FREE-VOLUME HOLE DISTRIBUTIONS OF POLYMERS PROBED BY POSITRON-ANNIHILATION SPECTROSCOPY - EXPERIENCES OF USING THE CONTIN PROGRAM

被引：52

作者：

JEAN, YC

DAI, GH

机构：

[1] Department of Chemistry, University of Missouri-Kansas City, Kansas City

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1993年 / 79卷 / 1-4期

关键词：

D O I：

10.1016/0168-583X(93)95363-A

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A Laplace inversion technique has been employed to invert positron annihilation lifetime spectra to continuous lifetime distributions by using the CONTIN program. Free-volume hole distributions are determined directly from the results of ortho-positronium distributions. The obtained lifetime distributions are highly affected by various experimental factors: the statistics, the instrument instability, and the choice of the reference spectrum. Experiences of using the CONTIN program for the determination of free-volume hole distributions of polymers are discussed,

引用

页码：356 / 361

页数：6

共 9 条

[1] FREE-VOLUME DISTRIBUTIONS OF AN EPOXY POLYMER PROBED BY POSITRON-ANNIHILATION - TEMPERATURE-DEPENDENCE [J].