EMF Research Studies

Radar Marches On

Robert T. Hill · 1980

ELECTRICAL PROPERTIES OF CELLS: PRINCIPLES, SOME RECENT RESULTS AND SOME UNRESOLVED PROBLEMS

Herman P. Schwan · 1980

REVIEW OF RADIOFREQUENCY AND MICROWAVE RADIATION BIOEFFECTS: THRESHOLDS FOR EFFECTS IN ANIMALS AND BIOPHYSICAL MECHANISMS OF INTERACTION

Joseph K. Kielman et al. · 1980

The authors reviewed experimental results from investigators worldwide on radiofrequency and microwave radiation bioeffects. Absorption of electromagnetic energy between 300 kHz and 300 GHz depends on frequency, organism geometry, and tissue dielectric properties. At power densities above 10 mW/cm2, energy dissipation can cause thermogenesis. Below 10 mW/cm2, core temperature and metabolic rate remain unchanged but biological effects are observed, including alterations in blood-brain barrier, neurotransmitter release, EEG, heart rate, immunocompetence, hematopoiesis, neuroendocrine function, and behavior. Subjective human effects such as headaches, weakness, and auditory response have also been reported.

DECISION OF MULTNOMAH COUNTY HEARINGS OFFICER - Community Service (Microwave Transmitter Tower)

Unknown authors · 1980

A Study To Investigate Federal Regulation of Microwave Standards

Leonard David · 1980

The study outlines the historical background of U.S. microwave exposure guidelines and identifies the lead federal agencies. No federal standards exist to protect workers or the public, only a voluntary 10 mW/cm² guideline from 1966. Regulatory trends point toward more stringent occupational and public exposure limits, possibly as low as 1 mW/cm². The SPS system would deliver 23 mW/cm² at the rectenna center, 1 mW/cm² or less at the edge, and 0.1 mW/cm² at the buffer zone boundary. Current data show no morbid effects from 2,450-MHz radiation below 1 mW/cm², but long-term exposure studies are lacking.

ACCURATE OPTICAL TEMPERATURE MEASUREMENT USING LIQUID CRYSTAL SENSOR

R. Huguenin, J. Engdahl · 1980

USSR Report Biomedical & Behavioral Sciences (FOUO 1/80) Effects of Nonionizing Electromagnetic Radiation

Unknown authors · 1980

Ultra low frequency radiation (ULF) — "magnetic smog"???

not specified in article text · 1980

Significance of Blood Flow in Calculations of Temperature in Laser Irradiated Tissue

Ashley J. Welch, E. H. Wissler, Leslie A. Priebe · 1980

Epidemiologic Studies of Microwave Effects

Charlotte Silverman · 1980

The review describes two unpublished cohort studies: one of U.S. naval personnel occupationally exposed to radar, and another of American Embassy personnel in Moscow compared with employees at eight other Eastern European posts. Neither study found differential health risks associated with presumed microwave exposure, but both had significant limitations.

USSR Report - Biomedical and Behavioral Sciences - Effects of Nonionizing Electromagnetic Radiation

Foreign Broadcast Information Service (FBIS) · 1980

The publication contains articles, abstracts of articles, and news items from USSR scientific and technical journals. The content covers the specific subjects reflected in the table of contents.

MODEL 1000A FLUOROPTIC THERMOMETER: A STATEMENT ABOUT ACCURACY

Unknown authors · 1980

The technical note defines the basis of accuracy for the Model IOOOA and helps the customer optimize results. The look-up table in the Model IOOOA is accurate to 0.05°C or better throughout its range. A built-in calibration reference allows each probe to be optimized by inserting the sensor into the calibration well and making an adjustment. Current probes show a precision of 0.1°C. The instrument's resolution is the 0.1° digit on the display.

