USING MULTIPLE PARALLEL PLATE ALUMINUM IONIZATION CHAMBER FOR DETERMINING DOSE DISTRIBUTION AT AND NEAR THE INTERFACE OF DIFFERENT MATERIALS AND ITS MONTE CARLO SIMULATION

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Abstract
A multiple parallel plate aluminum ionization chamber has been designed for the study of dose distribution at and near the interface of different materials.The measurement of dose gradient distribution at and near the interface of Kovar/Au/Al,Pb/Al,Ta/Al has been done for 30—100 keV X rays from the synchrotron radiation source, and the dose enhancement factor(DEF) are also provided. DEF for interface of different materials is calculated by Monte-Carlo simulation of particle transportation, and the results are consistent with the measured dose-enhancement factor. A reliable evaluation approach of theoritival and experimental method is proposed for studying X-ray dose enhancement.

Keywords:
multiple parallel plate aluminum ionization chambers/

dose enhancement factor/

Monte-Carlo simulation
Authors and contacts
GUO HONG-XIA²,

CHEN YU-SHENG³,

ZHANG YI-MEN¹,

WU GUO-RONG³,

ZHOU HUI³,

GUAN YING³,

HAN FU-BIN³,

GONG JIAN-CHENG³
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Vol. 50, Issue 8 - 2001-04-20

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