Publications (10)
Ergodicity breaking in strong and network-forming glassy system
S. Caponi, M. Zanatta, A. Fontana +5
The temperature dependence of the non-ergodicity factor of vitreous GeO, , as deduced from elastic and quasi-elastic neutron scattering experiments, is analyzed. The…
IRIDE White Book, An Interdisciplinary Research Infrastructure based on Dual Electron linacs&lasers
D. Alesini, M. Alessandroni, M. P. Anania +211
This report describes the scientific aims and potentials as well as the preliminary technical design of IRIDE, an innovative tool for multi-disciplinary investigations in a wide fi…
Direct experimental evidence of free fermion antibunching
M. Iannuzzi, A. Orecchini, F. Sacchetti +2
Fermion antibunching was observed on a beam of free noninteracting neutrons. A monochromatic beam of thermal neutrons was first split by a graphite single crystal, then fed to two…
Superradiant Thomson scattering from graphite in the extreme ultraviolet
C. Fasolato, E. Stellino, E. Principi +6
We study the Thomson scattering from highly oriented pyrolitic graphite excited by the extreme ultraviolet, coherent pulses of FERMI free electron laser (FEL). An apparent nonlinea…
Pulse shape analysis of neutron signals in Si-based detectors
G. Mauri, M. Mariotti, F. Casinini +2
A series of test experiments on three different Si-based neutron detectors, namely a 1-d 128 channel, 0.5 mm space resolution Si microstrip sensor coupled to natural Gd converter,…
Progress towards Bell-type polarization experiment with thermal neutrons
M. Iannuzzi, R. Messi, D. Moricciani +2
Experimental tests of Bell-type inequalities distinguishing between quantum mechanics and local realistic theories remain of considerable interest if performed on massive particles…
Further evidence of antibunching of two coherent beams of fermions
M. Iannuzzi, R. Messi, D. Moricciani +4
We describe an experiment confirming the evidence of the antibunching effect on a beam of non interacting thermal neutrons. The comparison between the results recorded with a high…
Role of charge doping and lattice distortions in codoped Mg_{1-x}(AlLi)_{x}B_2 compounds
M. Monni, C. Ferdeghini, P. Manfrinetti +10
We prepared a series of Mg_{1-x}(AlLi)_{x}B_2 samples with 0≤x≤0.45 in order to compensate with Li the electron doping induced by Al. Structural characterization by mea…
Real-time observation of the isothermal crystallization kinetics in a deeply supercooled liquid
M. Zanatta, L. Cormier, L. Hennet +2
Below the melting temperature crystals are the stable phase of typical elemental or molecular systems. However, cooling down a liquid below , crystallization is anything…
Disentangling time-focusing from beam divergence: a novel approach for high-flux thermal neutron spectroscopy at continuous and long-pulse sources
M. Zanatta, K. H. Andersen, P. P. Deen +4
We present the concept of a novel time-focusing technique for neutron spectrometers, which allows to disentangle time-focusing from beam divergence. The core of this approach is a…