219 citations · 2.2k across the 62 of their papers we have counts for
13 papers · 1 filter
Searches for discrete symmetries violation in ortho-positronium decay using the J-PET detector
D. Kamińska, T. Bednarski, P. Białas +24
In this paper we present prospects for using the J-PET detector to search for discrete symmetries violations in a purely leptonic system of the positronium atom. We discuss tests o…
Studies of unicellular micro-organisms Saccharomyces cerevisiae by means of Positron Annihilation Lifetime Spectroscopy
E. Kubicz, B. Jasińska, B. Zgardzińska +26
Results of Positron Annihilation Lifetime Spectroscopy (PALS) and microscopic studies on simple microorganisms: brewing yeasts are presented. Lifetime of ortho - positronium (o-Ps)…
Reconstruction of hit-time and hit-position of annihilation quanta in the J-PET detector using the Mahalanobis distance
N. G. Sharma, M. Silarski, T. Bednarski +24
The J-PET detector being developed at Jagiellonian University, is a Positron Emission Tomograph composed of the long strips of polymer scintillators. At the same time it is a detec…
PALS investigations of free volumes thermal expansion of J-PET plastic scintillator synthesized in polystyrene matrix
A. Wieczorek, B. Zgardzińska, B. Jasińska +25
The polystyrene dopped with 2,5-diphenyloxazole as a primary fluor and 2-(4-styrylphenyl)benzoxazole as a wavelength shifter, prepared as a plastic scintillator was investigated us…
Processing optimization with parallel computing for the J-PET tomography scanner
W. Krzemień, M. Bała, T. Bednarski +27
The Jagiellonian-PET (J-PET) collaboration is developing a prototype TOF-PET detector based on long polymer scintillators. This novel approach exploits the excellent time propertie…
Application of the Compress Sensing Theory for Improvement of the TOF Resolution in a Novel J-PET Instrument
L. Raczynski, P. Moskal, P. Kowalski +24
Nowadays, in Positron Emission Tomography (PET) systems, a Time of Flight information is used to improve the image reconstruction process. In Time of Flight PET (TOF-PET), fast det…
3D PET image reconstruction based on Maximum Likelihood Estimation Method (MLEM) algorithm
Artur Słomski, Zbigniew Rudy, Tomasz Bednarski +23
Positron emission tomographs (PET) do not measure an image directly. Instead, they measure at the boundary of the field-of-view (FOV) of PET tomograph a sinogram that consists of m…
Plastic scintillators for positron emission tomography obtained by the bulk polymerization method
Łukasz Kapłon, Andrzej Kochanowski, Marcin Molenda +24
This paper describes three methods regarding the production of plastic scintillators. One method appears to be suitable for the manufacturing of plastic scintillator, revealing pro…
Multiple scattering and accidental coincidences in the J-PET detector simulated using GATE package
P. Kowalski, P. Moskal, W. Wiślicki +28
Novel Positron Emission Tomography system, based on plastic scintillators, is developed by the J-PET collaboration. In order to optimize geometrical configuration of built device,…
Analysis framework for the J-PET scanner
W. Krzemień, A. Gajos, A. Gruntowski +28
J-PET analysis framework is a flexible, lightweight, ROOT-based software package which provides the tools to develop reconstruction and calibration procedures for PET tomography. I…
Hit time and hit position reconstruction in the J-PET detector based on a library of averaged model signals
P. Moskal, N. G. Sharma, M. Silarski +28
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…
GPU accelerated image reconstruction in a two-strip J-PET tomograph
P. Białas, J. Kowal, A. Strzelecki +26
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.
A pilot study of the novel J-PET plastic scintillator with 2-(4-styrylphenyl)benzoxazole as a wavelength shifter
A. Wieczorek, P. Moskal, Sz. Niedźwiecki +30
For the first time a molecule of 2-(4-styrylphenyl)benzoxazole containing benzoxazole and stilbene groups is applied as a scintillator dopant acting as a wavelength shifter. In thi…