Soft X-ray diffraction patterns measured by a LiF detector with sub-micrometre resolution and an ultimate dynamic range; Journal of Synchrotron Radiation; Vol. 27, iss. 3
| Parent link: | Journal of Synchrotron Radiation Vol. 27, iss. 3.— 2020.— [625-632 p.] |
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| Corporate Author: | |
| Other Authors: | , , , , , , , , , , , , , , |
| Summary: | Title screen The unique diagnostic possibilities of X-ray diffraction, small X-ray scattering and phase-contrast imaging techniques applied with high-intensity coherent X-ray synchrotron and X-ray free-electron laser radiation can only be fully realized if a sufficient dynamic range and/or spatial resolution of the detector is available. In this work, it is demonstrated that the use of lithium fluoride (LiF) as a photoluminescence (PL) imaging detector allows measuring of an X-ray diffraction image with a dynamic range of ~10⁷ within the sub-micrometre spatial resolution. At the PETRA III facility, the diffraction pattern created behind a circular aperture with a diameter of 5 µm irradiated by a beam with a photon energy of 500 eV was recorded on a LiF crystal. In the diffraction pattern, the accumulated dose was varied from 1.7 ˣ 10⁵ J cm⁻³ in the central maximum to 2 ˣ 10⁻² J cm⁻³ in the 16th maximum of diffraction fringes. The period of the last fringe was measured with 0.8 µm width. The PL response of the LiF crystal being used as a detector on the irradiation dose of 500 eV photons was evaluated. For the particular model of laser-scanning confocal microscope Carl Zeiss LSM700, used for the readout of the PL signal, the calibration dependencies on the intensity of photopumping (excitation) radiation (λ = 488 nm) and the gain have been obtained. |
| Language: | English |
| Published: |
2020
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| Subjects: | |
| Online Access: | https://doi.org/10.1107/S1600577520002192 |
| Format: | Electronic Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=663087 |
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| 200 | 1 | |a Soft X-ray diffraction patterns measured by a LiF detector with sub-micrometre resolution and an ultimate dynamic range |f S. Makarov , S. Pikuz, S. Ryazantsev [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 330 | |a The unique diagnostic possibilities of X-ray diffraction, small X-ray scattering and phase-contrast imaging techniques applied with high-intensity coherent X-ray synchrotron and X-ray free-electron laser radiation can only be fully realized if a sufficient dynamic range and/or spatial resolution of the detector is available. In this work, it is demonstrated that the use of lithium fluoride (LiF) as a photoluminescence (PL) imaging detector allows measuring of an X-ray diffraction image with a dynamic range of ~10⁷ within the sub-micrometre spatial resolution. At the PETRA III facility, the diffraction pattern created behind a circular aperture with a diameter of 5 µm irradiated by a beam with a photon energy of 500 eV was recorded on a LiF crystal. In the diffraction pattern, the accumulated dose was varied from 1.7 ˣ 10⁵ J cm⁻³ in the central maximum to 2 ˣ 10⁻² J cm⁻³ in the 16th maximum of diffraction fringes. The period of the last fringe was measured with 0.8 µm width. The PL response of the LiF crystal being used as a detector on the irradiation dose of 500 eV photons was evaluated. For the particular model of laser-scanning confocal microscope Carl Zeiss LSM700, used for the readout of the PL signal, the calibration dependencies on the intensity of photopumping (excitation) radiation (λ = 488 nm) and the gain have been obtained. | ||
| 461 | |t Journal of Synchrotron Radiation | ||
| 463 | |t Vol. 27, iss. 3 |v [625-632 p.] |d 2020 | ||
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| 610 | 1 | |a труды учёных ТПУ | |
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| 610 | 1 | |a LiF detectors | |
| 610 | 1 | |a color centers | |
| 610 | 1 | |a дифракционные картины | |
| 610 | 1 | |a центры окраски | |
| 610 | 1 | |a детекторы LiF | |
| 610 | 1 | |a рентгеновское излучение | |
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| 610 | 1 | |a X-Ray | |
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