SEVEN: Epsilon radiation is one the by-products of a tetryon reactor. According to your own entries in the database your only encounter with that kind of technology occurred five years ago in the Alpha quadrant. A coherent tetryon beam locked onto Voyager, and you were hit by a massive displacement wave, which pulled you across seventy thousand light years in a matter of minutes. The source of that tetryon beam was the Caretaker's array. Mister Tash claims that his catapult will be able to do something very similar.