Author/Authors :
Bry?، نويسنده , , T. and Daum، نويسنده , , M. and Fierlinger، نويسنده , , P. and Geltenbort، نويسنده , , P. and George، نويسنده , , D. and Gupta، نويسنده , , M. and Henneck، نويسنده , , R. and Heule، نويسنده , , S. and Horvat، نويسنده , , M. and Kasprzak، نويسنده , , M. and Kirch، نويسنده , , K. and Kohlik، نويسنده , , K. and Negrazus، نويسنده , , M. and Pichlmaier، نويسنده , , A. and Straumann، نويسنده , , U. and Vrankovic، نويسنده , , V. and Wermelinger، نويسنده , , C.، نويسنده ,
Abstract :
We have built a novel apparatus for the investigation of materials for the storage of ultracold neutrons. Neutrons are filled into a storage volume, confined at the bottom by a magnetic field, at the top by gravity and at the sides by the slit-less sample surface under investigation. For different beryllium and diamond-like carbon samples, storage times up to 200 s were obtained at room temperature. The corresponding loss parameters η for ultracold neutrons varied between 4.2 and 6.8 × 10 - 4 per wall collision.
Keywords :
Diamond-like carbon , Ultracold neutron storage , Ultracold neutron losses , Anomalous losses , Magnetic mirrors , Ultracold neutrons
