scholarly journals 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)

2019 ◽  
Vol 358 ◽  
pp. 042048
Author(s):  
Wu Jun-yi
Keyword(s):  
Energy Dispersive ◽  
X Ray ◽  
Aluminium Powder ◽  
Fluorescence Spectrometer

Estimation of the properties of an energy-dispersive X-ray fluorescence spectrometer based on a composite double-layer detector

2012 ◽  
Vol 67 (3) ◽  
pp. 235-242 ◽  
Author(s):  
A. Yu. Portnoi ◽  
G. V. Pavlinskii ◽  
M. S. Gorbunov ◽  
Yu. I. Sidorova
Keyword(s):  
Double Layer ◽  
Energy Dispersive ◽  
X Ray ◽  
Fluorescence Spectrometer

scholarly journals A Study of Preferred Orientation by Energy-Dispersive X-Ray Diffraction

1977 ◽  
Vol 2 (4) ◽  
pp. 243-251 ◽  
Author(s):  
E. Laine ◽  
J. Kivilä ◽  
I. Lähteenmäki
Keyword(s):  
Density Distribution ◽  
Diffraction Method ◽  
Polar Axis ◽  
Preferred Orientation ◽  
Energy Dispersive ◽  
X Ray Diffraction ◽  
Powder Specimen ◽  
X Ray ◽  
Aluminium Powder ◽  
Energy Dispersive Diffraction

The influence of preferred orientation on integrated x-ray intensities in powder specimen using energy-dispersive diffraction method is investigated. The theory used is based upon examination of the polar axis density distribution. The measurements were carried out using the Schulz technique added with defocusing correction. Experimental results are given for three aluminium powder specimens.

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

1975 ◽  
Vol 19 ◽  
pp. 253-265 ◽  
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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