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  1. Article ; Online: Performance of the SABAT Neutron-Based Explosives Detector Integrated with an Unmanned Ground Vehicle: A Simulation Study.

    Silarski, Michał / Nowakowski, Marek

    Sensors (Basel, Switzerland)

    2022  Volume 22, Issue 24

    Abstract: The effective and safe detection of illicit materials, explosives in particular, is currently of growing importance taking into account the geopolitical situation and increasing risk of a terrorist attack. The commonly used methods of detection are based ...

    Abstract The effective and safe detection of illicit materials, explosives in particular, is currently of growing importance taking into account the geopolitical situation and increasing risk of a terrorist attack. The commonly used methods of detection are based predominantly on metal detectors and georadars, which show only the shapes of the possible dangerous objects and do not allow for exact identification and risk assessment. A supplementary or even alternative method may be based on neutron activation analysis, which provides the possibility of a stoichiometric analysis of the suspected object and its non-invasive identification. One such sensor is developed by the SABAT collaboration, with its primary application being underwater threat detection. In this article, we present performance studies of this sensor, integrated with a mobile robot, in terms of the minimal detectable quantity of commonly used explosives in different environmental conditions. The paper describes the functionality of the used platform considering electronics, sensors, onboard computing power, and communication system to carry out manual operation and remote control. Robotics solutions based on modularized structures allow the extension of sensors and effectors that can significantly improve the safety of personnel as well as work efficiency, productivity, and flexibility.
    Language English
    Publishing date 2022-12-19
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2052857-7
    ISSN 1424-8220 ; 1424-8220
    ISSN (online) 1424-8220
    ISSN 1424-8220
    DOI 10.3390/s22249996
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: A new detector concept based on the prompt gamma radiation analysis for In vivo boron monitoring in BNCT.

    Silarski, M / Dziedzic-Kocurek, K / Sobczuk, F / Nykiel, A / Moskal, P / Niedźwiecki, S / Stępień, E Ł / Szczepanek, M

    Radiation protection dosimetry

    2023  Volume 199, Issue 15-16, Page(s) 1932–1936

    Abstract: The problem of boron concentration monitoring during the boron neutron capture therapy (BNCT) therapy is one of the main challenges of this type of radiotherapy and is directly related to the nature of the interaction of neutrons with mater. Among the ... ...

    Abstract The problem of boron concentration monitoring during the boron neutron capture therapy (BNCT) therapy is one of the main challenges of this type of radiotherapy and is directly related to the nature of the interaction of neutrons with mater. Among the available in vivo methods of boron monitoring positron emission tomography seems to be very promising but it requires a new boron carrier with a β+ emitter, which is not yet clinically available. An alternative solution may be the prompt gamma radiation analysis (PGRA) based on the secondary radiation emitted in the interaction of neutrons with the patient's tissues. This method requires, however, compact gamma radiation detection systems sustaining high counting rates and characterized by very good energy resolution. In this contribution, we present state-of-the-art solutions for monitoring in BNCT based on PGRA. Moreover, we describe a new concept of such a system based on position-sensitive scintillator detectors equipped with an anti-Compton shield and data analysis supported with modern artificial intelligence algorithms.
    MeSH term(s) Humans ; Boron Neutron Capture Therapy/methods ; Boron ; Gamma Rays ; Artificial Intelligence ; Neutrons
    Chemical Substances Boron (N9E3X5056Q)
    Language English
    Publishing date 2023-10-24
    Publishing country England
    Document type Journal Article
    ZDB-ID 225912-6
    ISSN 1742-3406 ; 0144-8420
    ISSN (online) 1742-3406
    ISSN 0144-8420
    DOI 10.1093/rpd/ncac245
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Search for the KS → 3π0 decay with the KLOE detector

    Silarski M.

    EPJ Web of Conferences, Vol 37, p

    2012  Volume 05004

    Abstract: The KS → 3π0 decay is a pure CP violating process which, assuming CPT invariance, gives access to the CP – violating phase of the weak decay amplitude into I=1 final states. This decay has not been observed so far, and the best upper limit on the ... ...

