Scattering data for modelling positron tracks in gaseous and liquid water

被引：46

作者：

Blanco, F. ^{[1
]}

Roldan, A. M. ^{[2
]}

Krupa, K. ^{[3
,4
]}

McEachran, R. P. ^{[5
]}

White, R. D. ^{[6
]}

Marjanovic, S. ^{[7
]}

Petrovic, Z. Lj ^{[7
]}

Brunger, M. J. ^{[8
,9
]}

Machacek, J. R. ^{[5
]}

Buckman, S. J. ^{[5
,9
]}

Sullivan, J. P. ^{[5
]}

Chiari, L. ^{[10
]}

Limao-Vieira, P. ^{[4
]}

Garcia, G. ^{[3
,11
]}

机构：

[1] Univ Complutense Madrid, Dept Fis Atom Mol & Nucl, E-28040 Madrid, Spain

[2] Ctr Invest Energet Medioambientales & Tecnol, Ave Complutense 22, E-28040 Madrid, Spain

[3] CSIC, Inst Fis Fundamental, Serrano 113-Bis, Madrid 28006, Spain

[4] Univ Nova Lisboa, Fac Ciencias & Tecnol, Dept Fis, Lab Colisoes Atom & Mol,CEFITEC, P-2829516 Caparica, Portugal

[5] Australian Natl Univ, Res Sch Phys & Engn, GPO Box 4, Canberra, ACT 0200, Australia

[6] James Cook Univ, Coll Sci Technol & Engn, Townsville, Qld 4810, Australia

[7] Univ Belgrade, Inst Phys, Pregrevica 118,POB 68, Zemun, Serbia

[8] Flinders Univ S Australia, Sch Chem & Phys Sci, GPO Box 2100, Adelaide, SA 5001, Australia

[9] Univ Malaya, Inst Math Sci, Kuala Lumpur, Malaysia

[10] Tokyo Univ Sci, Dept Phys, Shinjuku Ku, 1-3 Kagurazaka, Tokyo 1628601, Japan

[11] Univ Wollongong, Ctr Med Radiat Phys, Wollongong, NSW 2522, Australia

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2016年 / 49卷 / 14期

基金：

澳大利亚研究理事会;

关键词：

positron-molecule scattering; model potential calculations; Monte Carlo simulation; LOW-ENERGY-ELECTRON; CROSS-SECTIONS; SCREENING CORRECTIONS; POLYATOMIC-MOLECULES; ANNIHILATION; IMPACT; ATOMS; IONIZATION; TRANSPORT; STATES;

D O I：

10.1088/0953-4075/49/14/145001

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present in this study a self-consistent set of scattering cross sections for positron collisions with water molecules, in the energy range 0.1-10 000 eV, with the prime motivation being to provide data for modelling purposes. The structure of the database is based on a new model potential calculation, including interference terms, which provides differential and integral elastic as well as integral inelastic positron scattering cross sections for water molecules over the whole energy range considered here. Experimental and theoretical data available in the literature have been integrated into the database after a careful analysis of their uncertainties and their self-consistency. These data have been used as input parameters for a step-by-step Monte Carlo simulation procedure, providing valuable information on energy deposition, positron range, and the relative percentages of specific interactions (e.g. positronium formation, direct ionisation, electronic, vibrational and rotational excitations) in gaseous and liquid water.

引用

页数：10

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