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"This thing is so tiny, that it may escape their observation in the fields of the T-247 and Pluto down there. It's our only hope." "What happened? How in the name of the planets did they kill those men without a sound, without a flash, and without even warning us, or injuring us?" "Neutrons don't you see?" "Frankly, I don't. I'm no scientist merely a technician.
We get a slight heating from it, anyway. Into the bargain, his radio was after us, and his neutrons naturally carried energy. Now, no matter what we do, we've got that to handle. When we fight his crumbler, we actually add heat-energy to it, ourselves, and make the heating effect just twice as bad.
"Sir, some of the stuff left in the craters from the other explosions gives off neutrons." "You're right," Rip agreed instantly. A small piece from one of the craters, when combined with half of the neutron source in the bomb, should be enough. As for the explosive, they had exploding heads on their attack rockets.
First, two or more pieces of plutonium large enough to form a critical mass. Second, a neutron source—some material with the type of radioactivity that produced neutrons—to start the reaction. Third, some kind of neutron reflector. And fourth, explosive to drive the pieces together. Did they have all those items? He checked them off.
First, two or more pieces of plutonium large enough to form a critical mass. Second, a neutron source the type of radioactivity that produced neutrons to accelerate the reaction. Third, some kind of neutron reflector. And fourth, explosive to drive the pieces together. Did they have all those items? He checked them off.
Neutrons ont gister instruments. I think is h he's coming over the horizon. It's huge, and a war ship I think register instruments neutrons." Kendall's finger stabbed out at a button. Instantly the noise of the other men, wakened abruptly by the mild shocks, came from behind. Kendall swung to the controls, and Cole raced back to the engine room.
From the far horizon of the asteroid the incandescent fire of the nuclear blast stretched into space, turning from silver to orange to red as it cooled. Rip knew they had escaped the heat and blast of the explosion, but now there was a question of how much prompt radiation they had absorbed. During the first few seconds, a nuclear blast sprayed gamma radiation and neutrons in all directions.
"That ship that attacked us, attacked with a neutron gun, a gun that shot neutrons through the hull of our ship as easily as protons pass through open space. Those neutrons killed off four of the crew, and spared us only because we happened to be behind the water tanks. Masses of hydrogen will stop neutrons, so we lived, and escaped in the tender.
We got some prompt radiation." "When was that? The exact time?" Rip tried to remember. He felt horrible. "It was twenty-three-oh-five." "Bad," the voice said. "He must have taken enough roentgens of gamma and neutrons to reach or exceed the median-lethal dose." Rip found his voice again. "Santos," he said urgently. "On the asteroid. He got it, too. The rest were shielded." MacFife snapped orders.
He was really asking himself, but he got a quick answer from Koa. "Sir, some of the stuff left in the craters from the other explosions gives off neutrons." "You’re right," Rip agreed instantly. A small piece from one of the craters, when combined with half of the neutron source in the bomb, should be enough. As for the explosive, they had exploding heads on their attack rockets.
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