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STRIP-PET: a novel detector concept for the TOF-PET scanner  [PDF]
P. Moskal,T. Bednarski,P. Bia?as,M. Ciszewska,E. Czerwiński,A. Heczko,M. Kajetanowicz,?. Kap?on,A. Kochanowski,G. Konopka-Cupia?,G. Korcyl,W. Krzemień,K. ?ojek,J. Majewski,W. Migda?,M. Molenda,Sz. Nied?wiecki,M. Pa?ka,Z. Rudy,P. Salabura,M. Silarski,A. S?omski,J. Smyrski,J. Zdebik,M. Zieliński
Physics , 2013,
Abstract: We briefly present a design of a new PET scanner based on strips of polymer scintillators arranged in a barrel constituting a large acceptance detector. The solution proposed is based on the superior timing properties of the polymer scintillators. The position and time of the reaction of the gamma quanta in the detector material will be determined based on the time of arrival of light signals to the edges of the scintillator strips.
GPU accelerated image reconstruction in a two-strip J-PET tomograph  [PDF]
P. Bia?as,J. Kowal,A. Strzelecki,T. Bednarski,E. Czerwiński,A. Gajos,D. Kamińska,?. Kap?on,A. Kochanowski,G. Korcyl,P. Kowalski,T. Kozik,W. Krzemień,E. Kubicz,P. Moskal,Sz. Nied?wiecki,M. Pa?ka,L. Raczyński,Z. Rudy,O. Rundel,P. Salabura,N. G. Sharma,M. Silarski,A. S?omski,J. Smyrski,A. Wieczorek,W. Wi?licki,M. Zieliński,N. Zoń
Physics , 2015, DOI: 10.12693/APhysPolA.127.1500
Abstract: We present a fast GPU implementation of the image reconstruction routine, for a novel two strip PET detector that relies solely on the time of flight measurements.
J-PET analysis framework for the prototype TOF-PET detector  [PDF]
W. Krzemień,M. Silarski,K. Stola,D. Trybek,T. Bednarski,P. Bia?as,E. Czerwiński,?. Kap?on,A. Kochanowski,G. Korcyl,J. Kowal,P. Kowalski,T. Kozik,M. Molenda,P. Moskal,Sz. Nied?wiecki,M. Pa?ka,M. Pawlik,L. Raczyński,Z. Rudy,P. Salabura,N. G. Sharma,A. S?omski,J. Smyrski,A. Strzelecki,W. Wi?licki,M. Zieliński,N. Zoń
Physics , 2013, DOI: 10.1515/bams-2013-0109
Abstract: Novel TOF-PET scanner solutions demand, apart from the state of the art detectors, software for fast processing of the gathered data, monitoring of the whole scanner and reconstruction of the PET image. In this article we present an analysis framework for the novel STRIP-PET scanner developed by the J-PET collaboration in the Institute of Physics of the Jagiellonian University. This software is based on the ROOT package used in many particle physics experiments.
The STAR Silicon Strip Detector (SSD)  [PDF]
L. Arnold,J. Baudot,D. Bonnet,A. Boucham,S. Bouvier,J. Castillo,J. P. Coffin,C. Drancourt,B. Erazmus,L. Gaudichet,M. Germain,C. Gojak,J. Grabski,G. Guilloux,M. Guedon,B. Hippolyte,M. Janik,A. Kisiel,C. Kuhn,L. Lakehal-Ayat,F. Lefevre,C. LeMoal,P. Leszczynski,J. R. Lutz,A. Maliszewski,L. Martin,T. Milletto,T. Pawlak,W. Peryt,J. Pluta,M. Przewlocki,S. Radomski,O. Ravel,C. Renard,G. Renault,L. M. Rigalleau,C. Roy,D. Roy,C. Suire,P. Szarwas,A. Tarchini
Physics , 2002, DOI: 10.1016/S0168-9002(02)01963-0
Abstract: The STAR Silicon Strip Detector (SSD) completes the three layers of the Silicon Vertex Tracker (SVT) to make an inner tracking system located inside the Time Projection Chamber (TPC). This additional fourth layer provides two dimensional hit position and energy loss measurements for charged particles, improving the extrapolation of TPC tracks through SVT hits. To match the high multiplicity of central Au+Au collisions at RHIC the double sided silicon strip technology was chosen which makes the SSD a half million channels detector. Dedicated electronics have been designed for both readout and control. Also a novel technique of bonding, the Tape Automated Bonding (TAB), was used to fullfill the large number of bounds to be done. All aspects of the SSD are shortly described here and test performances of produced detection modules as well as simulated results on hit reconstruction are given.
Hit time and hit position reconstruction in the J-PET detector based on a library of averaged model signals  [PDF]
P. Moskal,N. G. Sharma,M. Silarski,T. Bednarski,P. Bia?as,J. Bu?ka,E. Czerwiński,A. Gajos,D. Kamińska,L. Kap?on,A. Kochanowski,G. Korcyl,J. Kowal,P. Kowalski,T. Kozik,W. Krzemień,E. Kubicz,Sz. Nied?wiecki,M. Pa?ka,L. Raczyński,Z. Rudy,O. Rundel,P. Salabura,A. S?omski,J. Smyrski,A. Strzelecki,A. Wieczorek,W. Wi?licki,I. Wochlik,M. Zieliński,N. Zoń
Physics , 2015, DOI: 10.12693/APhysPolA.127.149
Abstract: In this article we present a novel method of hit time and hit position reconstruction in long scintillator detectors. We take advantage of the fact that for this kind of detectors amplitude and shape of registered signals depends strongly on the position where particle hit the detector. The reconstruction is based on determination of the degree of similarity between measured and averaged signals stored in a library for a set of well-defined positions along the scintillator. Preliminary results of validation of the introduced method with experimental data obtained by means of the double strip prototype of the J-PET detector are presented.
