نتایج جستجو برای: fission track registration technique

تعداد نتایج: 744502  

2008
M. Lang J. Lian F. Zhang C. Trautmann

The fission-track dating technique is an important tool to constrain the history of samples from small archaeological specimens to large geological formations. The method is based on analyzing particle tracks produced by spontaneous fission of 238 U nuclei and accumulated over time. In laboratory experiments, fission tracks can be simulated by performing irradiations with energetic heavy ions p...

Journal: :The Quaternary Research (Daiyonki-Kenkyu) 1967

2011
B. Afra M. Lang M. D. Rodriguez N. Kirby R. C. Ewing C. Trautmann P. Kluth

Fission tracks in minerals, such as apatite and zircon, generated by energetic nuclear fragments that result from spontaneous fission of U, are used for determining the age and thermal history of Earth’s crust. Taken together with other techniques, the data infer rates of tectonic uplift and landscape evolution [1]. At elevated temperatures, these tracks shrink in size and fragment into section...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه قم - دانشکده علوم پایه 1386

چکیده ندارد.

Journal: :Journal of Earth System Science 1981

Journal: :Radiation protection dosimetry 2010
L P Geraldo R A M Serafim B A M Corrêa I M Yamazaki M C Primi

In this work, the uranium (U) content in sediment and soil samples collected near the Santos and São Vicente estuaries was determined using the fission track registration technique (SSNTD). The sediment and soil samples after oven-dried and pulverised were prepared in the solution form. About 10 microl of this solution was deposited on a plastic detector and irradiated at the IPEN-IEA-R1 (3.5 M...

2013
Jian Yang Qiang Song Changwen Qu You He

The presence of systematic measuring errors complicates track-to-track association, spatially separates the tracks that correspond to the same true target, and seriously decline the performances of traditional track-to-track association algorithms. Consequently, the influence of radar systematic errors on tracks from different radars, which is described as some rotation and translation, has bee...

Journal: :Reviews in Mineralogy and Geochemistry 2005

Journal: :Journal of the Japanese Association for Petroleum Technology 2005

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