Why don't they use D&T in their beams. They would be lighter still and fusible too!
http://www.sciencedaily.com/releases/20 ... 091126.htm
Light Ions for Fast Ignition
Initially, the easiest path for ignition was taken using electrons, but it was soon recognized that numerous problems such as instabilities exists. The next logical step was to use ions, more specifically, protons. Subsequent experiments demonstrated that protons could be accelerated to relevant energies with conversion efficiencies of 5 to 10 percent and they were proposed as an alternative to relativistic electrons. However, the number of protons required for fast ignition is in order of magnitude two times greater than that of light ions that have a conversion efficiency of laser energy into ions of up to 25 percent.
Engineering is the art of making what you want from what you can get at a profit.
Yup, and with the proper isotope of Li, I can see it adding to the fuel load, maybe. But carbon, not so much. Between the Li and the proton (VERY low reactivity) is D&T. Should have better conversion efficiencies than protons and should add to the fuel load nicely. Hmmm.MSimon wrote:Initially, the easiest path for ignition was taken using electrons, but it was soon recognized that numerous problems such as instabilities exists. The next logical step was to use ions, more specifically, protons. Subsequent experiments demonstrated that protons could be accelerated to relevant energies with conversion efficiencies of 5 to 10 percent and they were proposed as an alternative to relativistic electrons. However, the number of protons required for fast ignition is in order of magnitude two times greater than that of light ions that have a conversion efficiency of laser energy into ions of up to 25 percent.
Maybe not. Just a thought.
..maybe the above + http://www.sciencedaily.com/releases/20 ... 181356.htm (Ultra-Dense Deuterium) - from some while ago.
both these areas fascinating. hope this research accelerates. (pardon the pun).
both these areas fascinating. hope this research accelerates. (pardon the pun).