signal to noise ratio with a high suppression of background and unwanted events. The detector provides multi-parameter information (position, energy and time) for basically all types of ionizing particles in a wide dynamic range of energy (pixel energy threshold ≈ 4 keV), interaction/arrival time (timepix clock step ≥ 100 ns) and position (pixel size = 55 μm). High selectivity is achieved by spatial and time correlation in the same sensor. In addition, several detectors can be run in coincidence. The open and close exposition (shutter) time as well as the readout DAQ can be fully synchronized. For this purpose, we have assembled a modular multi-parameter, tunable and extendable coincidence detector array system based on two and more Timepix devices which can be coupled with supplementary detectors (solid state ΔE detectors and/or ionization chambers) for enhanced ion selectivity. We describe the individual configurations and techniques together with the experiments carried out at several neutron beam/source facilities. We summarize the results and capabilities of application.
Starting Page	1578
Ending Page	1584
File Size	2029852
Page Count	7
File Format	PDF
ISBN	9781424491063
ISSN	10957863
e-ISBN	9781424491056
DOI	10.1109/NSSMIC.2010.5874042
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-10-30
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Detectors Pixel Universal Serial Bus Data acquisition Semiconductor device measurement Ions Synchronization
Content Type	Text
Resource Type	Article

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