American Journal of Modern Physics
Volume 8, Issue 6, November 2019, Pages: 86-89
Received: Sep. 25, 2019;
Accepted: Nov. 5, 2019;
Published: Jan. 4, 2020
Views 390 Downloads 121
Walid Sahyouni, Department of Physics, Al-Baath University, Homs, Syria
Alaa Nassif, Faculty of Engineering, Al-Wataniya Private University, Hama, Syria
The aim of this research studying soft x-ray emission from United Nations University/International Centre for Theoretical Physics Plasma Fusion Facility (UNU/ICTP PFF) plasma focus device with nitrogen gas pressure changes and find the maximum value of soft x-ray yield by using the standard parameters of device and do optimization to obtain the combination of pressure and electrodes dimensions that gives the maximum value of soft x-ray yield. Many numerical experiments were carried out using Lee code and obtained the maximum value of soft x-ray yield 0.193J at pressure 1.9 Torr by using the standard parameters of device. We optimized the device and found the optimum combination of pressure and electrode dimensions (P0 = 0.5 Torr, z0 = 9 cm, a = 3.19 cm, b = 3.2 cm,) that gives the maximum value of soft x-ray yield Ysxr = 2.7 J without changing the energy of the device.
Nitrogen Soft X-Ray Yield Optimization from UNU/ICTP PFF Plasma Focus Device, American Journal of Modern Physics.
Vol. 8, No. 6,
2019, pp. 86-89.
Copyright © 2019 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/
) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
R. S. Rawat. (2017). Plasma Science and Technology for Emerging Economies. Springer Nature Singapore Pte Ltd. p113.
N. V. Fillipov, T. I. Fillipova, V. P. Vinogradov, Dense high temperature plasma in a non-cylindrical Z-pinch compression. Nucl. Fusion Suppl. 2, 577–587 (1962)
J. W. Mather, Investigation of the high-energy acceleration mode in the coaxial gun. Phys. Fluids Suppl. 7 (11), S28–S34 (1964)
Lee, S., “Plasma Focus Model Yielding Trajectory and Structure”. In: Radiations in Plasmas, V. II, Ed. McNamara, B., (World Scientific, Singapore, 1984), pp. 978–987.
Sahyouni, Walid, and Alaa Nassif. "Neon Soft X-Ray Yield Optimization from NX2 Dense Plasma Focus Device." JORDAN JOURNAL OF PHYSICS 11.3 (2018): 167-172.
Lee, S. and Saw, S. H., Plasma Focus Numerical Experiments (NEWPF2016), Module 4, p. 24.
M J Sadowski, et al. Soft x-ray studies of plasma-focus pinch structures in PF-1000U experiments. Plasma Sources Sci. Technol. 24 (2015) 055003 (12pp).
E. P. Bogolyubov. A Powerful Soft X-ray Source for X-ray Lithography Based on Plasma Focusing. Physica Scripta. Vol. 57, 488È494, 1998.
Sing Lee, et al. High Rep Rate High Performance Plasma Focus as a Powerful Radiation Source. IEEE TRANSACTIONS ON PLASMA SCIENCE, VOL. 26, NO. 4, AUGUST 1998.
M. Akel • Sh. Al-Hawat • S. H. Saw • S. Lee. Numerical Experiments on Oxygen Soft X-Ray Emissions from Low Energy Plasma Focus Using Lee Model. J Fusion Energ (2010) 29: 223–231 DOI 10.1007/s10894-009-9262-6.
M. Akel • S. Lee. Dependence of Plasma Focus Argon Soft X-Ray Yield on Storage Energy, Total and Pinch Currents. J Fusion Energ (2012) 31: 143–150 DOI 10.1007/s10894-011-9445-9.
M. Akel. Sh. Al-Hawat. S. Lee. Numerical Experiments on Soft X-ray Emission Optimization of Nitrogen Plasma in 3 kJ Plasma Focus SY-1 Using Modified Lee Model. J Fusion Energ DOI 10.1007/s10894-009-9203-4.
S Lee, S H Saw, P Lee and R S Rawat. Numerical experiments on plasma focus neon soft x-ray scaling. Plasma Phys. Control. Fusion 51 (2009) 105013 (8pp).
M. Akel. S. Lee. (2012) Soft X-Ray Emission in the Water Window Region with Nitrogen Filling in a Low Energy Plasma Focus J Fusion Energ. DOI 10.1007/s10894-012-9536-2.
M. Akel. S. Lee. Practical Optimization of AECS PF-2 Plasma Focus Device for Argon Soft X-ray Operation. J Fusion Energ (2012) 31: 122–129. DOI 10.1007/s10894-011-9444-x.