| Chemical separation and alpha activity measurements | |||
| Row number | Description | Experimental times from Ref. 1 | Times used in the calculations |
| 1 | Time from end of irradiation to start of chemical separation | A few days | 4 d |
| 2 | Chemical separation period | NA | 2 d |
| 3 | Alpha counting of Eka-Hg source from W2 | 406 h (16.92 d) | 16.92 d |
| 4 | 236 h (9.83 d) | 9.83 d | |
| 5 | Time interval between two alpha counting (3 and 4 above) | 24 d | 24 d |
| 6 | Alpha counting of Eka-Hg source from W1 sample | 280 h (11.7 d) | 11.7 d |
| 7 | Time gap between alpha counting of the W2 and W1 sources | NA | 0.5 d |
| 8 | Background alpha counting | 10 d | 10 d |
| 9 | Total time from end of irradiation to end of alpha counting | NA | 79 d |
| Fission event detection | |||
| 10 | Time gap between end of alpha counting and start of fission track recording | NA | 0 d |
| 11 | First Makrofol foil exposure | 7 d | 7 d |
| 12 | Second Makrofol foil exposure | 14 d | 14 d |
| 13 | Time gap between two exposures | 4 d | 4 d |
| 14 | Time spent for thickness reduction of Eka-Hg source from W2 | NA | 1 d |
| 15 | First Makrofol foil exposure (reduced sample thickness) | 8 d | 8 d |
| 16 | Second Makrofol foil exposure (reduced sample thickness) | 8 d | 8 d |
| 17 | Time gap between two Makrofol exposures | 13 d | 13 d |