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Objects Obtained by y Quanta Irradiation with Threshold Energy of 10 MeV of Pure Gaseous He, under High Pressure, in CuBe2 Apparatus 被引量:1
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作者 Roland Wisniewski Alexander Yu. Didyk Teresa Wilczyfiska-Kitowska 《Journal of Physical Science and Application》 2015年第4期268-276,共9页
A HeHPC (Helium high pressure chamber) filled up with pure gaseous helium at initial pressure about 1.1 bar was irradiated by braking γ-rays of 10 MeV threshold energy during 1.0 × 10^5 s at the electron beam ... A HeHPC (Helium high pressure chamber) filled up with pure gaseous helium at initial pressure about 1.1 bar was irradiated by braking γ-rays of 10 MeV threshold energy during 1.0 × 10^5 s at the electron beam current 22 - 24 μA. After irradiation, the residual pressure inside was equal to 430 bar. Synthesized foils of black color and other multiple objects were found inside the HeHPC mainly at the entrance window for γ-rays made from beryllium bronze as a plug of beryllium bronze HPC, at the inner surfaces of the reaction chamber made of high purity copper and at the copper collector. The element analysis, using SEM (Scanning electron microscopy) and MPRA (Microprobe roentgen analysis), allowed us to establish that the foils consist predominantly of carbon and the smaller quantities of other elements from carbon to iron. An explanation for the observed elements is suggested on the basis of helium fusion reactions under the action of y-rays with the reactions taking place in giant stars (thermally activated). The possible mechanism after 3α reaction is nα reactions and under barrier reactions. A second experiment with initial pressure of 3.05 kbar (with pressure drop by about 65 bar - after almost the same procedure of y-rays irradiation and with fully beryl bronze environment) suggests another possible nuclear reactions - He(Be, p)C, He(C, γ)O, and so on. The developed approach agrees well with a series of studies carried out by the authors where dense hydrogen and deuterium gases are acted on by γ-rays in the presence or absence of metals in the reaction chambers. 展开更多
关键词 IRRADIATION high pressure HELIUM PACS 25.20.Dc 25.45.de.
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Some Physical Properties of Graphite-Like Objects Obtained by γ Quanta Irradiation with Threshold Energy of 10 MeV of Pure Gaseous He, under High Pressure, in CuBe2 Apparatus
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作者 Roland Wisniewski Teresa Wilczynska-Kitowska Piotr Mazerewicz 《Journal of Physical Science and Application》 2016年第6期1-11,共11页
A HeHPC (helium high pressure chamber) filled up with pure gaseous helium at initial pressure about 1.1 kbar was irradiated by braking 7-rays of 10 MeV threshold energy during 1.0 × 10^5 s at the electron beam ... A HeHPC (helium high pressure chamber) filled up with pure gaseous helium at initial pressure about 1.1 kbar was irradiated by braking 7-rays of 10 MeV threshold energy during 1.0 × 10^5 s at the electron beam current (22-24) μA. After irradiation, the residual pressure inside was equal to 430 bar. Synthesized foils of black color and other multiple objects were found inside the HeHPC mainly at the entrance window for γ-rays made from beryllium bronze as a plug of beryllium bronze HPC, (published earlier) at the inner surfaces of the reaction chamber made of high purity copper and at the copper collector. Firstly, the element analysis, using SEM (scanning electron microscopy) and MPRA (microprobe roentgen analysis), allowed us to establish that the foils consist predominantly of carbon and oxygen and smaller quantities of other elements up to iron. Two years later some physical properties such as (low) density, (high) resistivity, magnetic (high paramagnetic) and dielectric (medium relative dielectric constant) properties were determined. A new carbon reach structure was also postulated basing on obtained diffractometer data. The second used method (see text) for element content determination, in principle, has confirmed the previous one. 展开更多
关键词 IRRADIATION high pressure HELIUM PACS: 25.20.Dc 25.45.de.
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The Study of Changes in the Element Compositions of Pd and Re Specimens Irradiated in Dense Gaseous Deuterium by y-Quanta with Boundary Energy up to 23 MeV 被引量:2
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作者 Alexander Yurievich Didyk Roland Stanislaw Wisniewski 《Journal of Physical Science and Application》 2013年第4期209-216,共8页
The element compositions of palladium and rhenium specimens irradiated in dense gaseous deuterium by y-quanta with the threshold energy 23 MeV were studies. Strong anomalies are found in the structure and element comp... The element compositions of palladium and rhenium specimens irradiated in dense gaseous deuterium by y-quanta with the threshold energy 23 MeV were studies. Strong anomalies are found in the structure and element composition of the irradiated Pd and Re specimens. 展开更多
关键词 25.45.-z 2H-induced reactions 25.45.de elastic and inelastic 25.20Dc photon absorption and scattering.
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