Development and application of aberration-compensating x-ray phase retarder systems

Kouhei Okitsu; Yoshinori Ueji; Yoshiyuki Amemiya

doi:10.1117/12.504098

23 December 2003 Development and application of aberration-compensating x-ray phase retarder systems

Kouhei Okitsu, Yoshinori Ueji, Yoshiyuki Amemiya

Proceedings Volume 5195, Crystals, Multilayers, and Other Synchrotron Optics; (2003) https://doi.org/10.1117/12.504098
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

Abstract

X-ray phase-retarder systems to compensate for aberrations which arise from angular divergence and energy spread of x rays, have been developed. The two-quadrant x-ray phase-retarder system consists of two diamond crystals of almost identical thickness. It can compensate for off-axis aberration (phase-shift inhomogeneity due to angular divergence of incident x rays). The four-quadrant x-ray phase-retarder system consists of four diamond crystals of almost identical thickness. The scattering planes of four phase retarders were set to be inclined by 45 deg, 135 deg (= 45 deg + 90 deg), 225 deg (= 45 deg + 180 deg) and 315 deg (= 45 deg + 270 deg), respectively, with respect to the direction of incident polarization. It can compensate for not only the off-axis aberration but also chromatic aberration (phase-shift inhomogeneity due to energy spread of incident x rays). The principles and applications of the two-quadrant and four-quadrant phase-retarder systems will be described.

Citation Download Citation

Kouhei Okitsu, Yoshinori Ueji, and Yoshiyuki Amemiya "Development and application of aberration-compensating x-ray phase retarder systems", Proc. SPIE 5195, Crystals, Multilayers, and Other Synchrotron Optics, (23 December 2003); https://doi.org/10.1117/12.504098

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KEYWORDS

Wave plates

Crystals

X-rays

Polarization

Diamond

Chromatic aberrations

Polarizers

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