A dual-PIXE tomography setup for reconstruction of Germanium in ICF target
| Autor: | Wenhong Zhang, You-Peng Zhang, Qi Wang, Jinshan Li, Dangzhong Gao, H. Shen, Xiaojun Ma, Na Guo, H.Y. Lu, Jie Meng, X.X. Liang |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Nuclear and High Energy Physics
Glow discharge Materials science Thermonuclear fusion business.industry Detector chemistry.chemical_element Germanium Fusion power 01 natural sciences 010305 fluids & plasmas Optics chemistry 0103 physical sciences Nuclear fusion Tomography 010306 general physics business Instrumentation Inertial confinement fusion |
| Zdroj: | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 404:162-166 |
| ISSN: | 0168-583X |
| DOI: | 10.1016/j.nimb.2017.04.041 |
| Popis: | Inertial Confinement Fusion (ICF) is one type of fusion energy research which could initiate nuclear fusion reactions through heating and compressing thermonuclear fuel. Compared to a pure plastic target, Germanium doping into the CH ablator layer by Glow Discharge Polymer (GDP) technique can increase the ablation velocity and the standoff distance between the ablation front and laser-deposition region. During target fabrication process, quantitative doping of Ge should be accurately controlled. Particle Induced X-ray Emission Tomography (PIXE-T) can make not only quantification of the concentration, but also reconstruction of the spatial distribution of doped element. The Si (Li) detector for PIXE tomography technique had a disadvantage of low counting rate. To make up this deficiency, another detector of Si (Li) with the same configuration positioned at the opposite side with the same detective angle 135° have been implemented. Simultaneously acquired elemental maps of Ge obtained using two detectors may be different because of the X-ray absorption along the X-ray exit route in the target. In this paper, the X-ray detection efficiency is drastically improved by this dual-PIXE tomography system. |
| Databáze: | OpenAIRE |
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