Browse 8,655 peer-reviewed studies on electromagnetic field health effects from 4 research libraries.
Showing 1,361 studies from Glaser RF/Microwave Archive with extracted diagrams
Sol M. Michaelson · 1980
This 1980 overview examined reports that low-power microwave radiation could affect brain and immune system function, even at levels too weak to cause heating. Most evidence came from Soviet and Eastern European studies suggesting behavioral and nervous system changes. The review called for more research to understand how electromagnetic fields might interact with the brain's control systems.
R. B. Olcerst et al. · 1980
Researchers exposed rabbit red blood cells to 2.45 GHz microwave radiation (the same frequency used in microwave ovens) and measured how sodium and potassium leaked out of the cells. They found that at specific temperatures, microwave exposure caused significantly more mineral leakage than heat alone could explain, suggesting the microwaves had biological effects beyond just warming the cells.
Duc Dung Nguyen, Maurice Chivé, Yves Leroy, Eugène Constant · 1980
This 1980 technical study developed new methods for combining microwave heating with radiometry (temperature measurement) to monitor thermal effects in real-time. Researchers created systems that could measure temperature changes in the exact location where microwave power was being applied, with potential medical and industrial applications.
Paul S. Ruggera · 1980
This 1980 government report documented emission levels from medical diathermy equipment, which uses microwave and shortwave frequencies to heat body tissue for therapeutic purposes. The research measured how much electromagnetic radiation these medical devices emit during actual treatments. This data helps establish safety protocols for both patients and healthcare workers operating this equipment.
W. Dewey et al. · 1980
This 1980 international symposium brought together leading researchers to examine how heat therapy (hyperthermia) combined with radiation and drugs could treat cancer. The conference explored various heating methods including microwaves, radiofrequency, and ultrasound to raise tumor temperatures. This research laid important groundwork for understanding how electromagnetic energy interacts with human tissue at therapeutic levels.
Melvin A. Astrahan, F. W. George III · 1980
This 1980 study describes the technical development of an experimental radiofrequency hyperthermia system for cancer treatment. Researchers designed temperature control circuitry to regulate heat delivery to tumors using localized current field technology. The work focused on engineering safety and performance considerations for medical RF applications.
Howard Bassen · 1980
This 1980 FDA research by H. Bassen examined radio-frequency and microwave radiation exposure measurement and safety standards. The study focused on how these electromagnetic fields are absorbed by human tissue and established methods for assessing exposure levels. This represents early foundational work in understanding RF/microwave radiation effects on human health.
Duc Dang NGUYEN, Maurice CHIVE, Yves LEROY · 1980
French researchers in 1980 developed a system using 2.5 GHz microwave radiation to heat animal tissues locally while monitoring temperature through microwave radiometry. This early study explored controlled hyperthermia treatment using the same frequency range later adopted for WiFi and Bluetooth communications. The research demonstrated that microwaves could precisely heat biological tissues without invasive temperature probes.
Duc Dung NGUYEN et al. · 1980
This 1980 technical study examined how to design and use microwave probes for medical thermography - a technique that uses microwave radiation to measure internal body temperature for diagnosis and treatment. The researchers developed mathematical models to improve probe design and interpret thermal patterns from microwave measurements.
Michèle ROBILLARD et al. · 1980
This 1980 French technical study examined how rectangular waveguide probes filled with dielectric materials penetrate living tissue for medical microwave applications like thermography and hyperthermia treatment. Researchers found that probe performance depends on both the electrical properties of human tissue and the specific design characteristics of the probes themselves. The work established criteria for optimizing probe design in biomedical microwave systems.
M. Gautherie et al. · 1980
Researchers used 9 GHz microwave radiometry to study breast cancer patients and other tumor patients, comparing this technique to infrared thermography. The study found that microwave radiometry could detect thermal conditions in deeper tumor tissues where infrared thermography failed, providing valuable information about tumor metabolism and blood flow patterns.
H.F. Huang, R.A. Yates · 1980
This 1980 study describes using radio-frequency energy combined with hot air to dry fungal material, creating a textured food product. The research focused on food processing applications, not health effects. The dried fungal material could be rehydrated to more than twice its original dry weight.
BLAKE S. WILSON et al. · 1980
Researchers exposed rats to microwave radiation and used radioactive glucose to map brain activity patterns. They discovered that continuous-wave microwaves triggered auditory responses in the brain at power levels as low as 2.5 mW/cm², even though these microwaves don't create audible sounds. The study proved these responses originated in the inner ear (cochlea), not from direct brain stimulation.
