Burn Characteristics of Marginal Deuterium-Tritium Microspheres

Long mean free paths for ions in the tail of the distribution may allow escape, quenching the burn of marginal ($\rho R<\mathrm{}{10}^{-2\mathrm{}}$ g/${\mathrm{cm}}^2$) deuterium-tritium microspheres, possibly explaining the lack of success in experiments to date.