| Autor: |
Robert B. Adams, Ross Cortez, Jason Cassibry, Leo Fabisinski, M. Turner, Sharon Fincher, Tom Percy, C. D. Maples, Geoffrey Statham, J. H. Miernik, Tara Polsgrove |
| Rok vydání: |
2013 |
| Předmět: |
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| Zdroj: |
Acta Astronautica. 82:173-182 |
| ISSN: |
0094-5765 |
| DOI: |
10.1016/j.actaastro.2012.02.012 |
| Popis: |
Fusion-based nuclear propulsion has the potential to enable fast interplanetary transportation. Due to the great distances between the planets of our solar system and the harmful radiation environment of interplanetary space, high specific impulse ( I sp ) propulsion in vehicles with high payload mass fractions must be developed to provide practical and safe vehicles for human space flight missions. The Z-Pinch dense plasma focus method is a Magneto-Inertial Fusion (MIF) approach that may potentially lead to a small, low cost fusion reactor/engine assembly [1] . Recent advancements in experimental and theoretical understanding of this concept suggest favorable scaling of fusion power output yield [2] . The magnetic field resulting from the large current compresses the plasma to fusion conditions, and this process can be pulsed over short timescales (10 −6 s). This type of plasma formation is widely used in the field of Nuclear Weapons Effects testing in the defense industry, as well as in fusion energy research. A Z-Pinch propulsion concept was designed for a vehicle based on a previous fusion vehicle study called “Human Outer Planet Exploration” (HOPE), which used Magnetized Target Fusion (MTF) [3] propulsion. The reference mission is the transport of crew and cargo to Mars and back, with a reusable vehicle. The analysis of the Z-Pinch MIF propulsion system concludes that a 40-fold increase of I sp over chemical propulsion is predicted. An I sp of 19,436 s and thrust of 3812 N s/pulse, along with nearly doubling the predicted payload mass fraction, warrants further development of enabling technologies. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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Full Text from ScienceDirect