The distance of the objective CRL from the sample was L 1 = 906 mm, resulting in an image distance of L 2 = 11,778 mm. This CRL was made up of 60 lenses with R = 0.05 mm and 321 lenses with R = 0.2 mm.

It is obvious that the image is practically free of aberrations.įigure 2 (right) shows a Ta Siemens star that is imaged at 46 keV by Al 2D lenses with a magnification factor L 2 / L 1 of 13 (private communication with M. The distance of the objective CRL from the sample was L 1 = 546 mm, yielding an image distance of L 2 = 5460 mm. A large magnification relieves the requirements on the resolution of the x-ray detector.įigure 2 (left) shows a Nickel mesh with a period of 12.7 μm that was imaged at 12 keV by 91 beryllium 2D lenses with R = 0.2 mm and a magnification factor L 2 / L 1 = 10 onto a high resolution film (from Lengeler et al. The image is formed by an objective lens with a small focal length which allows a large magnification L 2 / L 1. Usually, illumination of the object from behind is achieved by a prefocusing lens (condenser) in order to adjust the beam size to the sample (Figure 1, cf.

A common application for refractive lenses from RXOPTICS is x-ray imaging in transmission mode.

High resolution siemens star