Temat: 29.20.dg - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Formation of Accelerated Particle Beam in Isochronous Cyclotron
Autorzy:: Voronin, A.
Partyka, J.
Aldibekova, A.
Powiązania:: https://bibliotekanauki.pl/articles/1381861.pdf
Data publikacji:: 2014-06
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 29.27.Bd
29.20.dg
41.85.-p
Opis:: In the paper there are given calculated and experimental data which allow to form necessary beam parameters for a precise experiment in nuclear physics. An intensity of a beam extracted from an isochronous cyclotron acceleration chamber ($E_{p}$ = 30 MeV) can reach 15 μA with an energy spread of 3 × $10^{-3}$. Accelerated ion beams of such kind are widely applicable in nuclear physical experiments.
Źródło:: Acta Physica Polonica A; 2014, 125, 6; 1408-1411
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Neutronic analysis of LBE-uranium spallation target accelerator driven system loaded with uranium dioxide in TRISO particles
Autorzy:: Bakir, G.
Selçuklu, S.
Genç, G.
Yapici, H.
Powiązania:: https://bibliotekanauki.pl/articles/1068556.pdf
Data publikacji:: 2016-07
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 28.20.-v
28.20.Np
28.65.+a
29.20.dg
29.85.Fj
Opis:: This study presents the neutronic performances of fissile breeding and energy production of a gas cooled accelerator-driven system with LBE-uranium dioxide (UO₂) spallation target. The accelerator-driven system is designed and optimized by considering various target materials, in terms of neutronic. Two different materials, LBE + natural UO₂ and LBE + 15% enrichment UO₂ are selected as target materials. The target zone is divided into two parts, one within the other; the outer part is pure LBE target part, and the inner part is UO₂ target part cooled with the helium gas. Tristructural-isotropic (TRISO)-coated fuel particles, containing UO₂ fuel, are embedded in a carbon matrix pebble with the packing fraction of a 29%, and the pebbles are placed in the UO₂ target part and in the fuel core with the packing fraction of a 60%. The fuel core is cooled with helium that is a high-temperature coolant. The target is bombarded with the continuous beams of a 1 GeV protons to produce high-flux neutrons that enter the fuel core. The fuel core is surrounded with a graphite reflector zone serving as both effective moderation and reflection of these neutrons. Furthermore, the whole system is enclosed by boron carbide, B₄C (shielding zone), to prevent the neutrons leakage out of the accelerator-driven system. The high-energy Monte Carlo code MCNPX along with the LA150 library is used for neutronic calculations. The numerical results bring out that the investigated accelerator-driven system has a high neutronic performance, from the energy production and fissile breeding points of view. Namely, it can be obtained over the thermal power of a 350 MW and produced over the fissile breeding of a 300 g/day.
Źródło:: Acta Physica Polonica A; 2016, 130, 1; 30-32
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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