Radiofrequency Radiation Dosimetry Handbook

Radiofrequency Radiation Dosimetry Handbook - Fourth Edition

Parameters for a Standard Physiological Man		Symbol and Numerical Value

Mass		w = 70 kg
Height		h = 1.75 m
Surface area		A_D = 1.85 m²
Convection, radiation area		A_r = A_c = 1.3 m²
Wetted area		A_w = 1.7 m²
Rate of metabolic heat production		M
Sitting at rest		M = 110 W or 1.57 W/kg
With thermal stress, T_re = 37C		M = 120 W or 1.71 W/kg
At T_re = 39.2° C		M = 153 W or 2.18 W/kg
Average M over 1-h period		M = 137 W or 1.96 W/kg
Critical rectal temperture		T_re = 39.2 C
Normal rectal temperature		T_re = 37°C
Specific heat of body		c_p = 0.83 (kcal/ °C kg)


Psychrometric Conditions		Symbol and Numerical Value

Wind velocity		v = 1.35 m/s
Evaporation coefficient		h_e = 21 W(m² · torr)
Convective coefficient		h_c = 9.5 W/ (m²· °C)
Radiation coefficient		h_r = 8 W/(m²· °C)
Ambient temperature range		T_a = 30 to 68° C
Relative humidity		a = 0.8, 0.5, 0.2
Saturated ambient water-vapor pressure		P_wa = is given in referenced tables in units of torr as a function of T_a
Ambient water-vapor pressure		P_a = a · P_wa
Saturated skin-vapor pressure		P_sk is given in referenced tables in units of torr as a function T_sk