Abstract
We have built a target transport system (rabbit) for β-decay studies which permits the use of thin target foils and which operates entirely in vacuum. We use the force which a current carrying solenoid exerts on an iron bar to both accelerate and brake the rabbit. The target is attached to a long tantalum strip which projects from the iron support. In the system described here, the rabbit moves up and down a vertical path of 1 m, allowing lifetimes as short as 0.1 s to be studied. Photo interruptors are used to sense the position of the rabbit in relation to a beam chopper and to activate the logic which controls the sequence of events.
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