| 1 | One complete circular track appears in the lower part of the photograph. | |
| 2 | The algorithm of image segmentation and parameters calculation for overlapping nuclear track image is studied. | |
| 3 | The imaging plat (IP) responsivity to irradiation tracks was theoretically studied in the present work. | |
| 4 | The apatite fission track (AFT) chronology in both sides of Jiali fault belt shows that the AFT age in the north side of the fault belt is 5. | |
| 5 | Based on independence measurement and principle of square sum for the Uncertainties, a method named"track by track comparison method"is established. |