Journal of Physics & Astronomy

G. M. El-Aragi ¹

Affiliations
1 Plasma Physics and Nuclear Fusion Dept., Nuclear Research Center, AEA, P.O. Box 13759 Cairo, EG

Abstract

Several phenomena recorded in dense plasma focus (DPF) discharges seem to reproduce astrophysical observations. Time-integrated ion measurements were performed with pinhole cameras equipped with solid-state nuclear track detectors (of type CR-39). The ion-pinhole cameras were placed at an angle zero degree with respect to the anode axis. The plasma ion tracks (cluster of micro-beam) is laboratory analog to the formation of globular clusters in Milky-way galaxy. CCZ model (core surrounded by co-central zones) is proposed to estimate the ion track density of dense plasma focus discharge. The cluster morphology of plasma ion tracks formed by DPF are laboratory similar to the formation of the globular cluster of our galaxy.

Keywords

Ion-Pinhole, Plasma Focus, Globular Clusters, Galaxy, Track Detectors.

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G. M. El-Aragi ¹

Affiliations
1 Plasma Department, Nuclear Research Center, Atomic Energy Authority, Cairo, EG

Abstract

Non-thermal plasma technology was used to evaluate the effect of exposure on growth and yield of berseem crop (Egyptian clover). The exposure system that was used to generate plasma radiations is the atmospheric pressure plasma jet (APPJ). This system produces a high flux stream of reactive chemical species at atmospheric pressure and low temperature. The clover seedswere divided equally (100 gram weight) into several groups: one unexposed control group and other tested groups (six groups) which were exposed to different number of pulses i.e. different doses of radiations. Among the treatments, all tested groups (1, 3, 5, 7 pulses) except for other two tested groups (9 and 11 pulses) have positive effect of an increased growth of clover crop relative to control group. The field experiments were conducted at EgyptianAtomic EnergyAuthority (EAEA) farm.

Keywords

Plasma Technology, Berseemcrop, Field Experiments, Clover Seeds.

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G. M. El-Aragi ¹

Affiliations
1 Plasma Physics and Nuclear Fusion Department, Nuclear Research Center, Cairo, EG

Abstract

Tesla coil was proposed by an inventor Nicholas Tesla in around 1891 and known as resonant transformer or Tesla transformer (TT). Tesla transformer can produce high AC voltages at high frequency and low currents. This paper describes design and operation homemade tesla coil. Different tests were done to find the optimum conditions of operating Tesla coil such as maximum output voltage, current and spark length. Fast Fourier transformer (FFT) of primary and secondary side signals was done.

Keywords

Tesla Coil, High Frequency, Resonant Transformer, Fast Fourier Transformer.

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