A microcapillary lens for X-rays

Dudchik, Yu. I.; Kolchevsky, N. N.

doi:10.1016/s0168-9002(98)01269-8

Cited by 31 publications

(27 citation statements)

References 3 publications

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“…For a thick lens the formula should be corrected by the way proposed, for example, in 15 , where it is shown that for a thick lens distances a and b are measured from lens principal axis. The X-ray lenses for experiments on imaging were designed in the Institute of Applied Physics Problems (Belarus) by putting air bubbles inside a capillary prefilled by epoxy as is described in [7][8][9] . Fig.…”

Section: Imaging X-ray Tube Focal Spotmentioning

confidence: 99%

“…Compound refractive lenses (CRL) may be produced by different methods: by pressing individual lenses followed by alignment 4 , LIGA method 5 , and lithographic technique 6 . The lenses also may be designed by the way described in [7][8][9] , where a set of spherical concave microlenses with curvature radius R was formed inside glass capillary with the same radius R. The microlenses inside the capillary were formed by putting air bubbles into epoxy. It was found that the microlenses have spherical shape and its curvature radius R is equal to the capillary one 9 .…”

Section: Introductionmentioning

confidence: 99%

“…Two lenses with focal length 109 mm (lens #1) and 41 mm (lens #2) for 8 keV X-rays were used for experiments. Spherical microlenses were produced inside glass capillary with diameter 200 microns and 100 microns for lens #1 and #2 respectively by the method described in [7][8][9] . Lens #2 also was used as objective lens for a simple X-ray microscope.…”

Section: Introductionmentioning

confidence: 99%

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X-ray imaging with compound refractive lens and microfocus x-ray tube

et al. 2008

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Compound refractive lenses (CRL), consisting of a lot number in-line concave microlenses made of low-Z material were studied. Lenses with focal length 109 mm and 41 mm for 8-keV X-rays, microfocus X-ray tube and X-ray CCD camera were used in experiments. Obtained images show intensity distribution of magnified microfocus X-ray source focal spot. Within the experiments, one lens was also used as an objective lens of the X-ray microscope, where the copper anode X-ray microfocus tube served as a source. Magnified images of gold mesh with 5 microns bars were obtained. Theoretical limits of CRL and experimental results are discussed.

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Section: Imaging X-ray Tube Focal Spotmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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X-ray imaging with compound refractive lens and microfocus x-ray tube

et al. 2008

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“…The lens was produced in Institute of Applied Physics Problems of Belarus State University by the method described in [10][11][12]. Fig.2 shows photo of epoxy concave microlenses inside glass capillary.…”

Section: Lens Parametersmentioning

confidence: 99%

Projection-type x-ray microscope based on a spherical compound refractive x-ray lens

et al. 2007

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New projection-type X-ray microscope with a compound refractive lens as the optical element is presented. The microscope consists of an X-ray source that is 1-2 mm in diameter, compound X-ray lens and X-ray camera that are placed in-line to satisfy the lens formula. The lens forms an image of the X-ray source at camera sensitive plate. An object is placed between the X-ray source and the lens as close as possible to the source, and the camera shows a shadow image of the object. Spatial resolution of the microscope depends on the lens focal length, lens aperture and the distance from the source to the object. One to two micron resolution may be achieved by placing the object at a distance of 1-5 mm from the source. The X-ray source may be designed with the target deposited on a 200-µm thick Be window, which permits the object to be placed very close to the emitting surface. The tube focal spot is equal to 1-2 mm. Results of imaging experiments with an ordinary copper anode X-ray tube and a 10-cm focal length spherical compound refractive X-ray lens are discussed.

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“…The lens manufacturing process is detailed elsewhere. 6,7 Since matter has an index of refraction of less than 1 for x rays, the concave lens shapes provided by the epoxy serve to focus radiation. The lens used for these experiments was provided by Adelphi Technology, Inc., and consisted of 98 microlenses (bubble walls) in a capillary of 200 m diameter.…”

Section: Lens Parametersmentioning

confidence: 99%

X-ray imaging of an X-pinch plasma with a bubble compound refractive lens

Gary

Pikuz

Mitchell

et al. 2004

Review of Scientific Instruments

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We present diagnostic images taken of an X-pinch plasma x-ray source driven by the XP pulser ͑100 ns, 500 kA͒ at Cornell University using an x-ray bubble compound refractive lens. The lens consists of a 200 m inside diameter glass capillary that contains about 100 biconcave microlenses formed by a string of bubbles in epoxy. A precise system for lens alignment with of 3-5 arcmin accuracy is described. X-ray images of four-wire X pinches were obtained with a spatial resolution of approximately 2 m.

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A microcapillary lens for X-rays

Cited by 31 publications

References 3 publications

X-ray imaging with compound refractive lens and microfocus x-ray tube

X-ray imaging with compound refractive lens and microfocus x-ray tube

Projection-type x-ray microscope based on a spherical compound refractive x-ray lens

X-ray imaging of an X-pinch plasma with a bubble compound refractive lens

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