INELASTIC NEUTRON-SCATTERING STUDY OF FREE PROTON DYNAMICS IN COAL

被引：21

作者：

FILLAUX, F

PAPOULAR, R

BENNINGTON, SM

TOMKINSON, J

机构：

[1] CENS,SERV ASTROPHYS,F-91191 GIF SUR YVETTE,FRANCE

[2] RUTHERFORD APPLETON LAB,DIDCOT OX11 0QX,OXON,ENGLAND

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 1995年 / 188卷 / 1-2期

关键词：

D O I：

10.1016/0022-3093(95)00101-8

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Inelastic neutron scattering is unique to observe protons in solids. New measurements for a coal sample (sub-bituminous A) for large energy and momentum transfers reveal peaks of intensity due to the vibrations of protons bound to heavy atoms and a ridge of intensity due to recoil of free protons. The dynamics are represented as a gas of free particles (bare protons) in a box with walls made of bound protons. Even for the sample at 2 K free protons are not at rest. Their mean kinetic energy corresponds to the mean energy of the bound protons.

引用

页码：161 / 168

页数：8

共 23 条

[1] SOLID-STATE MAGNETIC-RESONANCE SPECTRA OF ILLINOIS NO-6 COAL AND SOME REDUCTIVE ALKYLATION PRODUCTS [J].