![]() The kinetic energy of the 1000 tonnes at 100 million m/s is 5.4601e+21 Joules. That's 290 times the global primary energy supply in 2013. That 914 tonnes of antimatter would require twice that in mass-energy to produce - at minimum. You see, for a 1000 tonne ship, you'd need 914 tonnes of antimatter and another 914 tonnes of normal matter. So let's be more reasonable and lower the deltav to 100 million m/s. Photon rockets might, but they'd have even worse power requirements. Keep in mind this is antimatter, rockets don't get much better than this. Solving for the mass ratio and using 100 million m/s as the exhaust velocity, I get a mass ratio of 51.84. We can use the relativistic rocket equation to solve for the mass ratio required to reach 0.866c. Let's say we have an antimatter beam core rocket with an exhaust velocity of 100 million meters per second. ![]() ![]() Even assuming that efficiency, that would take 2 kg of mass-energy to make 1 kg of antimatter. Manufacturing antimatter takes, at a minimum, twice its rest mass energy (because such reactions generate normal matter as well). The kinetic energy of an object moving at 0.866c is about equal to its rest mass energy. ![]() But doing so would require some advanced technology we just don't have.Īntimatter initiated nuclear drives are promising, but it seems you can do the same without antimatter using either Z-Pinch or some other clever methods.īut even beyond that, once you have the energy to manufacture large amounts of antimatter you would have better uses for that energy. ![]()
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