To study the effect of microwave radiation on the incorporation of [³H]thymidine and on the incidence and the frequency of structural chromosome aberrations.
| Exposure | Parameters |
|---|---|
|
Exposure 1:
7.7 GHz
Exposure duration:
15, 30 or 60 min
|
|
| Frequency | 7.7 GHz |
|---|---|
| Type | |
| Waveform | |
| Exposure duration | 15, 30 or 60 min |
| Exposure source | |
|---|---|
| Setup | samples placed below the horn antenna on a thin bakelite plate (1.2 m high). |
| Additional info | slit of the horn antenna was 80 cm. |
| Measurand | Value | Type | Method | Mass | Remarks |
|---|---|---|---|---|---|
| power density | 300 W/m² | unspecified | measured | - | - |
| power | 2 W | - | cf. remarks | - | max output of the generator |
The results suggest that microwave radiation causes changes in the synthesis as well as in the structure of DNA molecules. The inhibition of [³H]thymidine incorporation took place by complete prevention of DNA from entering into the S phase. The normal rate of [³H]thymidine was recovered within 1 generation cycle. Mutagenic tests showed that even DNA macromolecules were involved in the process. In comparison with the control samples there was a higher frequency of specific chromosome lesions in cells that had been exposed.
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