| Ultracold-neutron infrastructure for the gravitational spectrometer GRANIT (2008) | |||||||||
Abstract | |||||||||
| The gravitational spectrometer GRANIT will be set up at the Institut Laue Langevin. It will profit from the high ultracold neutron density produced by a dedicated source. A monochromator made of crystals from graphite intercalated with potassium will provide a neutron beam with 0.89 nm incident on the source. The source employs superthermal conversion of cold neutrons in superfluid helium, in a vessel made from BeO ceramics with Be windows. A special extraction technique has been tested which feeds the spectrometer only with neutrons with a vertical velocity component v < 20 cm/s, thus keeping the density in the source high. This new source is expected to provide a density of up to 800 1/cm3 for the spectrometer.. Comment: accepted for publication in Proceedings International Workshop on Particle Physics with Slow Neutrons | |||||||||
Details der Publikation | |||||||||
| |||||||||