|icc_2006_park.pdf||2006-03-15 18:19:51||Jaeyoung Park|
High Voltage Operation of Inertial Electrostatic Confinement (IEC) Device for Neutron Generation and Periodically Oscillating Plasma Sphere (POPS)
Author: Jaeyoung Park
Submitted: 2005-12-21 11:23:24
Co-authors: R. A. Nebel , R. Aragonez, M. Kostora, and E. Evstatiev
Los Alamos National Laboratory
Bikini Atoll Rd
Los Alamos, NM 87545
Theoretical work1,2 has suggested that a tiny oscillating ion cloud may undergo a self-similar collapse that can result in the periodic and simultaneous attainment of ultra-high densities and temperatures. Theoretical projections1 indicate that such a system may have net fusion gain even for an advanced fuel such as D-D. In recent experimental work on the INS-e device at LANL we have observed the POPS oscillations by resonantly driving the plasma at the POPS frequency.3,4 Furthermore, stable virtual cathodes have been produced on INS-e that are ~ 65% of the applied voltage5, which exceed previous stability predictions6 by about a factor of 4. More recent 1-D spherical kinetic simulations5 have indicated that the angular momentum present in the virtual cathode can provide this stabilization.
In extending the experimental operating regime of INS-e device, we completed the high voltage upgrade that can provide HV pulse power up to 100 kV. The preliminary results from the HV POPS operation will be presented. In addition, we will demonstrate the neutron generation for homeland security applications in the INS-e device based on a conventional IEC configuration.
1. R. A. Nebel, D. C. Barnes, Fusion Technology 38, 28 (1998).
2. D. C. Barnes, R. A. Nebel, Physics of Plasmas 5, 2498 (1998).
3. J. Park, R. A. Nebel, S. Stange, S. K. Murali, Phys. Rev. Lett. 95, 15003 (2005).
4. J. Park, R. A. Nebel, S. Stange, S. K. Murali, Physics of Plasmas 12, 056315 (2005).
5. R. A. Nebel, S. Stange, J. Park, J. M. Taccetti, S. K. Murali, C. E. Garcia, Physics of
Plasmas 12, 12701 (2005).
6. R. A. Nebel, J. M. Finn, Physics of Plasmas 8, 1505 (2001).
Work supported by DOE contract W-7405-ENG-36.