DocumentCode :
227154
Title :
Avenues and challenges in material processing and synthesis under extreme conditions in pulsed high energy density plasma focus device
Author :
Rawat, R.S.
Author_Institution :
Nat. Inst. of Educ., Nanyang Technol. Univ., Singapore, Singapore
fYear :
2014
fDate :
25-29 May 2014
Firstpage :
1
Lastpage :
1
Abstract :
Milestone nuclear fusion facilities, based on both magnetic and inertial plasma confinement concepts, are currently under construction or in operation aiming at demonstrating ignition and energy gain. One of the critical concerns in this field is the characterization and development of advanced plasma and radiation facing materials which will be able to withstand the extreme radiation and heat loads expected in fusion reactors. The dense plasma focus (DPF) device, a coaxial plasma gun, that compresses the plasma to very high energy density (~1010-1011 J/m3) and offers a complex mix of high energy ions (~10 keV to few MeV), immensely hot (~1-2 keV) and dense (~1025 m-3) pinch plasma, fast moving ionization wave-front, and a strong shockwave. The power flux density of ~106-1012 W/cm2, heat flux factor of ~102-109 W.s0.5/cm2, neutron yield of ~104-1011 neutrons/shot, and soft/hard x-rays in the photon energy range of several hundreds of eV to hundreds of keV with maximum wall plug efficiency of about 5% have been estimated for DPF devices operating at different capacitor bank storage energies proving a unique plasma and radiation environment highly suitable for not only investigating materials under extreme conditions but also for synthesizing material with novel physical properties.
Keywords :
pinch effect; plasma density; plasma focus; plasma guns; plasma inertial confinement; plasma materials processing; plasma shock waves; coaxial plasma gun; fast moving ionization wave-front; fusion reactors; heat flux factor; heat loading; high energy ions; ignition; inertial plasma confinement; magnetic plasma confinement; material processing; milestone nuclear fusion facilities; neutron yield; photon energy capacitor bank storage energy; pinch plasma; plasma extreme radiation; plasma focus device; power flux density; pulsed high energy density; radiation facing materials; shock wave; soft-hard X-ray photon energy; very high energy density; Education; Fusion reactors; Heating; Ions; Materials; Neutrons; Plasmas;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Plasma Sciences (ICOPS) held with 2014 IEEE International Conference on High-Power Particle Beams (BEAMS), 2014 IEEE 41st International Conference on
Conference_Location :
Washington, DC
Print_ISBN :
978-1-4799-2711-1
Type :
conf
DOI :
10.1109/PLASMA.2014.7012217
Filename :
7012217
Link To Document :
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