Projects / Programmes source: ARIS

Development of solid state detectors for particle physics experiments

Research activity

Code Science Field Subfield
1.02.06  Natural sciences and mathematics  Physics  Experimental physics of elementary particles 

Code Science Field
P002  Natural sciences and mathematics  Physics 

Code Science Field
1.03  Natural Sciences  Physical sciences 
Experimental particle physics, super Large Hadron Collider, the ATLAS detector upgrade, silicon tracker detectors, microstrip detectors, pixel detectors, radiation damage
Evaluation (rules)
source: COBISS
Researchers (15)
no. Code Name and surname Research area Role Period No. of publicationsNo. of publications
1.  25636  PhD Matej Batič  Physics  Researcher  2011 - 2012  23 
2.  09081  PhD Vladimir Cindro  Physics  Head  2011 - 2014  1,570 
3.  29519  PhD Rok Dolenec  Physics  Researcher  2014  86 
4.  12092  PhD Boštjan Golob  Physics  Researcher  2013 - 2014  780 
5.  18277  PhD Andrej Gorišek  Physics  Researcher  2011 - 2014  1,331 
6.  18278  PhD Borut Paul Kerševan  Physics  Researcher  2011 - 2014  1,328 
7.  15642  PhD Gregor Kramberger  Physics  Researcher  2011 - 2014  1,471 
8.  08725  PhD Peter Križan  Physics  Researcher  2013 - 2014  1,002 
9.  12313  PhD Igor Mandić  Physics  Researcher  2011 - 2014  1,465 
10.  04763  PhD Marko Mikuž  Physics  Researcher  2011 - 2014  1,616 
11.  16354  PhD Rok Pestotnik  Physics  Researcher  2011 - 2014  703 
12.  21552  PhD Andrej Studen  Physics  Researcher  2011 - 2014  129 
13.  28721  MSc Aleš Svetek  Physics  Researcher  2013 - 2014  22 
14.  31336  Ruben Verheyden  Physics  Researcher  2012  10 
15.  11985  PhD Marko Zavrtanik  Physics  Researcher  2011 - 2014  1,024 
Organisations (2)
no. Code Research organisation City Registration number No. of publicationsNo. of publications
1.  0106  Jožef Stefan Institute  Ljubljana  5051606000  90,058 
2.  1554  University of Ljubljana, Faculty of Mathematics and Physics  Ljubljana  1627007  33,832 
Upgrades of existing  detectors built at the Large Hadron Collider (LHC) are foreseen in a next decade together with the upgrade of collider itself.  They require the development of detectors that could efficiently detect particles even at significantly increased radiation levels compared to current detectors. The rate of particles passing through detectors will also increase due to increased luminosity. The proposed project supports the planned upgrade of the ATLAS detector with a new tracker and the results will be also important for the upgrade of CMS detector. Project will be carried out within the framework  of RD50 collaboration,  which provides support for these two experiments.  Installation of a new layer of silicon detector  called Inner B-layer Detector (IBL) is planned in ATLAS (phase 0) in 2013. This will improve the tracking of charged particles and compensate for the loss of efficiency of the current pixel detector. In the next phase (Phase 1), which is expected to be done around the year 2016 the whole pixel detector will be replaced. The long-term goal is to replace the entire semiconductor tracker of charged particles with the new (around 2020 – Phase 2). Semiconductor tracker will be expanded into the volume currently occupied by the gas detector, TRT (Transition Radiation Tracker). Gas detectors in this volume  would  become inefficient due to increased rates of particles and will be replaced with silicon microstrip detectors. Radiation and rate load will be the highest in the inner part closest to the interaction point. There are three options for the innermost (pixel) parts: planar, 3D silicon detectors and diamond detectors.  Choice of sensors will depend on their efficiency to detect charged particles, the possibility of coupling to appropriate reading electronics, their mechanical and thermal properties and the price. The proposed project provides support to the options which are using silicon sensors in Phase 1 and 2.  It will be focused on measuring and improving the efficiency of charged particles detection as well as on understanding the processes important for creation of signals.
Significance for science
Results of measurements performed in this project will have impact on the design and construction of detectors which will be installed during upgrade of High Luminosity Large Hadron Collider (HL-LHC). ATLAS, one out of for large collaborations building detector systems around LHC, has 174 institutions from 38 countries. This represents common effort of different countries from all over the world in experimental particle physics. New inner tracker (ITK) is the most important part of detector upgrade. It will allow efficient detection of tracks in the high rate environment caused by increase of collider luminosity.
Significance for the country
Slovenia joined to the effort of international community to develop detectors that will survive harsh environment of High Luminosity Linear Hadron Collider that will become operational around 2022. Work is performed within international collaborations which allows efficient exchange of information and data. ATLAS and RD50 collaborations have regular workshops where results of projects are reported.
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