Mean square displacement evaluation by elastic neutron scattering self-distribution function

被引:23
作者
Magazu, Salvatore [1 ,2 ]
Maisano, Giacomo [1 ,2 ]
Migliardo, Federica [1 ,2 ]
Benedetto, Antonio [1 ]
机构
[1] Univ Messina, Dipartimento Fis, I-98166 Messina, Italy
[2] Univ Messina, CNISM, I-98166 Messina, Italy
来源
PHYSICAL REVIEW E | 2008年 / 77卷 / 06期
关键词
D O I
10.1103/PhysRevE.77.061802
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
In the present work an operational recipe for the mean square displacement (MSD) determination, highlighting the connection between elastic incoherent neutron scattering (EINS) intensity profiles and the associated self-distribution function, is presented. The determination of the thermal behavior of the total MSD and of its partial contributions is tested on EINS data collected by the backscattering spectrometer IN13 (ILL, Grenoble) on a model system such as PolyEthylene Glycol with a mean molecular weight of 400 Dalton (PEG 400).
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页数:6
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