FREE-VOLUME DISTRIBUTIONS OF POLYMERS BY POSITRON-ANNIHILATION SPECTROSCOPY - FURTHER EXPERIENCES IN USING CONTIN FOR CONTINUOUS LIFETIME DISTRIBUTIONS

被引：17

作者：

DAI, GH ^{[1
]}

JEAN, YC ^{[1
]}

机构：

[1] UNIV MISSOURI, DEPT CHEM, KANSAS CITY, MO 64110 USA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1995年 / 99卷 / 1-4期

关键词：

D O I：

10.1016/0168-583X(94)00751-9

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Thorough examinations of the CONTIN program were carried out by using the simulated positron lifetime spectra, to reveal the capability of CONTIN in the reconstruction of the positron lifetime distributions. It is shown that: 1) very high statistics is strongly desired by CONTIN to reproduce reliable lifetime distributions; 2) improving the time resolution of the measurement system, to the level of 0.030 ns full width at half maximum, does not significantly improve the resolving power of CONTIN; and 3) reducing the time width per channel is a practical way of improving the reconstruction of the lifetime probability density functions by CONTIN.

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收藏

页码：357 / 362

页数：6

相关论文

共 20 条

[1] FREE-VOLUME HOLE DISTRIBUTIONS OF POLYMERS BY POSITRON-ANNIHILATION LIFETIME SPECTROSCOPY [J].

DAI, GH ;

DENG, Q ;

LIU, J ;

SHI, H ;

HUANG, CM ;

JEAN, YC .

JOURNAL DE PHYSIQUE IV, 1993, 3 (C4) :233-239

[2]

DAI GH, 1994, THESIS U MISSOURI KA

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

DENG, Q ;

ZANDIEHNADEM, F ;

JEAN, YC .

MACROMOLECULES, 1992, 25 (03) :1090-1095

[4]

Gregory R.B., 1988, POSITRON ANNIHILATIO, P524

[5] ANALYSIS OF POSITRON-ANNIHILATION LIFETIME DATA BY NUMERICAL LAPLACE INVERSION - CORRECTIONS FOR SOURCE TERMS AND ZERO-TIME SHIFT ERRORS [J].

GREGORY, RB .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1991, 302 (03) :496-507

[6] FREE-VOLUME AND PORE-SIZE DISTRIBUTIONS DETERMINED BY NUMERICAL LAPLACE INVERSION OF POSITRON-ANNIHILATION LIFETIME DATA [J].

GREGORY, RB .

JOURNAL OF APPLIED PHYSICS, 1991, 70 (09) :4665-4670

[7] ANALYSIS OF POSITRON-ANNIHILATION LIFETIME DATA BY NUMERICAL LAPLACE INVERSION WITH THE PROGRAM CONTIN [J].

GREGORY, RB ;

ZHU, YK .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1990, 290 (01) :172-182

[8]

GREGORY RB, 1993, CONTIN PLAS2 MODIFIC

[9] LINEAR AND NONLINEAR APPROACHES TO SOLVE THE INVERSE PROBLEM - APPLICATIONS TO POSITRON-ANNIHILATION EXPERIMENTS [J].

HOFFMANN, L ;

SHUKLA, A ;

PETER, M ;

BARBIELLINI, B ;

MANUEL, AA .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1993, 335 (1-2) :276-287

[10] FREE-VOLUME HOLE DISTRIBUTIONS OF POLYMERS PROBED BY POSITRON-ANNIHILATION SPECTROSCOPY - EXPERIENCES OF USING THE CONTIN PROGRAM [J].

JEAN, YC ;

DAI, GH .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1993, 79 (1-4) :356-361