Helium film may greatly increase the storage time of ultracold neutrons in material traps
P. D. Grigoriev,
A. M. Dyugaev
Abstract:We propose a method to increase both the neutron storage time and the precision of its lifetime measurements by at least tenfold. The storage of ultracold neutrons (UCN) in material traps now provides the most accurate measurements of neutron lifetime and is used in many other experiments. The precision of these measurements is limited by the interaction of UCN with the trap walls. We show that covering of trap walls with liquid helium may strongly decrease the UCN losses from material traps. 4 He does not abs… Show more
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