Neutronic missile

The Neutronic missile was a weapon developed by the Thals near the end of the Thousand Year War. They placed all their remaining resources into it in the hope that would bring them victory in one decisive strike. Slave labor was used to pack the rocket's nose cone with distronic explosives. To reduce the weight, no shielding was provided, so the slaves would contract distronic toxaemia and die after a few hours' exposure. When Davros came to the Thal dome, he declared that he only desired peace and told them that the missile would not destroy the Kaled dome, but gave them a chemical formula which would weaken it enough to destroy it. (DW: Genesis of the Daleks)