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AbstractAbstract
[en] The results obtained during the first stage of an experimental program on the study of plasma focus neutron emission are presented. The measurements were performed on two plasma focus devices having maximum stored energies of 4 kJoule and 20 kJoule, respectively. By carrying out correlated measurements on the neutron emission (using scintillator-photomultiplier and Geiger-Muller counters), on the hard X-ray emission and on the discharge current, some conclusions regarding the possible mechanism responsible for the neutron emission in these devices have been drawn. Neutron energies in the range 1.5-3 MeV have been determined; typical neutron yields are 106 neutrons/pulse (at 3.2 kJoule) and 108 neutrons/pulse (at 10 kJ) for the two devices operating in deuterium. (author)
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Journal Article
Journal
Revue Roumaine de Physique; ISSN 0035-4090;
; v. 24(3-4); p. 407-414

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AbstractAbstract
[en] The uses of plasma focus device as one source for ion irradiation. Several samples have been tested for ion irradiation. As the various types of materials and sample forms, a sample holder system have been designed to suit the need. (author)
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Source
2019; 6 p; NTC 2019: Nuclear Technical Convention 2019; Bangi (Malaysia); 22-24 Oct 2019; Available in Malaysian Nuclear Agency Document Delivery Center; Poster presentation
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Miscellaneous
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Bocancea, A.; Mandache, N.B.; Zambreanu, V.I.
Institutul Central de Fizica, Bucharest (Romania)1982
Institutul Central de Fizica, Bucharest (Romania)1982
AbstractAbstract
[en] Experimental results on the energetic characteristics of the plasma focus ionic component, produced in the IPF 2/20 device are presented. For energies greater than approximate 50 keV the energy distributions of the ions emitted forward are well fitted by the exponential function exp(-E/B), where the medium value of B is 48 keV. Most of the distributions have a maximum in the energy range 25-47 keV. (authors)
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May 1982; 13 p
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Report
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AbstractAbstract
[en] The plasma focus device functions as a multi-radiation source by accelerating and compressing the plasma produced. Irradiation of bacteria with Malaysian Nuclear Agency-Plasma Focus has never been conducted. Thus, various operation parameters are unknown. This study aims to determine the feasibility of using certain types of tube and number of shots to conduct irradiation of bacteria. Two types of tubes were irradiated: microcentrifuge tubes (Axygen) 1.5 mL with snap cap and conical-bottom and microcentrifuge tubes (SSL) 2.0 mL with screw cap and skirted-bottom. Voltages of 11.5 kV was applied. Also, comparisons were made between tubes given 1 shot and 2 shots during the same irradiation session. All changes to colour and material of tubes were observed. Microcentrifuge tubes 1.5 mL with snap cap and conical-bottom were damaged more than microcentrifuge tubes 2.0 mL with screw cap and skirted-bottom. Durability of tubes will decrease with increasing number of plasma shots given. In conclusion, it was determined using microcentrifuge tubes 2.0 mL with screw cap and skirted-bottom and only 1 shot of plasma to be feasible for bacteria culture irradiation. Further studies will be conducted to support this preliminary study. (author)
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Source
2019; 5 p; NTC 2019: Nuclear Technical Convention 2019; Bangi (Malaysia); 22-24 Oct 2019; Available in Malaysian Nuclear Agency Document Delivery Center; Oral presentation
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Miscellaneous
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AbstractAbstract
No abstract available
Original Title
Dichte- und Neutronenausbeute des Plasmafokus NESSI
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Spring meeting of the Deutsche Physikalische Gesellschaft; Hannover, F.R. Germany; 23 Feb 1976; AED-CONF--76-121-007; Short communication only.
