Capillary optics for micro x-ray fluorescence analysis

Bjeoumikhov, A.; Langhoff, N.; Bjeoumikhova, S.; Wedell, R.

doi:10.1063/1.1938847

Cited by 44 publications

(25 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Conversely, for a focusing optic it can be important that the halo of the unfocussed beam be removed completely by absorption in the glass walls of the optic [62]. Typically the optics are packaged in housings which contain absorptive materials, but unless care is taken in design, the focal spot may be surrounded by a "cut through" halo approximately equal to the diameter of the housing aperture [63][64][65].…”

Section: Absorption: Blockage and Halomentioning

confidence: 99%

Focusing Polycapillary Optics and Their Applications

MacDonald

2010

X-Ray Optics and Instrumentation

View full text Add to dashboard Cite

A summary of focusing X ray polycapillary optics is presented including history, theory, modeling, and applications development. The focusing effects of polycapillary optics come from the overlap of the beams from thousands of small hollow glass tubes. Modeling efforts accurately describe optics performance to allow for system development in a wide variety of geometries. The focusing of X ray beams with polycapillary optics yields high gains in intensity and increased spatial resolution for a variety of clinical, lab-based, synchrotron or in situ analysis applications.

show abstract

Section: Absorption: Blockage and Halomentioning

confidence: 99%

Focusing Polycapillary Optics and Their Applications

MacDonald

2010

X-Ray Optics and Instrumentation

View full text Add to dashboard Cite

show abstract

“…The X-ray tomographic experiments were performed on our newly upgraded cone-beam X-ray tomography facility [5][6] (Fig. 1).…”

Section: Methodsmentioning

confidence: 99%

Advanced x-ray imaging of metal-coated/impregnated plasma-facing composite materials

et al. 2011

View full text Add to dashboard Cite

PACS: 81.70.Tx, 78.70.En. AbstractA combination of X-ray imaging techniques is employed for the characterization of coated/impregnated carbon based composite materials to be used as Plasma Facing Components (PFC) in fusion devices. X-ray micro-tomography (µXCT) is applied for the visualization of Carbon Fiber Composites (CFC) -Cu joined samples and also for the CFC material porosity network characterization. The quantitative determination of the tungsten coating thickness on carbon materials is performed using a combined absorption/fluorescence X-ray technique (µXRFT). The method was applied at the analysis of W coated fine grain graphite (FGG) and CFC tiles. The X-ray imaging techniques provide fast analysis and high spatial resolution.

show abstract

“…Therefore, the propagation process of photons is usually simulated in the framework of geometrical optics (see e.g. [4][5][6][7]). In [8][9][10] the focussing of synchrotron radiation by a polycapillary lens has been studied and a fine structure in the focal spot was observed.…”

Section: Introductionmentioning

confidence: 99%

“…Capillary and polycapillary systems are used for collimation, transportation and focussing of X-rays emitted by laboratory sources or synchrotron sources at storage rings [1][2][3][4][5]. Since the first publications about capillary optics up to now this new field has been considerably developed so that it became a generally accepted part of X-ray optics.…”

Section: Introductionmentioning

confidence: 99%