The effect of pellet volume and aspect ratio on fuel pellet exit velocities in a capillary discharge mass accelerator

T. E. Gebhart, R. T. Holladay, M. J. Esmond, Leigh Winfrey

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

In magnetic or inertial fusion reactors, hydrogen, its isotopes, and lithium are used as fusion fueling materials. Lithium is considered a fusion fuel and not an impurity in fusion reactors as it can be used to produce fusion energy and breed fusion products. Lithium hydride and lithium deuteride may serve as good ablating sleeves for plasma formation in an ablation-dominated electrothermal plasma source to propel fusion pellets. Previous studies have shown that pellet exit velocities greater than 3 km/s are possible using low-z propellant materials. In this work, a comprehensive study of solid lithium hydride and deuteride as a pellet propellant is conducted using the ETFLOW code. Relationships between propellants, source and barrel geometry, pellet volume and aspect ratio, and pellet velocity are determined for pellets ranging in volume from 1 to 100 mm3.

Original languageEnglish (US)
Title of host publication2013 IEEE 25th Symposium on Fusion Engineering, SOFE 2013
DOIs
StatePublished - Dec 23 2013
Event2013 IEEE 25th Symposium on Fusion Engineering, SOFE 2013 - San Francisco, CA, United States
Duration: Jun 10 2013Jun 14 2013

Publication series

Name2013 IEEE 25th Symposium on Fusion Engineering, SOFE 2013

Conference

Conference2013 IEEE 25th Symposium on Fusion Engineering, SOFE 2013
CountryUnited States
CitySan Francisco, CA
Period6/10/136/14/13

All Science Journal Classification (ASJC) codes

  • Software

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    Gebhart, T. E., Holladay, R. T., Esmond, M. J., & Winfrey, L. (2013). The effect of pellet volume and aspect ratio on fuel pellet exit velocities in a capillary discharge mass accelerator. In 2013 IEEE 25th Symposium on Fusion Engineering, SOFE 2013 [6635502] (2013 IEEE 25th Symposium on Fusion Engineering, SOFE 2013). https://doi.org/10.1109/SOFE.2013.6635502