Outdoor measurement of SAR in a full-sized human model exposed to 29.9 MHz in the near field
✍ Scribed by Dr. Richard G. Olsen; Toby A. Griner
- Publisher
- John Wiley and Sons
- Year
- 1989
- Tongue
- English
- Weight
- 597 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0197-8462
No coin nor oath required. For personal study only.
✦ Synopsis
Localized and averaged specific absorption rates (SARs) were obtained in a full-size muscle-equivalent human model exposed to near-field 29.9 MHz irradiation at an outdoor facility. The model was positioned erect on a metallic groundplane I .22 m (4 ft) from the base of a 10.8-m (35 ft) whip antenna with an input power of 1.0 kW. For whole-body SAR, a mean value of 0.83 W/kg was determined using two grddient-layer calorimeters in a twin-well configuration. The localized SARs at 12 body locations were measured using nonperturbing temperature probes and were highest in the ankle region. We conclude that averaged SAR measurements in a full-size phantom are feasible using a twin-calorimeter approach; measurements in the field are practical when human-size (183 X 61 X 46 cm) calorimeters are used.