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IN22 at work The aim of the experiment presented here was to measure the neutron scattering from liquid indium . This was never measured before since the expected scattering signal is nearly zero for

Granit - A 2nd-generation gravitational neutron spectrometer The existence of quantum states of matter in the gravitational field has been demonstrated for the very first time at the ILL by a series o

Quantum state of matter in a gravitational field was first observed with neutrons in 2000 But why neutrons? As gravitation is a very weak force, quantum phenomena can only be observed using very small

Principle of the experiment Long-living centrifugal quantum states. a) The observed scattering probability as a function of neutron wavelength λ and deviation angle φ. b) Theoretical simulation of the

A view of the instrument housing By 2009, the instrument GRANIT was being built in the reactor hall of the ILL. We see here its housing located on the left side of the guide shielding and close to the

Simulated TAS experiment The animation shows the principle of a neutron inelastic scattering experiment with IN20 by means of the classical three axis spectrometry (TAS). The polychromatic beam from t

IN20 and the TASSE spectrometry The movie shows the very first steps of an experiment performed on IN20 in 2008 on parahydrogen. The instrument was operated in the TASSE mode combing both neutron trip

Doppler monochromator The movie shows the old mechanical Doppler drive of IN16. On IN16B a linear motor Doppler drive (AEROLAS) is in operation. It follows the same principle but achieves higher monoc

Instrument layout

IN4C - High-flux time-of-flight spectrometer IN4C is a high-flux time-of-flight spectrometer used for the study of excitations in condensed matter. It works in the thermal neutron energy range (10-100