On-axis viewing: Sample visualization along the synchrotron X-ray beam

K. J. Gofron; M. Molitsky; R. W. Alkire; A. Joachimiak

doi:10.1016/j.nima.2010.12.085

On-axis viewing: Sample visualization along the synchrotron X-ray beam

K. J. Gofron, M. Molitsky, R. W. Alkire, A. Joachimiak

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

The SBC on-axis visualization system allows viewing of biological crystal samples along the X-ray beam direction, without image degradation and without parallax distortion. The on-axis system was constructed using a long working distance MaksutovCassegrain (MC) reflective microscope, and a right angle (45°) externally reflecting mirror. The minimum size of the right angle mirror and the maximum size of the hole through which X-rays pass depend on the sample to mirror distance as well as the required field of view and optics working distance. The on-axis system allows biological crystal visualization during diffraction data collection with full Kappa geometry without image degradation (paraxial cone rays are excluded from the image plane). On the basis of these observations it is recommended that users seriously consider on-axis reflective rather than refractive optics as the primary visualization technique.

Original language	English
Pages (from-to)	109-111
Number of pages	3
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	649
Issue number	1
DOIs	https://doi.org/10.1016/j.nima.2010.12.085
State	Published - Sep 1 2011
Externally published	Yes

Keywords

Fluorescence
On-axis
Scintillator
Single crystal
Synchrotron
X-ray

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10.1016/j.nima.2010.12.085

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abstract = "The SBC on-axis visualization system allows viewing of biological crystal samples along the X-ray beam direction, without image degradation and without parallax distortion. The on-axis system was constructed using a long working distance MaksutovCassegrain (MC) reflective microscope, and a right angle (45°) externally reflecting mirror. The minimum size of the right angle mirror and the maximum size of the hole through which X-rays pass depend on the sample to mirror distance as well as the required field of view and optics working distance. The on-axis system allows biological crystal visualization during diffraction data collection with full Kappa geometry without image degradation (paraxial cone rays are excluded from the image plane). On the basis of these observations it is recommended that users seriously consider on-axis reflective rather than refractive optics as the primary visualization technique.",

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AU - Alkire, R. W.

AU - Joachimiak, A.

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KW - Synchrotron

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On-axis viewing: Sample visualization along the synchrotron X-ray beam

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Keywords

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