Preparation of standard materials of aerosol particles for X-ray fluorescence analysis using a small chamber sampling unit

2018 ◽  
Vol 47 (6) ◽  
pp. 450-458 ◽  
Author(s):  
Kazuhiko Nakano ◽  
Yoshito Oshiro ◽  
Sotaro Azechi ◽  
Yuka Somada ◽  
Daishi Handa ◽  
...  
Keyword(s):  
Aerosol Particles ◽  
Fluorescence Analysis ◽  
Sampling Unit ◽  
X Ray ◽  
Small Chamber

Total reflection X-ray fluorescence analysis of aerosol particles with direct dissolution of the collection filter on a substrate

2021 ◽  
Author(s):  
Tsugufumi Matsuyama ◽  
Hiroki Yamaguchi ◽  
Kouichi Tsuji
Keyword(s):  
Trace Elements ◽  
Aerosol Particles ◽  
Fluorescence Analysis ◽  
Total Reflection ◽  
X Ray ◽  
Novel Method ◽  
Direct Dissolution

In this study, a novel method based on total reflection X-ray analysis was developed for determining the trace elements in aerosol particles.

Design of a doubly-curved crystal to improve X-ray fluorescence analysis of aerosol particles

2008 ◽  
Vol 63 (12) ◽  
pp. 1408-1414 ◽  
Author(s):  
Markus Krämer ◽  
Kaori Kuzushita ◽  
Shuji Maeo ◽  
Tadashi Utaka ◽  
Kazuo Taniguchi
Keyword(s):  
Aerosol Particles ◽  
Fluorescence Analysis ◽  
X Ray ◽  
Doubly Curved

An x-ray microprobe based upon a close-coupled focal-spot / glass capillary arrangement

1992 ◽  
Vol 50 (2) ◽  
pp. 1758-1759
Author(s):  
D. A. Carpenter ◽  
M. A. Taylor
Keyword(s):  
Imaging Techniques ◽  
Fluorescence Analysis ◽  
High Sensitivity ◽  
Specimen Preparation ◽  
X Rays ◽  
Glass Capillary ◽  
Close Coupling ◽  
X Ray ◽  
Point To Point ◽  
Beam Damage

The development of intense sources of x rays has led to renewed interest in the use of microbeams of x rays in x-ray fluorescence analysis. Sparks pointed out that the use of x rays as a probe offered the advantages of high sensitivity, low detection limits, low beam damage, and large penetration depths with minimal specimen preparation or perturbation. In addition, the option of air operation provided special advantages for examination of hydrated systems or for nondestructive microanalysis of large specimens.The disadvantages of synchrotron sources prompted the development of laboratory-based instrumentation with various schemes to maximize the beam flux while maintaining small point-to-point resolution. Nichols and Ryon developed a microprobe using a rotating anode source and a modified microdiffractometer. Cross and Wherry showed that by close-coupling the x-ray source, specimen, and detector, good intensities could be obtained for beam sizes between 30 and 100μm. More importantly, both groups combined specimen scanning with modern imaging techniques for rapid element mapping.

XRMF applications of a monolithic, polycapillary, focusing x-ray optic

1996 ◽  
Vol 54 ◽  
pp. 240-241
Author(s):  
D. A. Carpenter ◽  
Ning Gao ◽  
G. J. Havrilla
Keyword(s):  
Trace Elements ◽  
Point Source ◽  
Focal Spot ◽  
Fluorescence Analysis ◽  
X Rays ◽  
Focal Distance ◽  
Spot Diameter ◽  
X Ray ◽  
Focal Spot Diameter

A monolithic, polycapillary, x-ray optic was adapted to a laboratory-based x-ray microprobe to evaluate the potential of the optic for x-ray micro fluorescence analysis. The polycapillary was capable of collecting x-rays over a 6 degree angle from a point source and focusing them to a spot approximately 40 µm diameter. The high intensities expected from this capillary should be useful for determining and mapping minor to trace elements in materials. Fig. 1 shows a sketch of the capillary with important dimensions.The microprobe had previously been used with straight and with tapered monocapillaries. Alignment of the monocapillaries with the focal spot was accomplished by electromagnetically scanning the focal spot over the beveled anode. With the polycapillary it was also necessary to manually adjust the distance between the focal spot and the polycapillary.The focal distance and focal spot diameter of the polycapillary were determined from a series of edge scans.

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