Test of Lightguides for the J-PET Detector  [PDF]
Dominika Alfs
Physics , 2015,
Abstract: The aim of this work was to test the impact of the lightguides insertion in the J-PET detection system and to choose the best of available solutions. At the two strip J-PET test system a series of measurements was performed with different combinations concerning the length of the lightguides (3 mm and 3 cm) and scintillators (3, 15 and 30 cm), shape of lightguides (trapezoidal and cylindrical, with and without a cut matching the scintillator size) and optical connection between elements (optical gel and glue). It was proven that the insertion of the thin lightguide does not spoil the time resolution and the light output. Additionally,the correlation between the time resolution and the light output was confirmed.
Determination of the map of efficiency of the J-PET detector with the GATE package  [PDF]
P. Kowalski,L. Raczyński,T. Bednarski,P. Bia?as,E. Czerwiński,K. Giergiel,?. Kap?on,A. Kochanowski,G. Korcyl,J. Kowal,T. Kozik,W. Krzemień,M. Molenda,I. Moskal,P. Moskal,Sz. Nied?wiecki,M. Pa?ka,M. Pawlik-Nied?wiecka,Z. Rudy,P. Salabura,N. G. Sharma,M. Silarski,A. S?omski,J. Smyrski,A. Strzelecki,K. Szymański,W. Wi?licki,P. Witkowski,M. Zieliński,N. Zoń
Physics , 2014, DOI: 10.1515/bams-2014-0002
Abstract: A novel PET detector consisting of strips of polymer scintillators is being developed by the J-PET Collaboration. The map of efficiency and the map of geometrical acceptance of the 2-strip J-PET scanner are presented. Map of efficiency was determined using the Monte Carlo simulation software GATE based on GEANT4. Both maps were compared using method based on the chi2 test.
Data encoding efficiency in binary strip detector readout  [PDF]
Maurice Garcia-Sciveres,Xinkang Wang
Physics , 2013, DOI: 10.1088/1748-0221/9/04/P04021
Abstract: A prescription to calculate the minimum number of bits needed for binary strip detector readout is presented. This permits a systematic analysis of the readout efficiency relative to this theoretical minimum number of bits. Different level efficiencies are defined to include context information and engineering properties needed for reliable transmission, such as DC-balance. A commonly used encoding method is analyzed as an example and found to have an efficiency only of order 50%. A new encoding method called Pattern Overlay Compression is introduced to illustrate how the systematic analysis can guide the construction of more efficient readout methods. Pattern Overlay Compression significantly outperforms the above example in the occupancy range of interest.
Commissioning of the Silicon Strip Detector (SSD) of ALICE  [PDF]
Panos Christakoglou for the ALICE Collaboration
Physics , 2010,
Abstract: The latest results from the commissioning of the SSD with cosmics are presented in this paper. The hardware status of the detector, the front-end electronics, cooling, data acquisition and issues related to the on-line monitoring are shown. In addition, the procedures implemented and followed to address the alignment with the rest of the ITS sub-detectors along with both on-line and off-line calibration strategies are described. Finally, results from simulations as well as from the reconstruction of cosmic data demonstrating the performance of the detector are presented, proving that the SSD is ready for the forthcoming proton-proton data taking.
Beam Test of Silicon Strip Sensors for the ZEUS Micro Vertex Detector  [PDF]
L. A. T. Bauerdick,E. Borsato,C. Burgard,T. Carli,R. Carlin,M. Casaro,V. Chiochia,F. Dal Corso,D. Dannheim,A. Garfagnini,A. Kappes,R. Klanner,E. Koffeman,B. Koppitz,U. Koetz,E. Maddox,M. Milite,M. Moritz,J. S. T. Ng,M. C. Petrucci,I. Redondo,J. Rautenberg,H. Tiecke,M. Turcato,J. J. Velthuis,A. Weber
Physics , 2002, DOI: 10.1016/S0168-9002(03)00619-3
Abstract: For the HERA upgrade, the ZEUS experiment has designed and installed a high precision Micro Vertex Detector (MVD) using single sided micro-strip sensors with capacitive charge division. The sensors have a readout pitch of 120 microns, with five intermediate strips (20 micron strip pitch). An extensive test program has been carried out at the DESY-II testbeam facility. In this paper we describe the setup developed to test the ZEUS MVD sensors and the results obtained on both irradiated and non-irradiated single sided micro-strip detectors with rectangular and trapezoidal geometries. The performances of the sensors coupled to the readout electronics (HELIX chip, version 2.2) have been studied in detail, achieving a good description by a Monte Carlo simulation. Measurements of the position resolution as a function of the angle of incidence are presented, focusing in particular on the comparison between standard and newly developed reconstruction algorithms.
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