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Recent developments of the e.VERDI project at ISIS

Abdul-Redah, T, Andreani, C, D’Angelo, A, Gorini, G, Imberti, S, Mayers, J, Newport, Robert J., Pietropaolo, A, Rhodes, N.J, Schooneveld, E.M, and others. (2004) Recent developments of the e.VERDI project at ISIS. Physica B: Condensed Matter, 350 (1-3). E837-E840. ISSN 0921-4526. (doi:10.1016/j.physb.2004.03.217) (KAR id:73521)

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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,ω, i.e ω>1 eV and q<10 Å−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.

Item Type: Article
DOI/Identification number: 10.1016/j.physb.2004.03.217
Uncontrolled keywords: Neutron instrument, Detector, Deep inelastic neutron scattering
Divisions: Divisions > Division of Natural Sciences > Physics and Astronomy
Depositing User: Robert Newport
Date Deposited: 17 Apr 2019 08:57 UTC
Last Modified: 16 Nov 2021 10:26 UTC
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Newport, Robert J.:
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