Advantages of Fast Ignition Scenarios with Two Hot Spots for Space Propulsion Systems

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M.L. Shmatov (2009), JBIS, 62, 219-224

Refcode: 2009.62.219
Keywords: Nuclear pulse propulsion, fast ignition

Abstract:
The use of the fast ignition scenarios with the attempts to create two hot spots in one blob of the compressed thermonuclear fuel or, briefly, scenarios with two hot spots in space propulsion systems is proposed. The model, predicting that for such scenarios the probability pf of failure of ignition of thermonuclear microexplosion can be significantly less than that for the similar scenarios with the attempts to create one hot spot in one blob of the compressed fuel, is presented. For space propulsion systems consuming a relatively large amount of propellant, a decrease in pf due to the choice of the scenario with two hot spots can result in large, for example, two-fold, increase in the payload mass. Other advantages of the scenarios with two hot spots and some problems related to them are considered.

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