Epithermal neutron instrumentation at ISIS

6th Workshop in Electron Volt Neutron Spectroscopy: Frontiers and Horizons

Gorini, G.^1 ; Festa, G.^2,3,4 ; Andreani, C.^2,3

Università Degli Studi di Milano-Bicocca, Milan, Italy^1

Università Degli Studi di Roma Tor Vergata, Rome, Italy^2

CNR-IPCF, Messina, Italy^3

CNR-IFP, Milan, Italy^4

关键词: Cultural heritage studies;    Epithermal neutron beams;    Isotopic composition;    Pulsed neutron sources;    Resonance detectors;    Spallation neutron sources;    Special applications;    Specific properties;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/571/1/012005/pdf
DOI  :  10.1088/1742-6596/571/1/012005

来源: IOP

【 摘 要 】

The advent of pulsed neutron sources makes available high epithermal neutron fluxes (in the energy range between 500 meV and 100 eV). New dedicated instrumentation, such as Resonance Detectors, was developed at ISIS spallation neutron source in the last years to apply the specific properties of this kind of neutron beam to the study of condensed matter. New detection strategies like Filter Difference method and Foil Cycling Technique were also developed in parallel to the detector improvement at the VESUVIO beamline. Recently, epithermal neutron beams were also used at the INES beamline to study elemental and isotopic composition of materials, with special application to cultural heritage studies. In this paper we review a series of epithermal neutron instrumentation developed at ISIS, their evolution over time and main results obtained.