    Abstract The KS → 3π0 decay is a pure CP violating process which, assuming CPT invariance, gives access to the CP – violating phase of the weak decay amplitude into I=1 final states. This decay has not been observed so far, and the best upper limit on the branching ratio BR(KS → 3π0) < 1.2 · 10−7 is two orders of magnitude larger than predictions based on the Standard Model. In this article we present the search for the KS → 3π0 decay performed with the KLOE detector operating at the DAΦNE ϕ – factory at the Frascati Laboratory. We describe the analysis techniques used for the background rejection and signal events selection leading to the result of an almost five times lower upper limit on the KS → 3π0 branching ratio. We also discuss the perspectives for a new measurement using the KLOE – 2 apparatus equipped with a new inner tracker and the calorimeters at low θ angle.
    Keywords Physics ; QC1-999 ; Science ; Q ; DOAJ:Physics (General) ; DOAJ:Physics and Astronomy
    Language English
    Publishing date 2012-12-01T00:00:00Z
    Publisher EDP Sciences
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article ; Online: Comparison of cell casted and 3D-printed plastic scintillators for dosimetry applications.

    Kulig, D / Kapłon, Ł / Moskal, G / Beddar, S / Fiutowski, T / Górska, W / Hajduga, J / Jurgielewicz, P / Kabat, D / Kalecińska, K / Kopeć, M / Koperny, S / Mindur, B / Moroń, J / Niedźwiecki, S / Silarski, M / Sobczuk, F / Szumlak, T / Ruciński, A

    Radiation protection dosimetry

    2023  Volume 199, Issue 15-16, Page(s) 1824–1828

    Abstract: Currently, the most used methods of plastic scintillator (PS) manufacturing are cell casting and bulk polymerisation, extrusion, injection molding, whereas digital light processing (DLP) 3D printing technique has been recently introduced. For our ... ...

    Abstract Currently, the most used methods of plastic scintillator (PS) manufacturing are cell casting and bulk polymerisation, extrusion, injection molding, whereas digital light processing (DLP) 3D printing technique has been recently introduced. For our research, we measured blue-emitting EJ-200, EJ-208, green-emitting EJ-260, EJ-262 cell cast and two types of blue-emitting DLP-printed PSs. The light output of the samples, with the same dimension of 10 mm × 10 mm × 10 mm, was compared. The light output of the samples, relative to the reference EJ-200 cell-cast scintillator, equals about 40-49 and 70-73% for two types of 3D-printed, and two green-emitting cell-casted PSs, respectively. Performance of the investigated scintillators is sufficient to use them in a plastic scintillation dosemeter operating in high fluence gamma radiation fields.
    MeSH term(s) Scintillation Counting/methods ; Radiometry ; Printing, Three-Dimensional
    Language English
    Publishing date 2023-10-11
    Publishing country England
    Document type Journal Article
    ZDB-ID 225912-6
    ISSN 1742-3406 ; 0144-8420
    ISSN (online) 1742-3406
    ISSN 0144-8420
    DOI 10.1093/rpd/ncac248
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Book: Analysis of the differential cross sections for the reaction pp -> ppK+K- in view of the K+K- interaction

    Silarski, Michał

    (Berichte des Forschungszentrums Jülich ; 4278)

    2008  

    Author's details Michał Silarski. Forschungszentrum Jülich, Institut für Kernphysik (IKP)
    Series title Berichte des Forschungszentrums Jülich ; 4278
    Language English
    Size 37 S., Ill., graph. Darst., 30 cm
    Publisher Forschungszentrum, Zentralbibliothek
    Publishing place Jülich
    Document type Book
    Note Auch im Internet unter der Adresse http://www.fz-juelich.de/zb/juwel verfügbar ; Literaturverz. S. 35 - 37
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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  6. Article ; Online: Close to threshold η′ meson production in proton-proton collisions at cosy-11

    Czerwiński E. / Moskal P. / Silarski M.

    EPJ Web of Conferences, Vol 81, p

    2014  Volume 02003

    Abstract: We summarize results from measurements of excitation function for pp → ppη′ reaction performed at COSY-11 detector. The determined cross sections enabled an extraction of the scattering length of the η′-proton interaction in the vacuum. ...

    Abstract We summarize results from measurements of excitation function for pp → ppη′ reaction performed at COSY-11 detector. The determined cross sections enabled an extraction of the scattering length of the η′-proton interaction in the vacuum.
    Keywords Physics ; QC1-999 ; Science ; Q
    Language English
    Publishing date 2014-01-01T00:00:00Z
    Publisher EDP Sciences
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  7. Article ; Online: Close to threshold η′ meson production in proton-proton collisions at cosy-11

    Czerwiński E. / Moskal P. / Silarski M.

