| Presentation: | submitted: | by: |
|---|---|---|
| case_icc2007_poster.pdf | 2007-02-27 12:37:31 | Andrew Case |
A Plasma Jet Accelerator for the Maryland Centrifugal Experiment
Author: Andrew Case
Requested Type: Poster Only
Submitted: 2006-12-18 15:25:01
Co-authors: S.J.Messer, M.W.Phillips,F.D.Witherspoon
Contact Info:
HyperV Technologies Corp.
13935 Willard Road
Chantilly, VA 20151
USA
Abstract Text:
High velocity dense plasma jets are under development for a variety of fusion applications, including plasma refueling, magnetized target fusion, disruption mitigation, and injection of angular momentum into centrifugally confined mirrors. The approach uses symmetrical pulsed injection of very high density plasma into the breech of a coaxial EM accelerator having a tailored cross-section geometry to delay onset of the blow-by instability. The injected plasma is generated by 32 radially oriented capillary discharges arranged uniformly around the circumference of the angled annular injection region of the accelerator. The plasma jet system is undergoing final testing at HyperV prior to installation on MCX* in mid-January. The near term technical goal for this experiment is to drive rotations in the MCX central cell by tangentially injecting and trapping plasma blobs of roughly 60 micrograms at 60 km/s. Longer term goals for the accelerator are to achieve 100 micrograms at >200km/s. We are currently upgrading the pulse forming networks for both the main coaxial accelerator and the 32 capillary plasma injector discharges which provide the initial working plasma mass. These upgrades will allow significantly higher energy operation by extending the pulse length and by matching the load to eliminate ringing. Recent tests have observed plasma jets downstream of the accelerator using a fast gated PI-MAX camera. Additional spectroscopic measurements will provide data on jet temperature and velocity.
*See also posters by A. Hassam and R. Ellis at this conference.
**Research funded by the DOE Office of Fusion Energy Science through Grants DE-FG02-04ER83978, DE-FG02-05ER54810, DE-FG02-05ER84189.
Characterization: B2
Comments:
Please place next to HyperV's other two posters:
1) F.D.Witherspoon et al "Pulsed Injector Development for Dense Plasma Jets"
2) M.W. Phillips et al. "Numerical Studies of Pulsed Plasma Jets"
