Quantitative and semi–quantitative analyses using a portable energy dispersive X–ray fluorescence spectrometer: Geochemical applications in fault rocks, lake sediments, and event deposits

AbstractThe rapid progress of x-ray fluorescence analysis spectrometers has been closely associated with advances in computers. Due to the power of computers, it is possible to acquire the data automatically and interpret complex information accurately and quickly, so as to provide both qualitative and quantitative analyses. It is now about thirty years that computers have been applied to X-Ray Fluorescence Analysis (XRFA). Few workers have discussed the style of the various approaches, although many different software packages have been used for XRFA. Requirement analysis has been performed for Energy Dispersive (ED) XRFA, and preliminary designs are given for three types of structures: i. Sequence structure, ii. Tree structure, and iii. Net structure.

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Research on the method of quickly comparing the quality of Aluminium Powder for fireworks and firecrackers based on energy dispersive X-ray fluorescence spectrometer (EDXRF)

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/358/4/042048 ◽

2019 ◽

Vol 358 ◽

pp. 042048

Author(s):

Wu Jun-yi

Keyword(s):

Energy Dispersive ◽

X Ray ◽

Aluminium Powder ◽

Fluorescence Spectrometer

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Energy-dispersive X-ray fluorescence spectrometer with capillary optics for the chemical analysis of atmospheric aerosols with high time resolution

Journal of Aerosol Science ◽

10.1016/s0021-8502(97)00011-6 ◽

1997 ◽

Vol 28 (8) ◽

pp. 1455-1463 ◽

Cited By ~ 7

Author(s):

B. Hoy̵ńska ◽

J. Ptasiński ◽

W. Maenhaut ◽

H.J. Annegarn

Keyword(s):

Chemical Analysis ◽

Time Resolution ◽

Atmospheric Aerosols ◽

Energy Dispersive ◽

High Time ◽

High Time Resolution ◽

X Ray ◽

Capillary Optics ◽

Fluorescence Spectrometer

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Energy Dispersive X-Ray Fluorescence Spectrometry Using Pulsed X-Ray Excitation

Advances in X-ray Analysis ◽

10.1154/s0376030800007850 ◽

1975 ◽

Vol 19 ◽

pp. 253-265 ◽

Cited By ~ 10

Author(s):

J. M. Jaklevic ◽

D. A. Landis ◽

F. S. Goulding

Keyword(s):

Feedback Loop ◽

Large Scale ◽

Operating Experience ◽

Energy Dispersive ◽

Electronic Control ◽

X Ray ◽

Feedback Mode ◽

Pile Up ◽

Conventional Systems ◽

Fluorescence Spectrometer

An energy dispersive X-ray fluorescence spectrometer using pulsed X-ray excitation has been developed for use in large-scale environmental analysis programs. A grid controlled X-ray tube is coupled with variable secondary fluorescence targets to analyze for a wide variety of elements with almost optimum sensitivity. The operation of the pulsed tube in a feedback loop with the semiconductor detector spectrometer results in a substantial increase in output counting rates without pile-up. The loop functions by turning off the excitation immediately upon detection of an event by the spectrometer. Pileup events are virtually eliminated and the X-ray tube's available anode power is better utilized.The electronic control of this feedback mode results in some unique features in the response of the system to varying sample mass. These features are discussed in detail. Experimental results for sensitivity and accuracy over the range of elements measured are presented. Early operating experience with the unit indicates increases of counting rates of a factor of five compared with similar conventional systems.

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