Table 1 Results of experiments of irradiation with 10 3He2+ particles of 10 individual cell nuclei each distributed on the periphery of a 7-day-old human ureter explant outgrowth
Control | Irradiated | ||||||
---|---|---|---|---|---|---|---|
Sample | Mean number of damaged cells | Mean calculated number of cells within explant outgrowth ( mC) | Mean fraction of damaged cells ± s.d. ( fC) | Mean number of damaged cells | Mean calculated number of cells within explant outgrowth ( mI) | Mean fraction of damaged cells ± s.d. ( fI) | Mean calculated number of additionally damaged cells a |
1 | 2433 | 7.8 × 105 | 0.0031±0.0004 | 7074 | 6.4 × 105 | 0.0111±0.0051 | 5689 |
2 | 3279 | 7.0 × 105 | 0.0047b | 6267 | 6.1 × 105 | 0.0102±0.0032 | 3608 |
3 | 3075 | 5.0 × 105 | 0.0062±0.0004 | 5217 | 4.9 × 105 | 0.0106±0.0022 | 2174 |
4 | 2604 | 6.1 × 105 | 0.0043±0.0012 | 4215 | 5.9 × 105 | 0.0071±0.0015 | 1679 |
aMean number of additionally damaged cells is equal to (fI−fC) × (mC+mI)/2. | |||||||
bSingle explant only. |