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Wyszukujesz frazę "Woźnicka, U." wg kryterium: Autor


Wyświetlanie 1-3 z 3
Tytuł:
Feasibility of Monte Carlo modelling for the neutron-neutron logging tool response in specific geological models
Autorzy:
Wiącek, U.
Woźnicka, U.
Powiązania:
https://bibliotekanauki.pl/articles/184592.pdf
Data publikacji:
2016
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
Monte Carlo calculations
neutron well logging
NNTE density tool
neutron parameters
Opis:
Neutron well logging is one of the basic methods for the determination of the characteristic parameters of rock samples. The neutron source and neutron detectors are elements of Neutron-Neutron Thermal-Epithermal logging tool (NNTE) of significant importance. A neutron source creates the neutron field in the nearest environment. Detectors placed at specified distances from the source register neutrons from this space. A signal of a Neutron-Neutron Thermal-Epithermal tool in specific geological conditions was numerically calculated by means of the Monte Carlo (MC) codes. The main aim of this paper is to show the potential for using the Monte Carlo N-Particle Transport Code (MCNP) software in nuclear well logging prospection methods. The results of this MC modelling are presented in this paper.
Źródło:
Geology, Geophysics and Environment; 2016, 42, 3; 365-383
2299-8004
2353-0790
Pojawia się w:
Geology, Geophysics and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Numerical optimisation of the fission-converter and the filter/moderator arrangement for the Boron Neutron Capture Therapy
Autorzy:
Tracz, G.
Dąbkowski, L.
Dworak, D.
Pytel, K.
Woźnicka, U.
Powiązania:
https://bibliotekanauki.pl/articles/148388.pdf
Data publikacji:
2003
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
BNCT
fission converter
Fluka
MCNP
Monte Carlo
neutrons
Opis:
The paper presents results of the numerical modelling of the fission-converter-based epithermal neutron source designed for a BNCT (Boron Neutron Capture Therapy) facility to be located at the Polish research nuclear reactor MARIA at Świerk. The unique design of the fission converter has been proposed due to a specific geometrical surrounding of the reactor. The filter/moderator arrangement has been optimised in order to moderate fission neutrons to epithermal energies and to get rid of both fast neutrons and photons from the therapeutic beam. The selected filter/moderator set-up ensures both the high epithermal neutron flux and the suitably low level of beam contamination. The elimination of photons originated in the reactor core is an exceptional advantage of the proposed design. It brings one order of magnitude lower gamma radiation dose than the permissible dose in such a type of therapeutic facility is required. The MCNP and FLUKA codes have been used for the computations.
Źródło:
Nukleonika; 2003, 48, 4; 177-185
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
CVD diamond detectors for fast alpha particles escaping from the tokamak D-T plasma
Autorzy:
Wodniak, I.
Drozdowicz, K.
Dankowski, J.
Gabańska, B.
Igielski, A.
Kurowski, A.
Marczewska, B.
Nowak, T.
Woźnicka, U.
Powiązania:
https://bibliotekanauki.pl/articles/146634.pdf
Data publikacji:
2011
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
CVD diamond detector
lost alpha particles
high temperature plasma diagnostics
Opis:
Measurements of the so-called lost alpha particles escaping from thermonuclear plasma in future tokamaks (such as ITER) for energy production would be essential for monitoring the energy balance in these devices. The detection would have to be carried out in a harsh environment (with high nuclear radiation fluxes, high temperature, etc.), which limits the use of common semiconductors for charged particle detection. Diamond seems to be an attractive material for alpha particle detectors in these conditions. In this paper an analysis of properties of a diamond detector for spectrometric alpha measurements is reported. A high purity CVD (chemical vapour deposition) single crystal diamond detector was used, fabricated for this dedicated application by the Diamond Detector Ltd. The energy calibration was carried out using a triple alpha particle isotope source, AMR33 (239Pu, 241Am, 244Cm). A very good energy resolution, ca. 20 keV at ca. 5.5 MeV had been obtained, which is comparable to that of the silicon detector. The linearity of the diamond detector amplitude response to the alpha particle energy was analyzed with the use of mono-energetic (0.4–2 MeV) ion beam from a Van de Graaff accelerator. Results of the measurements using the AMR33 source deviate at most 30 keV from the calibration line obtained in this way.
Źródło:
Nukleonika; 2011, 56, 2; 143-147
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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