Author/Authors :
Strelkov، نويسنده , , A.V and Nesvizhevsky، نويسنده , , V.V. and Geltenbort، نويسنده , , P and Kartashov، نويسنده , , D.G and Kharitonov، نويسنده , , A.G and Lychagin، نويسنده , , E.V. and Muzychka، نويسنده , , Yu. and Pendlebury، نويسنده , , J.M and Schreckenbach، نويسنده , , K and Shvetsov، نويسنده , , V.N and Serebrov، نويسنده , , A.P and Taldaev، نويسنده , , R.R and Yaidjiev، نويسنده , , P، نويسنده ,
Abstract :
Ultra-cold neutrons (UCN) can be stored in a trap if their energy is lower than the trap wall potential. It is well known that the neutron density in a trap decreases due to neutron beta-decay, upscattering and absorption on surfaces but we have identified a complementary escape channel. This arises from a small increase in the energy of UCN during their interaction with a surface. Higher-energy neutrons can then escape into the bulk material or penetrate through the trap wall if it is thin enough.
