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Persistent URL
http://purl.org/net/epubs/work/65334
Record Status
Checked
Record Id
65334
Title
From neutron Compton profiles to momentum distribution: Assessment of direct numerical determination
Contributors
R Senesi (Università degli Studi di Roma Tor Vergata)
,
D Flammini (Università degli Studi di Roma Tor Vergata)
,
G Romanelli (Università degli Studi di Roma Tor Vergata)
,
C Andreani (Università degli Studi di Roma Tor Vergata)
Abstract
Inelastic neutron scattering at high momentum transfers, in the neutron Compton scattering regime, provides an access to the neutron Compton profiles, the analogous of Compton profiles in X-ray scattering. The line shape analysis of the neutron Compton profiles is usually carried out making use of multiparametric nonlinear fitting, garnering detailed information about the momentum distribution of the target atoms. This paper presents the proposal to directly determine numerically the momentum distribution from the profiles, thus eliminating the possible instabilities present in multiparametric fitting. A comparison with Monte Carlo simulations and with previous measurements on polycrystalline ice provides quantitative assessments of the proposed method.
Organisation
ISIS
,
ISIS-VESUVIO
,
STFC
Keywords
ISIS 2012
,
Inelastic neutron scattering
,
Neutron Compton scattering
,
Momentum distributions
Funding Information
Related Research Object(s):
Licence Information:
Language
English (EN)
Type
Details
URI(s)
Local file(s)
Year
Journal Article
Nucl Instrum Meth A
704 (2013): 36-39.
doi:10.1016/j.nima.2012.12.049
2013
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