M.A. Stuchly, M.H. Repacholi, D. Lecuyer, R. Mann · 1980
Canadian researchers surveyed 82 industrial RF heating devices used for plastic sealing and wood gluing in 1979, operating at 4-51 MHz with power outputs up to 90 kW. Many devices exposed workers to RF fields exceeding 1 mW/cm², with some over 10 mW/cm² - levels far above what's considered safe today. This study documented significant occupational RF exposure in industrial settings decades before modern wireless technology.
Howard Bassen · 1980
This 1980 FDA document outlines the agency's measurement and risk assessment activities designed to control radiofrequency and microwave radiation exposures. The paper describes the regulatory framework the FDA developed to monitor and limit RF/microwave radiation from various sources. This represents an early government acknowledgment of the need to actively manage EMF exposures for public health protection.
S. Washisu, I. Fukai · 1980
Researchers developed a simple method using toner particles to visualize electric field patterns inside microwave ovens during operation. The toner forms visible patterns on heated plates that directly correspond to the electromagnetic field distribution, providing better resolution than previous methods using thermopaint. This technique allows engineers to see exactly where microwave energy concentrates inside the oven cavity.
Howard I. Bassen · 1980
This 1980 FDA evaluation examined microwave radiation emissions from Sensormatic electronic security systems, the anti-theft devices commonly found at store entrances. The study assessed whether these systems posed radiation hazards to the public. This represents early government recognition that everyday electronic security devices could be sources of microwave exposure requiring evaluation.
R. B. Olcerst et al. · 1980
Researchers exposed rabbit red blood cells to 2.45 GHz microwave radiation (the same frequency used in microwave ovens) and found that it increased the leakage of sodium and rubidium ions from the cells at specific temperatures. The effect occurred at much lower power levels than would be needed to heat the cells, suggesting a non-thermal mechanism.
André CASTELAIN et al. · 1980
French researchers developed and tested miniature coaxial probes designed to measure the electrical properties of biological tissues when exposed to radiofrequency radiation. The study focused on creating accurate measurement tools for understanding how RF energy interacts with living tissue, particularly for medical applications like hyperthermia treatment.
D.D. Nguyen et al. · 1980
This 1980 study examined how microwave probes (2-10 GHz frequency range) interact with human tissue for medical thermal imaging applications. Researchers developed mathematical models to understand how microwaves penetrate tissue and detect temperature patterns, particularly for tumor detection. The work laid groundwork for understanding microwave-tissue interactions in medical diagnostics.
Unknown authors · 1979
This 1979 IEEE symposium brought together radio science and bioelectromagnetics researchers to examine electromagnetic wave phenomena and their biological effects. The conference covered electromagnetic field measurement techniques, wave propagation in ionized media, and interference environments. This represents early formal scientific collaboration between engineers and biologists studying electromagnetic health effects.
Guy, Arthur W., Wallace, Jack, McDougall, John A. · 1979
This 1979 study by Guy and colleagues developed a specialized waveguide system for exposing mice to 918 MHz and 2450 MHz microwave radiation in controlled laboratory conditions. The researchers designed equipment that could precisely deliver circularly polarized electromagnetic fields to groups of four mice at a time, with different positioning strategies for optimal exposure at each frequency. This work established technical methods for studying how microwave radiation affects biological systems like blood-brain barrier function and whole-body heating effects.
John R. Thomas, Linda S. Burch · 1979
Researchers exposed rats to low-level pulsed microwave radiation (1 milliwatt per square centimeter) while giving them the anti-anxiety drug chlordiazepoxide. The microwave exposure amplified the drug's behavioral effects, even though the radiation alone didn't change behavior. This shows microwave fields can alter how the brain responds to medications.
Susanta Sen, P. K. Saha, B. R. Nag · 1979
Researchers developed a new method for measuring how materials interact with microwave radiation using a modified cylindrical cavity. The technique simplifies measurements by eliminating the need for sample size calculations and system calibration. While limited to materials with low dielectric properties, it offers improved accuracy for microwave testing applications.
David E. Janes, Jr. · 1979
The EPA conducted the first comprehensive survey of radiofrequency radiation levels across 15 major U.S. cities from 1975-1979, measuring emissions from 0.5-900 MHz in everyday environments. The study documented baseline RF exposure levels from broadcast antennas, radars, medical equipment, and industrial sources to establish whether environmental guidelines were needed. This landmark research provided the foundation for understanding how much RF radiation Americans were encountering in their daily lives.