Ultracold-neutron infrastructure for the gravitational spectrometer GRANIT
arXiv:0811.1635 · doi:10.1016/j.nima.2009.07.096
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.
accepted for publication in Proceedings International Workshop on Particle Physics with Slow Neutrons
References in corpus (7)
- A New Constraint for the Coupling of Axion-like particles to Matter via Ultra-Cold Neutron Gravitational Experiments
- A method to measure the resonance transitions between the gravitationally bound quantum states of neutrons in the GRANIT spectrometer
- UCN production by multiphonon processes in superfluid Helium under pressure
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- A source of ultra-cold neutrons for the gravitational spectrometer GRANIT
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Cited by in corpus (9)
- New source for ultracold neutrons at the Institut Laue-Langevin
- Probing Dark Energy models with neutrons
- Constraints on spin-dependent short-range interactions using gravitational quantum levels of ultracold neutrons
- Gravitational resonance spectroscopy with an oscillating magnetic field gradient in the GRANIT flow through arrangement
- UCN sources at external beams of thermal neutrons. An example of PIK reactor
- Status of the GRANIT facility
- Internal Consistency of Neutron Coherent Scattering Length Measurements from Neutron Interferometry and from Neutron Gravity Reflectometry for Exotic Yukawa Analyses
- Precision Measurement of the Position-space Wave Functions of Gravitationally Bound Ultracold Neutrons
- Design and test of a compact and high-resolution time-of-flight measurement device for cold neutron beams