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"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.

"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.

"If you invented a neutron gun which could kill through tungsten walls without injuring anything within, a system of accelerating a ship that didn't affect the inhabitants of that ship, and a means of exceeding the speed of light, all within a few months of each other, would you become a pirate? I wouldn't, and I don't think any one else would.

Rip added it to the front of the plutonium wedge along with a piece of beryllium from the bomb, and Kemp welded it in place. They put the thorium block which contained the plutonium into the hole, the plutonium facing outward. Trudeau rammed it to the bottom with his pole. The neutron source, the neutron reflector, and one piece of fissionable material were in place.

"Huh, that can be completed any time you want to listen to some plain facts about " "I'll never listen to anything you have to say, you dried-up old neutron chaser!" blasted Connel. "Of course not," cackled Sykes. "And it's the same bullheaded stubbornness that'll keep you from finishing that recorder." "I'm sorry, gentlemen," said Walters firmly.

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.

Their single five KT bomb contained at least enough plutonium for two critical masses, if brought together inside a good neutron reflector. Each mass should give about a two kiloton explosion. And they did have a good neutron reflectornuclite. There wasn’t anything better for the purpose. "What have we got for a neutron source?" he asked aloud.

"Yes I got a report on that of 'finished' last week. How have you made out?" Buck Kendall's face fell. "Not so hot. Devin's been the biggest help he did most of the work on that neutron gun really " "After," McLaurin interrupted, "you told him how." " but we're pretty well stuck now, it seems. You'll be off duty tomorrow evening, can't you drop around to the lab?

They gave me just ten millions, and that only because you demonstrated you could shoot every living thing out of the latest IP cruiser with that neutron gun of yours. By the way, they may kick when I don't install more than a few of those." "Let 'em. You can stall for a few months. You'll need that money more for other purposes. You've installed that paraffin lining?"

The Mirans were dodging these now as they loosed atomic bombs, only to see them exploded harmlessly by neutron guns, or caught in the magnetic screen. Gamma ray bombs were as useless. Again the beam of disintegrating force was turned on The present opponent was not a ship.