scholarly journals Performance and application of heavy ion nuclear microbeam facility at the Nuclear Physics Institute in Řež, Czech Republic

2019 ◽  
Vol 90 (1) ◽  
pp. 013701 ◽  
Author(s):  
Oleksandr Romanenko ◽  
Vladimir Havranek ◽  
Anna Mackova ◽  
Marie Davidkova ◽  
Mariapompea Cutroneo ◽  
...  
Keyword(s):  
Czech Republic ◽  
Nuclear Physics ◽  
Heavy Ion ◽  
Physics Institute ◽  
Nuclear Physics Institute

scholarly journals Publisher’s Note: “Performance and application of heavy ion nuclear microbeam facility at the Nuclear Physics Institute in Řež, Czech Republic” [Rev. Sci. Instrum. 90, 013701 (2019)]

2019 ◽  
Vol 90 (9) ◽  
pp. 099901
Author(s):  
Oleksandr Romanenko ◽  
Vladimir Havranek ◽  
Anna Mackova ◽  
Marie Davidkova ◽  
Mariapompea Cutroneo ◽  
...  
Keyword(s):  
Czech Republic ◽  
Nuclear Physics ◽  
Heavy Ion ◽  
Physics Institute ◽  
Nuclear Physics Institute

scholarly journals High-power TR-24 cyclotron-based p-n convertor cooled by submerged orifice jet

2020 ◽  
Vol 231 ◽  
pp. 03005
Author(s):  
Bém Pavel ◽  
Běhal Radomír ◽  
Gӧtz Miloslav ◽  
Plíhal Petr ◽  
Poklop Dušan ◽  
...  
Keyword(s):  
Nuclear Physics ◽  
Cooling System ◽  
Forward Direction ◽  
Beam Current ◽  
Neutron Field ◽  
Physics Institute ◽  
Jet Cooling ◽  
Submerged Orifice ◽  
Target Output ◽  
Nuclear Physics Institute

The TR-24 cyclotron (Advanced Cyclotron Systems Inc., Canada) of the Nuclear Physics Institute in Řež provides protons with variable energies from 18 MeV up to 24 MeV and beam current of 0.3 mA. For such parameters, the p +Be source reaction on thick Be target can produce a white-spectrum neutron field (En ≤ 22 MeV) with the intensity of 5×10 12 n/s/sr in forward direction. Present paper outlines the development of Be-target cooling system, devoted to remove the heat load of 7 kW (density up to 4 kW/cm2) from the target. Due to novel “orifice-form“ of jet cooling (resulting in the shortest source-to- sample distance of 20 mm) with extremely high cooling efficiency, the TR-24 p-n convertor can achieve neutron-flux up to 2×1012n/cm2/s nearby the target output.

scholarly journals Lyon Natural Radiocarbon Measurements I

Radiocarbon ◽  
1969 ◽  
Vol 11 (01) ◽  
pp. 112-117 ◽  
Author(s):  
J. Evin ◽  
R. Longin ◽  
Ch. Pachiaudi
Keyword(s):  
Nuclear Physics ◽  
Radiocarbon Dating ◽  
Late Quaternary ◽  
Quaternary Geology ◽  
Physics Institute ◽  
Nuclear Physics Institute

The Radiocarbon Dating Laboratory was founded in 1965 by the Department of Geology, University of Lyon, to study the Late Quaternary geology of the Rhone-Alps Region, and to contribute to hydrogeologic and archaeologic studies. It has been installed in the basement of the Nuclear Physics Institute. Preparation began in 1966 and first dates obtained in June 1967.

scholarly journals 26Mg target for nuclear astrophysics measurements

2018 ◽  
Vol 184 ◽  
pp. 02014
Author(s):  
I. Siváček ◽  
J. Mrázek ◽  
V. Kroha ◽  
V. Burjan ◽  
V. Glagolev ◽  
...  
Keyword(s):  
Nuclear Physics ◽  
Nuclear Reactions ◽  
Nuclear Astrophysics ◽  
Asymptotic Normalization ◽  
Physics Institute ◽  
Astrophysical Interest ◽  
Target Composition ◽  
Czech Academy ◽  
Academy Of Sciences ◽  
Nuclear Physics Institute

Two nuclear reactions of astrophysical interest, 26Mg(3He,d)27Al and 26Mg(d,p)27Mg, were measured for extraction of the Asymptotic Normalization Coefficients. Investigation of the target composition is presented, as well as the effects that showed up during analysis of the in-beam data obtained on CANAM accelerators in the Nuclear Physics Institute of the Czech Academy of Sciences (NPI CAS).

scholarly journals 1000 MeV Proton beam therapy facility at Petersburg Nuclear Physics Institute Synchrocyclotron

2006 ◽  
Vol 41 ◽  
pp. 424-432 ◽  
Author(s):  
N K Abrosimov ◽  
Yu A Gavrikov ◽  
E M Ivanov ◽  
D L Karlin ◽  
A V Khanzadeev ◽  
...  
Keyword(s):  
Proton Beam ◽  
Nuclear Physics ◽  
Proton Beam Therapy ◽  
Physics Institute ◽  
Nuclear Physics Institute

The energy release and temperature field in the ultracold neutron source of the WWR-M reactor at the Petersburg Nuclear Physics Institute

2016 ◽  
Vol 79 (9-10) ◽  
pp. 1391-1396
Author(s):  
A. P. Serebrov ◽  
B. V. Kislitsin ◽  
M. S. Onegin ◽  
V. A. Lyamkin ◽  
D. V. Prudnikov ◽  
...  
Keyword(s):  
Temperature Field ◽  
Energy Release ◽  
Neutron Source ◽  
Nuclear Physics ◽  
Ultracold Neutron ◽  
Physics Institute ◽  
Nuclear Physics Institute

scholarly journals Molecular bases of the effect of low doses of radiation

2020 ◽  
Vol 5 (3) ◽  
pp. 23-29
Author(s):  
V. G. Korolev
Keyword(s):  
Nuclear Physics ◽  
Biological Effects ◽  
Acute Exposure ◽  
Low Doses ◽  
Physics Institute ◽  
Postreplication Repair ◽  
Weak Expression ◽  
Yeast Mutants ◽  
Molecular Bases ◽  
Nuclear Physics Institute

By definition, low doses are minimum doses of a damaging agent, in particular radiation, causing a recorded biological effect. The problem of exposure to low doses of radiation is being discussed in scientific literature for decades, but there is still no generally accepted conclusion concerning the existence of some features of the effect of low doses in contrast to that of acute exposure. This is due to the fact as follows: if being fixed, these effects have a weak expression and can be easily criticized. The second important aspect of this problem is that biological effects are mainly described phenomenologically in literature, without deciphering their molecular causes. In recent years, a number of articles appeared in which the authors, when studying exposure to low doses of DNA-tropic agents, show that postreplication repair (in particular, its error-free branch) plays a key role in these effects. In the laboratory of eukaryotic genetics of Petersburg Nuclear Physics Institute named by B. P. Konstantinov, it was possible to isolate unique yeast mutants with a disrupted branch of error-free postreplication repair. A study of the processes of eliminating DNA damage with minimal deviations of their number from a spontaneous level made it possible to explain at the molecular level the differences in cell response to low doses from acute exposure.

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