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Studies on implementation of pellet tracking in hadron physics experiments
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
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2014 (English)In: Meson 2014 - 13th International Workshop on Production, Properties and Interaction of Mesons, 2014, Vol. 81, 06008Conference paper, Published paper (Refereed)
Abstract [en]

A system for optical tracking of frozen hydrogen microsphere targets (pellets) has been designed. It is intended for the upcoming hadron physics experiment PANDA at FAIR, Darmstadt, Germany. With such a tracking system one can reconstruct the positions of the individual pellets at the time of a hadronic interaction in the offline event analysis. This gives information on the position of the primary interaction vertex with an accuracy of a few 100 mu m, which is very useful e.g. for reconstruction of charged particle tracks and secondary vertices and for background suppression. A study has been done at the WASA detector setup (Forschungszentrum Julich, Germany) to check the possibility of classification of hadronic events as originating in pellets or in background. The study has been done based on the instantaneous rate a Long Range TDC which was used to determine if a pellet was present in the accelerator beam region. It was clearly shown that it is possible to distinguish the two event classes. Also, an experience was gained with operation of two synchronized systems operating in different time scales, as it will also be the case with the optical pellet tracking.

Place, publisher, year, edition, pages
2014. Vol. 81, 06008
Series
EPJ Web of Conferences, ISSN 2100-014X
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:uu:diva-252479DOI: 10.1051/epjconf/20148106008ISI: 000351440900108OAI: oai:DiVA.org:uu-252479DiVA: diva2:810790
Conference
13th International Workshop on Production, Properties and Interaction of Mesons (MESON), MAY 29-JUN 03, 2014, Cracow, POLAND
Available from: 2015-05-08 Created: 2015-05-07 Last updated: 2015-05-08Bibliographically approved

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Pyszniak, AndrzejCalén, HansFransson, Kjell E. I.Johansson, TordLöfgren, JohanWolke, Magnus

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