    EPJ Web of Conferences, Vol 81, p

    2014  Volume 02003

    Abstract: We summarize results from measurements of excitation function for pp → ppη′ reaction performed at COSY-11 detector. The determined cross sections enabled an extraction of the scattering length of the η′-proton interaction in the vacuum. ...

    Abstract We summarize results from measurements of excitation function for pp → ppη′ reaction performed at COSY-11 detector. The determined cross sections enabled an extraction of the scattering length of the η′-proton interaction in the vacuum.
    Keywords Physics ; QC1-999 ; Science ; Q
    Language English
    Publishing date 2014-01-01T00:00:00Z
    Publisher EDP Sciences
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  8. Article ; Online: Testing CPT symmetry in ortho-positronium decays with positronium annihilation tomography.

    Moskal, P / Gajos, A / Mohammed, M / Chhokar, J / Chug, N / Curceanu, C / Czerwiński, E / Dadgar, M / Dulski, K / Gorgol, M / Goworek, J / Hiesmayr, B C / Jasińska, B / Kacprzak, K / Kapłon, Ł / Karimi, H / Kisielewska, D / Klimaszewski, K / Korcyl, G /
    Kowalski, P / Krawczyk, N / Krzemień, W / Kozik, T / Kubicz, E / Niedźwiecki, S / Parzych, S / Pawlik-Niedźwiecka, M / Raczyński, L / Raj, J / Sharma, S / Choudhary, S / Shopa, R Y / Sienkiewicz, A / Silarski, M / Skurzok, M / Stępień, E Ł / Tayefi, F / Wiślicki, W

    Nature communications

    2021  Volume 12, Issue 1, Page(s) 5658

    Abstract: Charged lepton system symmetry under combined charge, parity, and time-reversal transformation (CPT) remains scarcely tested. Despite stringent quantum-electrodynamic limits, discrepancies in predictions for the electron-positron bound state (positronium ...

    Abstract Charged lepton system symmetry under combined charge, parity, and time-reversal transformation (CPT) remains scarcely tested. Despite stringent quantum-electrodynamic limits, discrepancies in predictions for the electron-positron bound state (positronium atom) motivate further investigation, including fundamental symmetry tests. While CPT noninvariance effects could be manifested in non-vanishing angular correlations between final-state photons and spin of annihilating positronium, measurements were previously limited by knowledge of the latter. Here, we demonstrate tomographic reconstruction techniques applied to three-photon annihilations of ortho-positronium atoms to estimate their spin polarisation without magnetic field or polarised positronium source. We use a plastic-scintillator-based positron-emission-tomography scanner to record ortho-positronium (o-Ps) annihilations with single-event estimation of o-Ps spin and determine the complete spectrum of an angular correlation operator sensitive to CPT-violating effects. We find no violation at the precision level of 10
    Language English
    Publishing date 2021-09-27
    Publishing country England
    Document type Journal Article
    ZDB-ID 2553671-0
    ISSN 2041-1723 ; 2041-1723
    ISSN (online) 2041-1723
    ISSN 2041-1723
    DOI 10.1038/s41467-021-25905-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Discrete symmetries tested at 10

    Moskal, Paweł / Czerwiński, Eryk / Raj, Juhi / Bass, Steven D / Beyene, Ermias Y / Chug, Neha / Coussat, Aurélien / Curceanu, Catalina / Dadgar, Meysam / Das, Manish / Dulski, Kamil / Gajos, Aleksander / Gorgol, Marek / Hiesmayr, Beatrix C / Jasińska, Bożena / Kacprzak, Krzysztof / Kaplanoglu, Tevfik / Kapłon, Łukasz / Klimaszewski, Konrad /
    Konieczka, Paweł / Korcyl, Grzegorz / Kozik, Tomasz / Krzemień, Wojciech / Kumar, Deepak / Moyo, Simbarashe / Mryka, Wiktor / Niedźwiecki, Szymon / Parzych, Szymon / Del Río, Elena Pérez / Raczyński, Lech / Sharma, Sushil / Choudhary, Shivani / Shopa, Roman Y / Silarski, Michał / Skurzok, Magdalena / Stępień, Ewa Ł / Tanty, Pooja / Ardebili, Faranak Tayefi / Ardebili, Keyvan Tayefi / Eliyan, Kavya Valsan / Wiślicki, Wojciech

    Nature communications

    2024  Volume 15, Issue 1, Page(s) 78

    Abstract: Discrete symmetries play an important role in particle physics with violation of CP connected to the matter-antimatter imbalance in the Universe. We report the most precise test of P, T and CP invariance in decays of ortho-positronium, performed with ... ...

