Yazar "Jaworski G." seçeneğine göre listele

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    NEDA—NEutron Detector Array
    (Elsevier B.V., 2019) Valiente-Dobón J.J.; Jaworski G.; Goasduff A.; Egea F.J.; Modamio V.; Hüyük T.; Gadea A.
    The NEutron Detector Array, NEDA, will form the next generation neutron detection system that has been designed to be operated in conjunction with ?-ray arrays, such as the tracking-array AGATA, to aid nuclear spectroscopy studies. NEDA has been designed to be a versatile device, with high-detection efficiency, excellent neutron-? discrimination, and high rate capabilities. It will be employed in physics campaigns in order to maximise the scientific output, making use of the different stable and radioactive ion beams available in Europe. The first implementation of the neutron detector array NEDA with AGATA 1? was realised at GANIL. This manuscript reviews the various aspects of NEDA. © 2019 Elsevier B.V.
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    Neutron detection and ?-ray suppression using artificial neural networks with the liquid scintillators BC-501A and BC-537
    (Elsevier B.V., 2019) Söderström P.-A.; Jaworski G.; Valiente Dobón J.J.; Nyberg J.; Agramunt J.; de Angelis G.; González V.
    In this work we present a comparison between the two liquid scintillators BC-501A and BC-537 in terms of their performance regarding the pulse-shape discrimination between neutrons and ? rays. Special emphasis is put on the application of artificial neural networks. The results show a systematically higher ?-ray rejection ratio for BC-501A compared to BC-537 applying the commonly used charge comparison method. Using the artificial neural network approach the discrimination quality was improved to more than 95% rejection efficiency of ? rays over the energy range 150 to 1000 keV for both BC-501A and BC-537. However, due to the larger light output of BC-501A compared to BC-537, neutrons could be identified in BC-501A using artificial neural networks down to a recoil proton energy of 800 keV compared to a recoil deuteron energy of 1200 keV for BC-537. We conclude that using artificial neural networks it is possible to obtain the same ?-ray rejection quality from both BC-501A and BC-537 for neutrons above a low-energy threshold. This threshold is, however, lower for BC-501A, which is important for nuclear structure spectroscopy experiments of rare reaction channels where low-energy interactions dominates. © 2018
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    The new neutron multiplicity filter NEDA and its first physics campaign with AGATA
    (Jagellonian University, 2019) Jaworski G.; Goasduff A.; Egea Canet F.J.; Modamio V.; Hüyük T.; Triossi A.; Gadea A.
    A new neutron multiplicity filter NEDA, after a decade of design, R&D and construction, was employed in its first physics campaign with the AGATA spectrometer. Properties and performance of the array are discussed. 2019 © Jagellonian University. All Rights Reserved.