Jiro shrugged. "This reactor contains sixteen hundred fuel rods, grouped in assemblies of forty, so the failure of a single rod wouldn’t measurably affect performance. Even the ruptured rod still makes power, remember. It’s just that it would be spewing fuel fleas, fragments, and daughters into the rocket exhaust. We would expect to see a mixture of alpha, beta, and gamma—which is just what the Eenspektor is reporting."