Biophysical applications of neutron Compton scattering

被引：1
|
作者：
Wanderlingh, UN
Albergamo, F
Hayward, RL
Middendorf, HD
机构：
[1] Univ Oxford, Clarendon Lab, Oxford OX1 3PU, England
[2] Western Gen Hosp, Dept Clin Oncol, Edinburgh EH4 2GX, Midlothian, Scotland
[3] CEA Saclay, Leon Brillouin Lab, I-91191 Gif Sur Yvette, France
[4] Univ Messina, Dipartimento Fis, I-98166 Messina, Italy
[5] INFM, I-98166 Messina, Italy
来源：
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2002年 / 74卷 / Suppl 1期
关键词：
D O I：
10.1007/s003390101218
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Neutron Compton scattering (NCS) can be applied to measuring nuclear momentum distributions and potential parameters in molecules of biophysical interest. We discuss the analysis of NCS spectra from peptide models, focusing on the characterisation of the amide proton dynamics in terms of the width of the H-bond potential well, its Laplacian, and the mean kinetic energy of the proton. The Sears expansion is used to quantify deviations from the high-Q limit (impulse approximation), and line-shape asymmetry parameters are evaluated in terms of Hermite polynomials. Results on NCS from selectively deuterated acetanilide are used to illustrate this approach.
引用
收藏
页码：S1283 / S1286
页数：4
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