Simulation of the relative damaging effects of Auger cascades with gel scintillators.

Abstract:

PURPOSE:The aim of this work is to study the relative damaging effects of DNA-incorporated radionuclides by analyzing the behavior of the liquid-scintillation counting efficiency in volumes of nanometer size. METHODS:A liquid scintillation counter can detect changes in the micelle size when different percentages of an aqueous solution containing an Auger-electron-emitting radionuclide are incorporated to a gel scintillator. The counting efficiency can be used as an indicator of the nature of the stochastic processes occurring within the micelle structure. RESULTS:Because a large variation in the micelle size only perturbates the counting efficiency slightly, the accuracy of the method is poor. The application of tracing methods, which involve the calculation of the Auger cascades and the deposition of energy within nanometric spheres, can improve the accuracy of the results. CONCLUSIONS:Some steps in the complete simulation of the damaging efficiency can be obviated with the use of a tracer.

journal_name

Int J Radiat Biol

authors

Grau Carles A

doi

10.1080/09553000802460156

subject

Has Abstract

pub_date

2008-12-01 00:00:00

pages

1057-62

issue

12

eissn

0955-3002

issn

1362-3095

pii

906450703

journal_volume

84

pub_type

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