Yes, as far as I'm aware that's essentially the theory. A pion torch uses pions through a magnetic nozzle to achieve ~10^6 Isp with the downside that lots of pr

Yes, as far as I'm aware that's essentially the theory. A pion torch uses pions through a magnetic nozzle to achieve ~10^6 Isp with the downside that lots of prompt radiation (gamma mostly but I'm no expert) goes every direction.