Epithermal neutrons are unique probes for deep inelastic neutron scattering (DINS) at high-energy and high-momentum transfer and inelastic neutron scattering (INS) at high-energy and low-wave vector transfers. In the latter case the kinematic range has recently been revisited given that the high values of initial and final wave vectors achievable in a scattering process coupled to small scattering angles allow to access a so far unexplored region in q,w, i.e w > 1 eV and q < 10 A-1. In order to exploit DINS and INS in the high-energy and low-momentum range, a very low angle detector (VLAD) bank will be delivered within the e.VERDI Project together with a novel bank at intermediate scattering angles. The former will provide a new tool for investigating high-energy excitations in magnetic systems and semiconductors. The VLAD bank will be constructed following the concept of a resonance detector (RD) spectrometer, recently revised for DINS experiments in the range 1-100 eV.This is a more promising approach in terms of efficiency and signal-to-noise ratio compared to standard neutron counting techniques at eV energies. Results from two devices, cadmium zinc telluride (CZT) solid-state detectors and YAlO3 perovskite (YAP) scintillators used in RD configurations, will be presented.

Abdul Redah, T., Andreani, C., D'Angelo, A., Gorini, G., Imberti, S., Mayers, J., et al. (2004). Recent developments of the e.VERDI project at ISIS. PHYSICA. B, CONDENSED MATTER, 350, 837 [10.1016/j.physb.2004.03.217].

Recent developments of the e.VERDI project at ISIS

ANDREANI, CARLA;D'ANGELO, ANNALISA;IMBERTI, SILVIA;PIETROPAOLO, ANTONINO;SENESI, ROBERTO;
2004

Abstract

Epithermal neutrons are unique probes for deep inelastic neutron scattering (DINS) at high-energy and high-momentum transfer and inelastic neutron scattering (INS) at high-energy and low-wave vector transfers. In the latter case the kinematic range has recently been revisited given that the high values of initial and final wave vectors achievable in a scattering process coupled to small scattering angles allow to access a so far unexplored region in q,w, i.e w > 1 eV and q < 10 A-1. In order to exploit DINS and INS in the high-energy and low-momentum range, a very low angle detector (VLAD) bank will be delivered within the e.VERDI Project together with a novel bank at intermediate scattering angles. The former will provide a new tool for investigating high-energy excitations in magnetic systems and semiconductors. The VLAD bank will be constructed following the concept of a resonance detector (RD) spectrometer, recently revised for DINS experiments in the range 1-100 eV.This is a more promising approach in terms of efficiency and signal-to-noise ratio compared to standard neutron counting techniques at eV energies. Results from two devices, cadmium zinc telluride (CZT) solid-state detectors and YAlO3 perovskite (YAP) scintillators used in RD configurations, will be presented.
Pubblicato
Rilevanza internazionale
Articolo
Sì, ma tipo non specificato
Settore FIS/07 - Fisica Applicata(Beni Culturali, Ambientali, Biol.e Medicin)
English
Con Impact Factor ISI
Cadmium compounds; Kinematics; Magnetic resonance spectrometers; Magnetism; Neutron detectors; Phosphors; Semiconducting tellurium; Semiconductor materials; Signal to noise ratio; Deep inelastic neutron scattering (DINS); Magnetic systems; Neutron instruments; Very low angle detectors (VLAD); Neutron scattering
Abdul Redah, T., Andreani, C., D'Angelo, A., Gorini, G., Imberti, S., Mayers, J., et al. (2004). Recent developments of the e.VERDI project at ISIS. PHYSICA. B, CONDENSED MATTER, 350, 837 [10.1016/j.physb.2004.03.217].
Abdul Redah, T; Andreani, C; D'Angelo, A; Gorini, G; Imberti, S; Mayers, J; Newport, R; Pietropaolo, A; Rhodes, N; Schooneveld, E; Senesi, R; Tardocchi, M; Tomkinson, J
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/30630
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