ELECTROMAGNETIC FIELD MEASUREMENTS FOR NON-IONIZING RADIATION HAZARDS
R. I. GRAY, C. E. GALLAHER · 1971
Research on electromagnetic radiation from utility smart meters using RF communication.
Smart meters are digital utility devices that automatically transmit your energy usage data to power companies using radiofrequency (RF) electromagnetic fields in the 900 MHz to 2.4 GHz range. Unlike the old analog meters that required manual readings, these devices communicate wirelessly multiple times per day, creating a new source of EMF exposure directly on your home.
R. I. GRAY, C. E. GALLAHER · 1971
McLees BD, Finch ED · 1971
Stephen W. Smith, David G. Brown · 1971
This 1971 government study measured radiofrequency and microwave radiation levels from man-made sources throughout the Washington DC area. The research documented the electromagnetic environment in the nation's capital, providing baseline measurements of RF and microwave exposure from various transmission sources. This early work helped establish understanding of urban electromagnetic pollution levels during the dawn of the wireless age.
Harry Levine, Robert L. Moore · 1970
Unknown authors · 1970
Steven Galagan · 1970
Chamber length is determined by the antenna size and the highest test frequency. Chamber width must keep the angle of incidence at or below 60 degrees to maintain absorber performance. Tapered chambers can achieve better performance at lower frequencies and lower cost than rectangular chambers.
Laurent P. LaRoche, Milton M. Zaret, Albert F. Braun · 1970
Barbara J. DeLateur et al. · 1970
Unknown authors · 1970
René JOLY · 1970
Unknown authors · 1970
Harry Levine, Robert L. Moore · 1970
This 1970 government technical report examined how microwave energy distributes inside microwave ovens and evaluated methods for testing oven safety. The research developed analytical techniques to measure internal energy patterns and assess test load performance. This foundational work helped establish safety standards for microwave oven design and operation.
Karel Marha · 1970
Harry Levine, Robert L. Moore · 1970
This 1970 government study examined how microwave energy distributes inside microwave ovens and evaluated standard test methods for measuring this radiation. The research focused on understanding internal energy patterns and developing proper testing protocols for microwave oven safety evaluation.
Wideband · 1970
William A. Herman · 1970
The document explains that microwave radiation interacts with biological systems mainly by heating tissue. The accepted biological damage from excessive exposure is hyperthermia, with certain organs like the eyes and testicles being most sensitive. Cataract formation in the eye occurs at power densities of hundreds of mW/cm², while testicular damage can occur at about 10 mW/cm² but is slight and recoverable.
DeLateur BJ, Lehmann JF, Stonebridge JB, Warren CG, Guy AW · 1970
This 1970 study examined how 915 MHz microwave radiation heats muscle tissue in human subjects using direct contact applicators. Researchers measured temperature changes in muscle tissue to understand how microwave energy penetrates and affects the human body. This early research helped establish fundamental data about how microwave frequencies interact with human tissue.
E. A. Chukhlovin · 1970
Edward Gross · 1969
Ulrich H. Behling · 1969
Unknown authors · 1969
Marvin Rosenstein, Warren A. Brill, Charles K. Showalter · 1969
Field surveys of 494 microwave oven units found that 109 units, or 22 percent, emitted radiation greater than 10 mW/cm² under normal operating conditions. Laboratory measurements demonstrated that power densities exceeding 700 mW/cm² could be produced if door safety interlocks failed or were defeated and the door was wide open. No specific performance standard for microwave oven exposure had been promulgated at the time of the report. Known human bioeffects from microwave exposure at levels of several mW/cm² to several hundred mW/cm² included temporary sterility in males, eye cataracts, and blood changes. A single case report described a microwave oven repairman with a recurrent hemorrhagic eruption that was suggested as possibly caused by microwave energy from microwave ovens.
Unknown authors · 1969
This 1969 technical report examined how microwave radiation affected behavior, physiology, and tissue damage in laboratory animals. While specific findings aren't available, this early research helped establish the foundation for studying biological effects of microwave exposure. The study represents important early work documenting that microwave radiation can produce measurable biological changes in living organisms.
JOLY, R., PLURIEN, G., DROUET, J., ET AL · 1969
Robert L. Bell et al. · 1969