MRI Machine EMF Research

Environmental Health Criteria 16: Radiofrequency and Microwaves

Sol M. Michaelson · 1982

The review evaluates the World Health Organization's Environmental Health Criteria 16 document on radiofrequency and microwave fields from 100 kHz to 300 GHz. The reviewer finds the publication unbalanced because it accepts nonthermal interaction literature with cursory critique while neglecting refuting evidence. The review notes that the document's designations of high, medium, and low power densities are ambiguous and ignore the frequency dependence of bioeffects. It points out specific errors in Table 10 frequency designations and an incomplete discussion of chronic cataract studies that omitted rabbit and monkey data showing no ocular damage. The reviewer concludes the document does not meet the high scientific caliber and accuracy of usual WHO publications.

Procedures for Evaluating Nonperturbing Temperature Probes in Microwave Fields

Christian U. Hochuli · 1981

Researchers developed evaluation procedures for nonperturbing temperature probes in microwave fields, including a precision calibration system, a thermographic camera system to measure heating patterns in a simulated muscle sphere at 2450 MHz, and a TEM transmission cell for electromagnetic interference testing from 250 kHz to 100 MHz. The calibration accuracy was ±0.017°C at 25°C over one day and ±0.023% over six months. Testing of four probes found the RAMAL probe caused the least perturbation but was unstable over time, while NARDA and VITEK were more stable and the Cetas probe was nonoperational.

Procedures for Evaluating Nonperturbing Temperature Probes in Microwave Fields

Christian U. Hochuli · 1981

This 1981 government report established procedures for evaluating temperature measurement probes that wouldn't interfere with microwave field studies. The research addressed a critical technical challenge: how to accurately measure temperatures during microwave exposure without the probe itself altering the electromagnetic field being studied.

Procedures for Evaluating Nonperturbing Temperature Probes in Microwave Fields

Christian U. Hochuli · 1981

This 1981 government report developed standardized procedures for evaluating temperature measurement probes that don't interfere with microwave field experiments. The research addressed a critical technical challenge: how to accurately measure temperatures during microwave exposure studies without the probes themselves altering the electromagnetic fields being studied.

Radio-Frequency and Microwave Radiation

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.

Non-Ionizing Radiation: Dealing With a Complicated Situation

Angelo Vassallo · 1980

Measurements of Emission Levels During Microwave and Shortwave Diathermy Treatments

Paul S. Ruggera · 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.

HI-3001 Isotropic Broadband Survey Meter

Unknown authors · 1980

This 1980 technical report documented the HI-3001 isotropic broadband survey meter, a device designed to measure electromagnetic fields across multiple frequencies from all directions simultaneously. The meter represented early efforts to create comprehensive RF measurement tools for assessing environmental electromagnetic exposures. This type of instrumentation became foundational for modern EMF exposure assessment and safety monitoring.

HI-3001 Isotropic Broadband Survey Meter

Unknown authors · 1980

This 1980 technical report documents the HI-3001 isotropic broadband survey meter, an instrument designed to measure electromagnetic fields across multiple frequencies and directions simultaneously. The device represents early efforts to create comprehensive EMF measurement tools that could detect radiation from various sources in real-world environments. Such instrumentation became essential for understanding human exposure levels to electromagnetic fields.

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.

THE RATIONALE FOR THE 1979 RADIOFREQUENCY PROTECTION GUIDE (RFPG) "SAFETY LEVEL WITH RESPECT TO HUMAN EXPOSURE TO RADIOFREQUENCY ELECTROMAGNETIC FIELDS (300KHz - 100GHz)"

Unknown authors · 1980

PROPOSED TLV FOR RADIOFREQUENCY RADIATION

Unknown authors · 1979

ELECTROMAGNETIC FIELDS IN BIOLOGICAL MEDIA Part II-The SCAT Program, Multilayered Spheres, Theory and Applications

Stanley M. Neuder · 1979

Hazards of microwave radiation and radiation levels derived therefrom

Health Council of the Netherlands · 1979

Summary of Testimony Prepared for Public Hearings, Power Facilities Council, May 31, 1979

Unknown authors · 1979

Fifth Report on Program for Control of Electromagnetic Pollution of the Environment: The Assessment of Biological Hazards of Nonionizing Electromagnetic Radiation

NTIA · 1979

THE JOURNAL OF MICROWAVE POWER - AN INTERNATIONAL JOURNAL OF INDUSTRIAL SCIENTIFIC MEDICAL AND DOMESTIC APPLICATIONS FOR MICROWAVE POWER

Dr. S. S. Stuchly · 1979

NOTICE OF INQUIRY - Responsibility of the Federal Communications Commission to consider biological effects of radio frequency radiation when authorizing the use of radio frequency devices

Unknown authors · 1979

The Journal of Microwave Power

Dr. S. S. Stuchly · 1979

Radiofrequency (RF) Sealers and Heaters: Potential Health Hazards and Control

Unknown authors · 1979

RADIOFREQUENCY (RF) SEALERS, HEATERS, AND GLUERS: OPEN MEETING

Unknown authors · 1979

BEHAVIORAL AND PSYCHOLOGICAL EFFECTS OF MICROWAVE RADIATION

Don R. Justesen · 1979

Introduction, Brief Background, and Some Uses of Radiofrequency (RF) Sealers, Heaters, and Gluers

Zory R. Glaser · 1979

RF sealers, heaters, and gluers are also known as heat sealers, fusers, nolders, fasteners, embossers, high frequency sealers or dryers, electronic or electromagnetic sealers or welders, and dielectric heaters. Most devices operate between 3 and 100 MHz, with sealers commonly using ISM bands at 13, 27, and 40 MHz. An estimated 20,000 sealers are in use operated by approximately 30 to 40,000 workers.

Federal Register / Vol. 44, No. 161 / Friday, August 17, 1979 / Notices - Radiofrequency sealers, heaters, and gluers hazards; workshop

Unknown authors · 1979