Theory and practice of elliptically bent x-ray mirrors

Howells, Malcolm R.; Cambie, Daniela; Duarte, Robert; Irick, Steven C.; MacDowell, A. A.; Padmore, H. A.; Renner, T.; Rah, Seungyu; Sandler, Reubin

doi:10.1117/1.1289879

Cited by 94 publications

(68 citation statements)

References 32 publications

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“…An elliptical mirror (Howells et al, 2000) is usually designed by giving the incident grazing angle of the incident beam g and the focal positions: source-mirror distance p and mirrorfocus distance q. The semi-axes a and b of the ellipse are:…”

Section: Appendix C Elliptical Detrendingmentioning

confidence: 99%

DABAM: an open-source database of X-ray mirrors metrology

Río

Bianchi

Cocco

et al. 2016

J Synchrotron Radiat

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An open-source database containing metrology data for X-ray mirrors is presented. It makes available metrology data (mirror heights and slopes profiles) that can be used with simulation tools for calculating the effects of optical surface errors in the performances of an optical instrument, such as a synchrotron beamline. A typical case is the degradation of the intensity profile at the focal position in a beamline due to mirror surface errors. This database for metrology (DABAM) aims to provide to the users of simulation tools the data of real mirrors. The data included in the database are described in this paper, with details of how the mirror parameters are stored. An accompanying software is provided to allow simple access and processing of these data, calculate the most usual statistical parameters, and also include the option of creating input files for most used simulation codes. Some optics simulations are presented and discussed to illustrate the real use of the profiles from the database.

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Section: Appendix C Elliptical Detrendingmentioning

confidence: 99%

DABAM: an open-source database of X-ray mirrors metrology

Río

Bianchi

Cocco

et al. 2016

J Synchrotron Radiat

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“…The upstream and downstream benders apply a torque to the upstream and downstream ends of the mirror, with the ends as the centers of rotation. [20][21][22][23] The following procedures optimally configure the available degrees of freedom of both mirrors in situ. The first step for both mirrors is to simultaneously set the height and pitch of the mirrors.…”

Section: Optimal Settings Of Bendable Focusing Mirrorsmentioning

confidence: 99%

Methodology for optimalin situalignment and setting of bendable optics for nearly diffraction-limited focusing of soft x-rays

Merthe

Yashchuk

Goldberg³

et al. 2013

Opt. Eng

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Abstract. We demonstrate a comprehensive and broadly applicable methodology for the optimal in situ configuration of bendable soft x-ray Kirkpatrick-Baez mirrors. The mirrors used for this application are preset at the Advanced Light Source Optical Metrology Laboratory prior to beamline installation. The in situ methodology consists of a new technique for simultaneously setting the height and pitch angle of each mirror. The benders of both mirrors were then optimally tuned in order to minimize ray aberrations to a level below the diffraction-limited beam waist size of 200 nm ðhorizontalÞ × 100 nm ðverticalÞ. After applying this methodology, we measured a beam waist size of 290 nm ðhorizontalÞ × 130 nm ðverticalÞ with 1 nm light using the Foucault knife-edge test. We also discuss the utility of using a grating-based lateral shearing interferometer with quantitative wavefront feedback for further improvement of bendable optics.

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Section: Optical System For Diffraction-limited Focusing Of Soft X-raysmentioning

confidence: 99%

Methodology for optimal in situ alignment and setting of bendable optics for diffraction-limited focusing of soft x-rays

Merthe

Yashchuk

Goldberg³

et al. 2012

SPIE Proceedings

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We demonstrate a comprehensive and broadly applicable methodology for the optimal in situ configuration of bendable soft x-ray Kirkpatrick-Baez mirrors. The mirrors used for this application are preset at the ALS Optical Metrology Laboratory prior to beamline installation. The in situ methodology consists of a new technique for simultaneously setting the height and pitch angle of each mirror. The benders of both mirrors were then optimally tuned in order to minimize ray aberrations to a level below the diffraction-limited beam waist size of 200 nm (horizontal) × 100 nm (vertical). After applying this methodology, we measured a beam waist size of 290 nm (horizontal) × 130 nm (vertical) with 1 nm light using the Foucault knife-edge test. We also discuss the utility of using a grating-based lateral shearing interferometer with quantitative wavefront feedback for further improvement of bendable optics.

show abstract

Theory and practice of elliptically bent x-ray mirrors

Cited by 94 publications

References 32 publications

DABAM: an open-source database of X-ray mirrors metrology

DABAM: an open-source database of X-ray mirrors metrology

Methodology for optimalin situalignment and setting of bendable optics for nearly diffraction-limited focusing of soft x-rays

Methodology for optimal in situ alignment and setting of bendable optics for diffraction-limited focusing of soft x-rays

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