Performances of synchrotron radiation microbeam focused by monolithic half focusing polycapillary X-ray lens

Sun, Tao; Liu, Zhiguo; He, Bo; Wei, Shiqiang; Xie, Yi; Liu, Tao; Hu, Tiandou; Ding, Xunliang

doi:10.1016/j.nima.2007.02.069

Cited by 6 publications

(4 citation statements)

References 21 publications

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“…Было показано, что поликапиллярная фокусирующая линза совместно с рентгеновской микрофокусной трубкой может использоваться в медицине [58,61], рентгеновской микроскопии [62,63], для получения рентгеновского фазоконтрастного изображения [64], для микродифракции [65,66] Поликапиллярные полулинзы используются для эффективной фокусировки квазипараллельного пучка СИ с энергией в диапазоне 2−30 keV до небольших пятен (диаметром 10−50 µm) [79][80][81][82][83][84][85]. Поликапиллярные полулинзы также успешно используются в конфокальной рентгеновской оптике.…”

Section: поликапиллярная рентгеновская оптикаunclassified

Фокусирующая Капиллярная И Пористая Рентгеновская Оптика

Лидер¹

2021

Оптика И Спектроскопия

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Рассмотрены принципы работы и возможности рентгеновской фокусирующей капиллярной и пористой оптики. Особое внимание уделяется поликапиллярной оптике, конфокальной технике рентгеновского флуоресцентного анализа, а также широкоугольной оптике "глаза лобстера". Ключевые слова: рентгеновские лучи, фокусировка, капилляр, пористая оптика, оптика "глаза лобстера".

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Section: поликапиллярная рентгеновская оптикаunclassified

Фокусирующая Капиллярная И Пористая Рентгеновская Оптика

Лидер¹

2021

Оптика И Спектроскопия

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“…XAFS experiments are generally carried out with synchrotron radiation, and the position of the beam of the synchrotron radiation might change at different energies. However, when PXRO is used to focus such synchrotron radiation beam, the change in the position of the focal spot of PXRO is very slight because of PXRO not being an imaging optics and can be accordingly ignored at a scanning energy range of about 1 keV (Sun et al 2007c). …”

Section: Basics Of Confocal Xafsmentioning

confidence: 99%

Confocal X-ray technology based on capillary X-ray optics

Sun¹,

Ding²

2015

Reviews in Analytical Chemistry

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Capillary X-ray optics is versatile, and it can be used with synchrotron radiation source, conventional X-ray source, laser-plasma ultrafast X-ray source, and so forth. Recently, the confocal X-ray technology based on capillary X-ray optics has become popular, and it has been widely used in X-ray fluorescence, X-ray absorption fine structure, X-ray diffraction, small-angle X-ray scattering, X-ray imaging, and X-ray scattering. This confocal X-ray technology has applications in many fields, including environmental monitoring, food science, life science, chemistry, physics, nanomaterials, nondestructive test, security check, and so on.

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“…Capillary optics is a well-known x-ray focusing tool, and various capillary-based x-ray optics have been studied to produce intense x-ray beams [4][5][6][7]. A polycapillary x-ray lens is a type of x-ray focusing optical element, which consists of several hundred thousand glass capillary tubes that focus x-rays by total reflection within the capillaries.…”

Section: Introductionmentioning

confidence: 99%

Development of Fluorescence XAFS System in Soft X-Ray Region Toward Operando Conditions Using Polycapillary X-Ray Lens

Honda

Shimoyama

Baba

et al. 2016

e-J. Surf. Sci. Nanotech.

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We developed a fluorescence XAFS system toward operando conditions using soft x-ray radiation at KEK-PF BL-27A. X-ray adsorption fine structure (XAFS) analysis in the soft x-ray region is useful for elucidating molecular structures in both atmosphere and solutions. Particularly, light elements play an important role in many cases in this energy region. The attenuation of soft x-rays in a solution is large compared to that of hard x-rays. Thus, appropriate spectral statistics cannot be obtained in the soft x-ray region. Recently, using fluorescence XAFS measurement at the S K-edge (2.4 keV), we found that biological molecules containing sulfur atoms adopt specific molecular structures under different pH conditions in a solution. However, the diameter of the beam of this beam line at BL-27A was large, leading to difficulties in uniformly irradiating only the sample surface. Therefore, it was necessary to uniformly irradiate samples using a small-area x-ray beam. To collimate the beam and improve its intensity, we installed an x-ray focusing device. Herein, we introduce a light-collecting device that uses a polycapillary x-ray lens to focus soft x-rays. After installing this lens, we confirmed that focused x-rays and a higher-intensity beam were achieved. We conclude that focusing x-rays using a polycapillary lens in the soft x-ray region is an effective method for obtaining better spectral statistics in fluorescence XAFS measurements.

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Performances of synchrotron radiation microbeam focused by monolithic half focusing polycapillary X-ray lens

Cited by 6 publications

References 21 publications

Фокусирующая Капиллярная И Пористая Рентгеновская Оптика

Фокусирующая Капиллярная И Пористая Рентгеновская Оптика

Confocal X-ray technology based on capillary X-ray optics

Development of Fluorescence XAFS System in Soft X-Ray Region Toward Operando Conditions Using Polycapillary X-Ray Lens

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