DocumentCode :
2375558
Title :
UCI staged Z-pinch
Author :
Van Drie, A. ; Bystritskii, V. ; Moosman, B. ; Rahman, Hamood Ur ; Rostoker, Norman ; Wessel, Frank J. ; Yur, G.
Author_Institution :
Dept. of Phys., California Univ., Irvine, CA, USA
fYear :
1995
fDate :
5-8 June 1995
Firstpage :
252
Abstract :
Summary form only given, as follows. The UCI Staged Z-Pinch experiment is being assembled to study laboratory-scale thermonuclear fusion. The load configuration consists of an imploding-liner plasma that collapses onto a coaxial, hydrogenic-fiber target. The pulsed-power driver is a low-inductance, capacitor bank with the following design characteristics: 50 microFd, 50 kV, 50 kJ, 1.9 microsec risetime, and 2 MA into a short-circuit; the hardware has also been designed to run with a coaxial, or planar, plasma-opening switch. Diagnostics include conventional X-ray imaging and spectroscopy and a nanosecond, multi-frame, nitrogen-laser system. The target fiber would be solid hydrogen or deuterium, cryogenically extruded through an orifice of 10-100 microns diameter. Initially, current flows through the outer liner and ultimately implodes on-axis, due to self-magnetic pressure. Near peak compression the current transfers to the fiber on a time scale estimated to be of the order of a few nano-seconds. Such rapid transfer of energy leads to a rapid increase in the fiber-internal energy, attaining conditions favorable for thermonuclear ignition. The implosion dynamics for this coupled system is evaluated theoretically on the basis of both flux compression and magnetic penetration models which include adiabatic, Ohmic, alpha-particle heating and radiation losses. Theoretical analysis and computer modeling suggests that fusion breakeven is possible at several MA current. The authors present their most recent results for this new configuration.
Keywords :
Z pinch; explosions; fusion reactor ignition; fusion reactors; plasma diagnostics; plasma heating; plasma ohmic heating; 1.9 mus; 2 MA; 50 kJ; 50 kV; N/sub 2/; Ohmic heating; UCI staged Z-pinch; X-ray imaging; X-ray spectroscopy; adiabatic heating; alpha-particle heating; coupled system; design characteristics; diagnostics; fiber-internal energy; flux compression; hydrogenic-fiber target; imploding-liner plasma; implosion dynamics; laboratory-scale thermonuclear fusion; load configuration; low-inductance capacitor bank; magnetic penetration models; nanosecond multi-frame N/sub 2/ laser system; peak compression; plasma-opening switch; pulsed-power driver; radiation losses; self-magnetic pressure; thermonuclear ignition; Assembly; Capacitors; Coaxial components; Fusion reactors; Hardware; Laboratories; Plasma diagnostics; Plasma properties; Plasma x-ray sources; Switches;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Plasma Science, 1995. IEEE Conference Record - Abstracts., 1995 IEEE International Conference on
Conference_Location :
Madison, WI, USA
ISSN :
0730-9244
Print_ISBN :
0-7803-2669-5
Type :
conf
DOI :
10.1109/PLASMA.1995.533257
Filename :
533257
Link To Document :
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