X-ray Phase-Contrast Imaging and X-ray Absorption Fine Structure Analysis using Parametric X-ray Radiation Generated at LEBRA, Nihon University

Tanaka, Sakae; Hayakawa, Yasushi; Takahashi, Yasuhiko; Tanaka, Toshinari; Hayakawa, Katsumi; Kuwada, Takao; Nakao, Keisuke; Nogami, K.; Inagaki, Manabu; Yamamoto, Hiroshi; Iwata, Naoki; Suzuki, Kaoru; Mori, Akira; Tanimoto, Yasuhiro; Hayakawa, Tohru; Suwa, Taketoshi; Numata, Yoshihiro; Suemitsu, Maki; Sato, Yukie; Okada, Hiroyuki; Yamamoto, Hirotsugu; Koike, Sekiya; Kaneda, Takashi; Nishimura, Hitoshi; Kitamura, Eiji; Hata, Saya; Akimoto, Yoshiaki; Suzuki, Kunihiro; Yamamoto, Hitoshi; Shintomi, T.; Sato, Iori

doi:10.5466/ijoms.9.122

Cited by 5 publications

(1 citation statement)

References 49 publications

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“…The typical measurement time is in the range of 1-4 h, and it is acceptable as a user application in a machine time at the LEBRA facility. In addition to tomographic imaging, the PXR source has been frequently applied to diffraction-enhanced imaging (DEI), a kind of phase-contrast imaging that is capable of detecting the x-ray refraction and scattering caused by passing through a sample [11][12][13][14]. Since the x-ray refraction angle is limited to the μrad order, the method requires strict spatial coherence for the x-ray source.…”

Section: Introductionmentioning

confidence: 99%

Performance of K -edge subtraction tomography as an application of parametric x-ray radiation

Hayakawa

Nogami

et al. 2019

Phys. Rev. Accel. Beams

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We developed a novel method for element detection utilizing an x-ray source based on parametric x-ray radiation (PXR), an accelerator-based light source at the Laboratory for Electron Beam Research and Application (LEBRA), Nihon University. The method is a type of K-edge subtraction (KES) imaging that uses the drastic change of x-ray absorption around the K-shell absorption edge of the target element. Using the properties of PXR, simultaneous KES imaging is possible, and can easily be applied to 3-dimensional (3D) computed tomography (CT). We demonstrated the feasibility of simultaneous KES-CT in our previous work. In this study, we investigate the quantitative performance of simultaneous KES imaging for a sample containing the element strontium (Sr) for which the K-edge energy is 16.1 keV. Results of a simultaneous KES-CT experiment employing the LEBRA-PXR source confirm that the imaging method can provide a 3D distribution of the element with a value proportional to the Sr concentration. Concerning sensitivity to element concentration, at least in the region of 0.5%-concentration, the sample was successfully distinguished from the region without Sr in the 3D tomographic image obtained using the element-imaging technique.

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Section: Introductionmentioning

confidence: 99%

Performance of K -edge subtraction tomography as an application of parametric x-ray radiation

Hayakawa

Nogami

et al. 2019

Phys. Rev. Accel. Beams

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A Preliminary Study on Low-dose X-ray Imaging Using Parametric X-ray

Tanaka

Hayakawa

Takahashi

et al. 2011

J. Hard Tissue Biology.

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Abstract:Parametric X-ray (PXR) is a new type of radiography with variable monochrome wavelength and high coherent characteristics. The Laboratory for Electron Beam Research and Application (LEBRA) at Quantum Science Institute, Nihon University generated LEBRA-PXR, a system that irradiates Si crystal with electron accelerated by linear accelerator (LINAC). LEBRA-PXR is uniquely developed for world-wide application experiment. X-ray images of tooth samples were taken with flat panel detector using LEBRA-PXR. As a result, images were captured as short as 1 sec. LEBRA-PXR uses LINAC with micro-macro pulse electron beam structure. Imaging time of 1 sec is equivalent to about 0.025 msec when x-ray is converted to actual radiation exposure. The effective dose point estimates of x-rays were about 1 µ Sv/5 sec. Results show that LEBRA-PXR can be used to generate low dose x-ray imaging advocating the possibility of its application in biological studies and medical treatment.

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Basic Study of Parametric X-ray Radiation for Clinical Diagnosis using 125MeV Linear Particle Accelerator

Okada

Kaneda

Koike

et al. 2015

J. Hard Tissue Biology.

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Abstract:We demonstrated some different contrasts of cat mandibular squamous cell carcinoma using parametric X-ray radiation at the Laboratory for Electron Beam Research and Application at Nihon University (LEBRA-PXR). A conventional X-ray image revealed a bone tumorous lesion in the mandible. LEBRA-PXR images (20, 25 and 30KeVs) showed some contrasts related to the wavelengths. LEBRA-PXR displayed contrasts which differed from those of conventional X-ray images, suggesting LEBRA-PXR may be useful for diagnostic imaging as a new X-ray source.

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X-ray Phase-Contrast Imaging and X-ray Absorption Fine Structure Analysis using Parametric X-ray Radiation Generated at LEBRA, Nihon University

Cited by 5 publications

References 49 publications

Performance of K -edge subtraction tomography as an application of parametric x-ray radiation

Performance of K -edge subtraction tomography as an application of parametric x-ray radiation

A Preliminary Study on Low-dose X-ray Imaging Using Parametric X-ray

Basic Study of Parametric X-ray Radiation for Clinical Diagnosis using 125MeV Linear Particle Accelerator

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