    Abstract Discrete symmetries play an important role in particle physics with violation of CP connected to the matter-antimatter imbalance in the Universe. We report the most precise test of P, T and CP invariance in decays of ortho-positronium, performed with methodology involving polarization of photons from these decays. Positronium, the simplest bound state of an electron and positron, is of recent interest with discrepancies reported between measured hyperfine energy structure and theory at the level of 10
    Language English
    Publishing date 2024-01-02
    Publishing country England
    Document type Journal Article
    ZDB-ID 2553671-0
    ISSN 2041-1723 ; 2041-1723
    ISSN (online) 2041-1723
    ISSN 2041-1723
    DOI 10.1038/s41467-023-44340-6
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Feasibility of the J-PET to monitor the range of therapeutic proton beams.

    Baran, Jakub / Borys, Damian / Brzeziński, Karol / Gajewski, Jan / Silarski, Michał / Chug, Neha / Coussat, Aurélien / Czerwiński, Eryk / Dadgar, Meysam / Dulski, Kamil / Eliyan, Kavya V / Gajos, Aleksander / Kacprzak, Krzysztof / Kapłon, Łukasz / Klimaszewski, Konrad / Konieczka, Paweł / Kopeć, Renata / Korcyl, Grzegorz / Kozik, Tomasz /
    Krzemień, Wojciech / Kumar, Deepak / Lomax, Antony J / McNamara, Keegan / Niedźwiecki, Szymon / Olko, Paweł / Panek, Dominik / Parzych, Szymon / Perez Del Rio, Elena / Raczyński, Lech / Simbarashe, Moyo / Sharma, Sushil / Shivani / Shopa, Roman Y / Skóra, Tomasz / Skurzok, Magdalena / Stasica, Paulina / Stępień, Ewa Ł / Tayefi, Keyvan / Tayefi, Faranak / Weber, Damien C / Winterhalter, Carla / Wiślicki, Wojciech / Moskal, Paweł / Ruciński, Antoni

    Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB)

    2024  Volume 118, Page(s) 103301

    Abstract: Purpose: The aim of this work is to investigate the feasibility of the Jagiellonian Positron Emission Tomography (J-PET) scanner for intra-treatment proton beam range monitoring.: Methods: The Monte Carlo simulation studies with GATE and PET image ... ...

    Abstract Purpose: The aim of this work is to investigate the feasibility of the Jagiellonian Positron Emission Tomography (J-PET) scanner for intra-treatment proton beam range monitoring.
    Methods: The Monte Carlo simulation studies with GATE and PET image reconstruction with CASToR were performed in order to compare six J-PET scanner geometries. We simulated proton irradiation of a PMMA phantom with a Single Pencil Beam (SPB) and Spread-Out Bragg Peak (SOBP) of various ranges. The sensitivity and precision of each scanner were calculated, and considering the setup's cost-effectiveness, we indicated potentially optimal geometries for the J-PET scanner prototype dedicated to the proton beam range assessment.
    Results: The investigations indicate that the double-layer cylindrical and triple-layer double-head configurations are the most promising for clinical application. We found that the scanner sensitivity is of the order of 10
    MeSH term(s) Protons ; Feasibility Studies ; Positron-Emission Tomography ; Proton Therapy/methods ; Phantoms, Imaging ; Monte Carlo Method
    Chemical Substances Protons
    Language English
    Publishing date 2024-01-29
    Publishing country Italy
    Document type Journal Article
    ZDB-ID 1122650-x
    ISSN 1724-191X ; 1120-1797
    ISSN (online) 1724-191X
    ISSN 1120-1797
    DOI 10.1016/j.ejmp.2024.103301
    Database MEDical Literature Analysis and Retrieval System OnLINE

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