Note: A Laue crystal imager for high energy quasi-monochromatic x-ray

A newly designed transmission type x-ray Laue imager for tens of keV hard x-rays is reported. Compared with the traditional reflection type x-ray crystal imager, the transmission geometry produces a much better image quality for high energy hard x-rays. This system was assessed via a calibration exp...

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Veröffentlicht in:Review of scientific instruments 2018-09, Vol.89 (9), p.096106-096106
Hauptverfasser: Zhang, Zhe, Nishimura, Hiroaki, Yao, Akira, Suzuki, Yosuke, Shobu, Takahisa, Yasuda, Ryo, Yogo, Akifumi, Li, Yutong
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Sprache:eng
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Zusammenfassung:A newly designed transmission type x-ray Laue imager for tens of keV hard x-rays is reported. Compared with the traditional reflection type x-ray crystal imager, the transmission geometry produces a much better image quality for high energy hard x-rays. This system was assessed via a calibration experiment performed at the SPring8 synchrotron radiation facility. With a Ta x-ray fluorescer, the mono-energetic x-ray at 70 keV from the synchrotron radiation was converted to an isotropically emitted Ta K-shell source at 57.5 keV and 65 keV. A tungsten pinhole array was employed as the test object, and clear images of the pinholes with a magnification of ∼5 were acquired. These images exhibited superior quality in the dispersion plane. As an extension of this work, a slit-free full-spectral Laue imager is proposed for high resolution hard x-ray imaging.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.5046108