| Project/Area Number |
17560046
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Applied physics, general
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| Research Institution | Nihon University |
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Principal Investigator |
TAKAHASHI Yumiko Nihon University, College of Science and Technology, Research Associate, 理工学部, 助手 (70339258)
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| Co-Investigator(Kenkyū-buntansha) |
HAYAKAWA Yasushi Nihon University, College of Science and Technology, Associate Professor, 理工学部, 助教授 (40307799)
TAKANO Yoshiki Nihon University, College of Science and Technology, Professor, 理工学部, 教授 (30171466)
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| Project Period (FY) |
2005 – 2006
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| Project Status |
Completed (Fiscal Year 2006)
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| Budget Amount *help |
¥3,400,000 (Direct Cost: ¥3,400,000)
Fiscal Year 2006: ¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 2005: ¥1,400,000 (Direct Cost: ¥1,400,000)
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| Keywords | Parametric X-ray radiation / X-ray diffraction / Imaging / Time resolved measurement / Structure of materials / Soft matter / Accelerator |
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| Research Abstract |
In the Laboratory for Electron Beam Research and Application (LEBRA) at Nihon University, a parametric X-ray radiation (PXR) generator system was constructed using high-energy electron beams from the 125 MeV electron linear accelerator. For an application to the material science, a new X-ray measurement system using PXR was studied
(1) Construction of PXR beam line
A fundamental X-ray diffraction system was assembled on the PXR beam line. Application facilities for Fluorescence X-ray analysis and imaging were also added to the system.
(2) Stabilization of PXR
Stability of the electron beam, optical elements and control devices were investigated. After the improvement, the fluctuation of electron beam has been controlled under 0.05 %. Since the angular instability of goniometer, which was about 1 arcsec/h is not enough for precision measurement, it was changed to the high spec machine. It was clarified that the effect of environment such as the room temperature is not negligible.
(3) Time resolved measurement
Time resolved measurement became practicable by using the RF signal of accelerator. It is applied to the gate system of CCD as a trigger signal.
(4) Application
The structures of macromolecules and biological materials were measured. The applied study using PXR was achieved for the first time in the world.
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