The use of ultracold neutrons for measurement of the neutron lifetime
Kosvintsev Yu.Yu. , Kushnir Yu.A. , Morozov V.I. , Terekhov G.I.
A method of measuring the neutron lifetime by storing ultracold neutrons (UCN) in an aluminum container is described. A method of measuring the loss of UCN in the container walls is proposed. The losses were measured by varying the number of collisions per unit time. The systematic measurement errors are given and possible ways to reduce them are discussed.