TY - JOUR
T1 - Mass-selective neutron spectroscopy beyond the proton
AU - Krzystyniak, M.
AU - Seel, A. G.
AU - Richards, S. E.
AU - Gutmann, M. J.
AU - Fernandez-Alonso, F.
N1 - Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2014
Y1 - 2014
N2 - We discuss ongoing methodological developments underpinning the determination of nuclear-momentum distributions from mass-resolved neutron Compton data of lightweight materials. To this end, two systems are considered in detail, namely, lithium hydride (including its deuterated counterpart) and squaric acid, an organic antiferroelectric material containing hydrogen, carbon, and oxygen. Beyond the usual case of the proton, our approach enables direct access to detailed line shape information associated with the underlying nuclear-momentum distributions of both deuterium and lithium. For oxygen and carbon, mean kinetic energies can also be obtained directly from the neutron data, as demonstrated by a detailed analysis of mass- resolved data from squaric acid. From an instrumentation point of view, this work provides a suitable platform for a detailed assessment of existing capabilities and future developments in mass-selective neutron spectroscopy on the VESUVIO spectrometer at ISIS.
AB - We discuss ongoing methodological developments underpinning the determination of nuclear-momentum distributions from mass-resolved neutron Compton data of lightweight materials. To this end, two systems are considered in detail, namely, lithium hydride (including its deuterated counterpart) and squaric acid, an organic antiferroelectric material containing hydrogen, carbon, and oxygen. Beyond the usual case of the proton, our approach enables direct access to detailed line shape information associated with the underlying nuclear-momentum distributions of both deuterium and lithium. For oxygen and carbon, mean kinetic energies can also be obtained directly from the neutron data, as demonstrated by a detailed analysis of mass- resolved data from squaric acid. From an instrumentation point of view, this work provides a suitable platform for a detailed assessment of existing capabilities and future developments in mass-selective neutron spectroscopy on the VESUVIO spectrometer at ISIS.
UR - http://www.scopus.com/inward/record.url?scp=84918774166&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/571/1/012002
DO - 10.1088/1742-6596/571/1/012002
M3 - Conference article
AN - SCOPUS:84918774166
SN - 1742-6588
VL - 571
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 1
M1 - 012002
T2 - 6th Workshop in Electron Volt Neutron Spectroscopy: Frontiers and Horizons
Y2 - 20 January 2014 through 21 January 2014
ER -