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Table 2 RF heating performance of 8-channel applicator designs at 300 MHz and 500 MHz

From: Thermal magnetic resonance: physics considerations and electromagnetic field simulations up to 23.5 Tesla (1GHz)

Frequency [MHz]

Dimensions [mm3]

Central SAR [W/kg]

iso-SAR 90 % [mm3]

iso-SAR 75 % [mm3]

iso-SAR 50 % [mm3]

iso-SAR 25 % [mm3]

300

150 × 70 × 40

216

18 × 18 × 41

29 × 29 × 70

45 × 45 × 111

65 × 65 × 157

500

150 × 70 × 40

176

10 × 10 × 40

17 × 17 × 73

27 × 27 × 138

35 × 35 × 182

500

70 × 40 × 20

116

10 × 10 × 28

17 × 17 × 48

26 × 26 × 83

25 × 25 × 155

  1. Maximum absolute central point SAR for a total input power of 400 W and hotspot size described by iso-SAR 90 %, iso-SAR 75 %, iso-SAR 50 % and iso-SAR 25 % along the x, y and z axis for transmit frequencies of 300 MHz and 500 MHz and for antenna building block with different dimensions
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Radiation Oncology

ISSN: 1748-717X

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