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RF Cell Culture Irradiation System with Controlled Temperature and Field Strength.

PB274793

Publication Date	1977
Personal Author	Guy, A. W.
Page Count	58
Abstract	A unique RF cell culture irradiation system with controlled temperature and field strength is described, which was used in determining human RF exposure thresholds in the frequency range D.C. to 100 MHz. The system can produce electric field strengths up to 100 V/cm from D.C. to 1000 MHz in a 5-ml sample of culture medium. The culture medium temperature can be controlled and measured up to 100 MHz by monitoring the feedline impedance, which is dependent on culture medium temperature. Constant temperatures below 37C can be maintained at field strengths in excess of 25 V/cm. The information that can be obtained with the use of this system is needed to fill information gaps for standards criteria development.
Keywords	Electromagnetic radiation Health physics Radiation dosage Radio frequencies Temperature control Exposure Tables(Data) Radiobiology Dosimetry Mathematical models Experimental design Radiofrequency power Very high frequencies Thresholds(Perception) Humans In vitro analysis Cell cultures Threshold limit values Maximum permissible exposure level Nonionizing radiation
Source Agency	National Institute for Occupational Safety and Health
NTIS Subject Category	57V - Radiobiology
Corporate Authors	Washington Univ., Seattle. Bioelectromagnetics Research Lab.; School Of Aerospace Medicine, Brooks Afb, Tex.; National Inst. for Occupational Safety and Health, Cincinnati, Ohio. Div.
Document Type	Technical Report
NTIS Issue Number	197805

RF Cell Culture Irradiation System with Controlled Temperature and Field Strength.

RF Cell Culture Irradiation System with Controlled Temperature and Field Strength.
PB274793

Publication Date	1977
Personal Author	Guy, A. W.
Page Count	58
Abstract	A unique RF cell culture irradiation system with controlled temperature and field strength is described, which was used in determining human RF exposure thresholds in the frequency range D.C. to 100 MHz. The system can produce electric field strengths up to 100 V/cm from D.C. to 1000 MHz in a 5-ml sample of culture medium. The culture medium temperature can be controlled and measured up to 100 MHz by monitoring the feedline impedance, which is dependent on culture medium temperature. Constant temperatures below 37C can be maintained at field strengths in excess of 25 V/cm. The information that can be obtained with the use of this system is needed to fill information gaps for standards criteria development.
Keywords	Electromagnetic radiation Health physics Radiation dosage Radio frequencies Temperature control Exposure Tables(Data) Radiobiology Dosimetry Mathematical models Experimental design Radiofrequency power Very high frequencies Thresholds(Perception) Humans In vitro analysis Cell cultures Threshold limit values Maximum permissible exposure level Nonionizing radiation
Source Agency	National Institute for Occupational Safety and Health
NTIS Subject Category	57V - Radiobiology
Corporate Authors	Washington Univ., Seattle. Bioelectromagnetics Research Lab.; School Of Aerospace Medicine, Brooks Afb, Tex.; National Inst. for Occupational Safety and Health, Cincinnati, Ohio. Div.
Document Type	Technical Report
NTIS Issue Number	197805