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搜索结果: 1-8 共查到理学 PIXE相关记录8条 . 查询时间(0.046 秒)
Proton Induced X-ray Emission (PIXE) using high energy protons is a non destructive multi elemental technique that can analyze medium and heavy trace elements on thick samples. A new experimental setu...
Particle induced X-ray emission (PIXE) is a physical effect that is not yet adequately modelled in Geant4. The current status as in Geant4 9.2 release is reviewed and new developments are described. T...
本文用数值方法对厚靶PIXE分析中所测得的特征K-X射线强度进行修正.修正包括入射质子在靶中的慢化,特征X射线在厚样中的吸收以及基体元素的特征X射线引发的待测元素X射线的增强等.同时,为了进行元标样分析,同蒙特卡罗方法对整个分析系统作了效率刻度.在此基础上,对一些自制的标准厚样进行了PIXE实验分析,分析结果与已知值有较好的符合.
Aerosols play an important role in the atmosphere but are poorly characterized, particularly in urban areas like the Mexico City Metropolitan Area (MCMA). The chemical composition of urban particles m...
This paper describes the application of two techniques, ANAA and PIXE, used in the analyses of some available commercial food containing regular and genetically modified ingredients, as well as soyben...
Trace element concentrations in water from S˜ao Francisco River using Particle Induced X-ray Emission (PIXE) and Synchroton Total Reflection X-ray Fluorescence (STXRF) techniques are measured. Th...
PIXE-Particle Induced X-Ray Emission is a multielemental, sensitive and non-estructive method which has been in use in trace elemental analysis since 1970. This review aims to explain the main feature...
概述了PIXE分析技术在大气颗粒物特性、来源等研究中的几个应用实例.Some examples of applying PIXE on the atmospheric particulate are briefly introduced in this paper.

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