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Journal Article
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Verhandlungen der Deutschen Physikalischen Gesellschaft; v. 2 p. 202
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AbstractAbstract
[en] This paper is devoted to study the characteristic of plasma pinch in Malaysian Nuclear Agency Plasma Focus plasma focus device (MNA-PF) correlated with the various charging voltage with 2 mbar argon gas pressure given. The capacitor charging voltage range varies from 11.5 kV up to 13 kV. Along this range there will be the most optimum operating capacitor voltage for the MNA-PF device. At this optimum range the highest intensity of x-ray will be produced. (author)
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Source
2018; 1 p; R&D Seminar 2018: Research and Development Seminar 2018; Bangi (Malaysia); 30 Oct - 2 Nov 2018; Available in Malaysian Nuclear Agency Document Delivery Center; Poster presentation
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Miscellaneous
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Conference
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Voitenko, D. A.; Ananyev, S. S.; Astapenko, G. I.; Basilaia, A. D.; Markolia, A. I.; Mitrofanov, K. N.; Myalton, V. V.; Timoshenko, A. P.; Kharrasov, A. M.; Krauz, V. I., E-mail: krauz_vi@nrcki.ru2017
AbstractAbstract
[en] Results are presented from experimental studies of the plasma flows generated in the KPF-4 Phoenix Mather-type plasma focus device (Sukhum Physical Technical Institute). In order to study how the formation and dynamics of the plasma flow depend on the initial distribution of the working gas, a system of pulsed gas puffing into the discharge volume was developed. The system allows one to create profiled gas distributions, including those with a reduced gas density in the region of plasma flow propagation. Results of measurements of the magnetic field, flow profile, and flow deceleration dynamics at different initial distributions of the gas pressure are presented.
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Copyright (c) 2017 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA)
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AbstractAbstract
[en] The spectral distribution of ions with energies up to 1.5 MeV was recorded by means of a focusing spectrograph. Distinct periodic structures in the energy spectrum are pointing to wave-particle interactions in the focus plasma. (orig.)
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Journal Article
Journal
Physics Letters. A; ISSN 0375-9601;
; v. 76(3/4); p. 255-256

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Eissa, M.A.; Saudy, A.H.; Sharkawy, W.
Proceedings of the Energy Independence Conference: Fusion Energy and Plasma Physics1987
Proceedings of the Energy Independence Conference: Fusion Energy and Plasma Physics1987
AbstractAbstract
[en] A plasma focus device has been constructed and tested for producing a high dense plasma. The system was feeded by maximum 3.3 kJ., capacitor bank, which delivers 200KA. With average period 11 μS. The results show that the time at which the first focus starts increases with raising the gas pressure while it was decreased with increasing the charging voltage. The verification of snow-plow model was acheived only at a charging voltage of 14 kV. up wards. (author)
[pt]
Um dispositivo de foco de plasma foi construido e testado para producao de um plasma de alta densidade. O sistema foi alimentado por um banco de capacitores maximo de 3.3KJ, que entraga 200 KA, com periodo medio de 11μs. Os resultados mostram que o tempo em que o primeiro foco comeca aumentar e quando surge a pressao do gas, enquanto que descrece com o aumento da voltagem de carregamento. A verificacao modelo de dispositivo de limpeza de flocos foi encontrada somente na voltagem de carregamento acima de 14 KV. (M.C.K.)Primary Subject
Source
Sociedade Brasileira de Fisica, Rio de Janeiro, RJ (Brazil); 892 p; 1987; p. 332-340; Energy Independence Conference: Fusion Energy and Plasma Physics; Rio de Janeiro, RJ (Brazil); 17-21 Aug 1987; Available from the Library of Comissao Nacional de Energia Nuclear, RJ, Brazil
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AbstractAbstract
[en] A preliminary measurement of neutron emission by a repetitive Plasma focus is presented. The device (1200 nF, 40nH, 30 kV, T/4 ? 400 ns) works with Deuterium at a pressure of 9.2 mbar with a repetition rate from 3 to 6Hz. Neutron radial emission of (1.32 ± 0.21) x107 and an axial emission of (2.08 ± 0.34) x107, for each burst of 5 seconds of duration, i.e. 15 to 30 shots per burst
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Source
16. IAEA technical meeting on research using small fusion devices; Mexico City (Mexico); 30 Nov - 3 Dec 2005; 11. Latin American workshop on plasma physics; Mexico City (Mexico); 5-9 Dec 2005; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
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