Functional Disturbance in the Gastrointestinal Tracts of People Working in a Superhigh Frequency Field

D. Tikhonov · 1980

RATIOING FLUOROPTIC TEMPERATURE SENSOR FOR INDUCED HYPERTHERMIA

Kenneth A. Wickersheim, Ronald V. Alves · 1980

Electrical thermometry techniques are not practical for electrically induced heating because metallic wires reflect microwave and RF radiation and distort the heating pattern. The fluoroptic sensor uses europium-activated gadolinium oxysulfide phosphor excited by ultraviolet radiation through a single optical fiber. The sensor achieves temperature precision of 0.19°C over the range from 0° to 100°C. Probe diameters of 0.2 to 0.5mm appear feasible, with diameters approaching 0.5mm using thinner coatings on 400 micron core fibers and diameters down to 0.2mm using smaller 100 to 200 micron core fibers. Present sensors have been cycled repeatedly from 0°C to 200°C without affecting calibration.

Conceptual Design of RST—An RF-Driven, Steady-State Tokamak

R. Prater et al. · 1980

The project objective was to find a means for steady-state tokamak reactor operation because current tokamaks operate cyclically, causing temperature cycling of the first wall, a need for thermal energy storage, and large power handling requirements. RST uses a novel superconducting toroidal field coil concept with only three return legs and superconducting pullback coils to reduce magnetic field ripple, greatly increasing plasma access. The design specifies a major radius of 80 cm, minor radius of 20 cm, and on-axis magnetic field of 1.5 T, intended to be built in about two years for under <5M$.

Dielectric Behavior of a Semi-Solid Food at Low, Intermediate and High Moisture Contents

R.E. Mudgett, S.A. Goldblith, D.I.G. Wang, W.B. Westphal · 1980

Standing wave measurements were made at 3 GHz, 25°C, for samples equilibrated to various moisture contents and water activities. Dielectric loss increased slowly from 11-86% ERH, rose rapidly to a maximum at about 97% ERH, then fell sharply at higher water activities. The results suggest a critical water activity near 86% ERH or 21% moisture for activation of dielectric loss mechanisms, related to mobile water availability. An electrophysical two-phase model essentially predicted the dielectric behavior across the moisture range.

Physicist Cooks Up Way to Save Energy Using Age-Old Idea: Microwave Generator Would Try Fireplace Principle: Heat People, Not Rooms

Jerry E. Bishop · 1980

CATARACTS FOLLOWING USE OF CATHODE RAY TUBE DISPLAYS

Milton M. ZARET, M.D. · 1980

Ocular Effects of Non-Ionizing Radiation

Myron L. Wolbarsht, David H. Sliney · 1980

HI-3001 Isotropic Broadband Survey Meter

Unknown authors · 1980

The instrument measures fields from 0.5 MHz to 1000 MHz and from 1 v/m to 3160 v/m in six ranges. Its isotropicity is specified as +1 dB over the full rotation of the probe head. The standard battery pack provides approximately 40 hours of continuous operation.

WAVETEK Model 907 7 to 11 GHz Signal Generator

Unknown authors · 1980

Program from 68th Annual Convention of the Canvass Products Association International

Unknown authors · 1980

Heating Patterns Produced by 434 MHz Erbotherm UHF 69

Bhudatt R. Paliwal et al. · 1980

Microwave Biological Effects: An Overview

Sol M. Michaelson · 1980

Some reports suggest low power density microwaves affect neural and immunologic function, but many studies have methodological inadequacies. The review finds no satisfactory evidence of genetic effects at low to modest power densities, and recent studies confirm exposures below 10 mW/cm² are not mutagenic. Developmental abnormalities are attributed to hyperthermia, and no serious effects are expected below 10 mW/cm² under usual conditions. Behavioral studies show performance suppression with a threshold power density of 5 to 50 mW/cm² depending on exposure parameters.

ONDES ELECTROMAGNÉTIQUES ET BIOLOGIE / ELECTROMAGNETIC WAVES AND BIOLOGY

Unknown authors · 1980

An instrument was described to observe non-thermal effects of non-ionizing electromagnetic waves on mammalian cells maintained in culture. Cells were exposed in vitro in their culture medium, attached to their usual culture support, allowing the use of somatic genetics techniques. The non-ionizing electromagnetic waves had a specific lethal effect, were non-mutagenic, and did not increase the mutagenic power of ethyl methane sulfonate for establishing cell lines.