Fission-track annealing models aim to extrapolate laboratory kinetics the geological timescale for application studies. Model trends empirically capture mechanisms of track length reduction. To facilitate interpretation fission-track trends, a formalism, based on quantities already in use study physicochemical processes, is developed and allows calculation rate constants, Arrhenius activation e...

The external-detector method of fission-track (FT) dat­ ing is capable of providing FT ages for individual mineral grains. As a result, tliis method when applied to dating detrital zircons in unreset sandstone samples has much potential for resolving the depositional age and provenance of the samples. One problem is that individual FT grain ages for detrital zircons usually have fairly low prec...

The heavy ion interaction of 11.67 MeV/u 197Au+ 197Au has been investigated using mica as a passive detector. By employing Solid State Nuclear Track Detection Technique the data of elastic scattering as well as inelastic reaction channel was collected. The off-line data analysis of multi-pronged events was performed by measuring the three-dimensional geometrical coordinates of correlated tracks...

The effect of annealing on track density in unirradiated CR-39 and gamma irradiated CR-39 neutron detectors was investigated. One group of CR-39 detectors (25.4 x 12.7 x 0.635 mm) was irradiated with 1.3 kGy of 6oCo gamma rays. The other group of detectors was not irradiated with gamma radiation. The two sets of detectors were then annealed at temperatures ranging from room temperature (2OOC) t...

Understanding the formation of Qilian Shan in NE Tibetan Plateau provides insights into growth mechanisms northern portion plateau through time. The onset time exhumation is still debated. Qinghai Nan subrange, located southeastern Shan, cut by Yellow River that forms Longyang Gorge, providing a good vertical profile for thermochronological investigation exhumation. In this paper, we reconstruc...

The diffusion of defects (e.g., vacancies and interstitials) elements used for dating He Pb) in a mineral structure is thermal process: This the primary assumption to determine age history minerals. For instance, reconstruction, through number length distribution tracks produced by spontaneous fission 238U, obtained assuming event be only energy source shortening tracks. Here, we report new, no...

Sensor registration, which requires correctly associated data, is a significant problem in multi-sensor fusion. However, the result of track association is inevitably inaccurate in the presence of random errors, sensor biases, track loss and false tracks. In this paper, we address the problem of sensor registration under inaccurate track association. Regarding misassociations as outliers in the...

We present a novel local image registration method based on adaptive filtering techniques. The proposed method utilizes an adaptive filter to track smoothly, locally varying changes in the motion field between the images. Image pixels are traversed following a scanning order established by Hilbert curves to preserve the contiguity in the 2-D image plane. We have performed experiments using both...