Value chain · CLM-1322
Low confidence
The evidence behind this statement is thin, indirect or second-hand. Read it as a lead to check, not as a settled finding.
In plain terms
Around 1970 an author at Atomics International (North American Rockwell) reviewed Soviet research and asked why Soviet limits were up to a thousand times stricter. He found the Soviets took non-heating effects seriously, reported long-term symptoms in workers, and turned that concern into lower limits through shorter lines of communication than the US did.
The claim as recorded
A paper from about 1970 states that Soviet microwave exposure limits were a hundred to a thousand times lower than US limits. It says US practice treated thermal effects as the only significant ones, while Soviet work treated non-thermal effects as the most significant. It reports Soviet findings that several months of exposure below 10 mW/cm2, with no thermal effects seen, produced central nervous system changes in animals after two months. It summarises a 1965 Soviet clinical paper on exposed workers in three stages: an initial stage within three to five years of exposure (fatigue, headache, slowed heart rate), reversible after a short break from exposure; a second stage needing treatment and transfer to other work; and a third in which some symptoms persisted a year after a change of job. The paper suggests those workers were exposed before the stricter Soviet limits were adopted. Its explanation of the gap is that Soviet concern about non-thermal effects passed by much shorter lines into lower limits, while the US view that only heating matters produced a limit acceptable on that basis.
Evidence behind this: T5, an unrefereed paper by an author at Atomics International (North American Rockwell); it permits "the paper states Y". The Soviet animal and clinical findings are second-hand summaries of Soviet sources, not checked.
Scope and limits
The paper gives no frequencies, power densities or durations for the worker cases, so they cannot be set against any beam level. The animal and clinical findings are the paper's summaries of Soviet sources (its refs 4 and 6), which were not read. Venue and date are not printed; c.1970 is inferred from the references. The "< 10 mw/cm2" reads as "lu" in the text layer and was confirmed on the render. A single, non-refereed view.
What it assumes
No assumptions are recorded against this claim.
Where it comes from
PDF p.1 / printed 168: limits in the USSR "are a hundred to a thousand times lower than those established in the U. S."; "In the USSR, non-thermal effects are considered the most significant". PDF p.3 / printed 170: "several months exposure to fields of low enough intensity (< 10 mw/cm2) that no thermal effects were observed"; "after two months, they observed severe functional changes in the central nervous system"; initial stage symptoms "usually appear within three to five years of exposure". PDF p.4 / printed 171: changes "can be eliminated by a brief interruption of the work"; second stage "temporary transfer to other work is mandatory"; third stage symptoms "remained even a year later"; exposures "probably ... prior to the adoption of the more stringent standards". PDF p.5 / printed 172: concern "expresses itself through much shorter communication lines into lowered exposure limits".
Basis: mW/cm2; years of occupational exposure
Related records
- Answers question
- QST-001 not published in this release
Cite this
energyaperture.com/c/clm-1322
CLM-1322, Energy Aperture, as of c.1970.