Journal of Microwave Power and Electromagnetic Energy (JMPEE)

 

TITLE

Coaxial Nonmetallic Thermocouple with Electronic Ice Point for Dosimetric Use in Electromagnetic Environments [PDF]

AUTHORS

R. G. Olsen, W. C. Hammer and J. C. Taylor

1982

17

2

137-144

YEAR

VOLUME

ISSUE

PAGES

 

Abstract

A refined version of the nonmetallic thermocouple (NM'T) is presented along with results of microwave dosimetric testing of the device in a practical laboratory environment. A smaller device was achieved by using coaxial conductors of a dissimilar nature, and a slightly modified, commercially available electronic ice point provided temperature compensation of the secondary junctions adequate for normal laboratory use. Results of practical dosimetric comparisons in tissue-equivalent material between the coaxial NMT and a widely used, more sophisticated temperature probe showed mean specific absorption rate (SAR) to vary between 13.6% and 31 %, but no statistically significant difference was observed in instances where the probes were compared at identical locations during irradiation.