Characteristics of a passive RF field probe with fibre-optic link for measurements in liquid hyperthermia phantoms.
An experimental study is described, leading to the design of a near-field electromagnetic radiation probe. A passive field probe with fibre-optic link has been constructed for use in hyperthermia phantoms, i.e. for measurements in lossy media--saline was used in this study as a simulation of biological tissue. The realization of a closed electric circuit on the probe proved to be a major influence on the sensitivity and dynamic range of the probe. The experiments also independently confirmed the dipole length, frequency variations between 5 and 110 MHz and the temperature of the probe as important parameters.
Schneider
C J
CJ
Department of Radiotherapy, Academisch Medisch Centrum, Amsterdam, The Netherlands.
Engelberts
N
N
van Dijk
J D
JD
D004867:Equipment Design; D005336:Fiber Optic Technology; D006801:Humans; D006979:Hyperthermia, Induced / Q000295:instrumentation*; D008961:Models, Structural; D012965:Sodium Chloride; D012996:Solutions
D012996:Solutions; D012965:Sodium Chloride