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KMID : 0362919900080020155
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Journal of the Korean Society for Therapeutic Radiology and Oncology
1990 Volume.8 No. 2 p.155 ~ p.162
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Design and Thermal Distribution of Microwave Spiral Antenna
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Lee Kyung-Ja
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Abstract
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Spiral microwave antennas have been developed and measure the thermal distribution in agar phantom.
The design has been configured in three types, 3 cm f applicator with 24.5 cm length (A type), 4 cm f with 12.2 cm (B type) and 6 cm f with 24.5 cm length (C type).
The relative specific absorption rate (SAR) measured in phantom have been used to estimate the depth and profile of effective heating.
The applicator of copper antenna with 4 cm f diameter and 12.2 cm length (B type) has the most homogeneous (FWHM=3.5 cm) and heating into deep with (Deff=4cm).
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KEYWORD
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Hyperthermia, Spiral antenna, Microwave
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