A Tabletop Micro X-ray Beam System for Single Cell Irradiation
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- AOI Yusuke
- Division of Electrical, Electronic and Information Engineering, Graduate School of Engineering, Osaka University
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- KUCHIMARU Takahiro
- Division of Electrical, Electronic and Information Engineering, Graduate School of Engineering, Osaka University
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- SATO Fuminobu
- Division of Electrical, Electronic and Information Engineering, Graduate School of Engineering, Osaka University
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- KATO Yushi
- Division of Electrical, Electronic and Information Engineering, Graduate School of Engineering, Osaka University
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- IIDA Toshiyuki
- Division of Electrical, Electronic and Information Engineering, Graduate School of Engineering, Osaka University
Bibliographic Information
- Other Title
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- 単一細胞照射実験のための小型マイクロX線ビーム装置
- タンイツ サイボウ ショウシャ ジッケン ノ タメノ コガタ マイクロ Xセン ビーム ソウチ
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Abstract
A tabletop micro X-ray beam irradiation system has been developed to research biological radiation effects on living cells. The micro beam system is composed of a micro focus X-ray tube, a capillary for X-ray guide, an inverted microscope and others.A beam profile was measured by the knife-edge method and the focused beam size was proved to be 12μm in diameter. The micro dosimetric characteristics of the single cell irradiation was investigated by a photon-electron transport simulation.The maximum dose rate for a targeting cell was estimated to be 0.05Gy/s.<BR>In a preliminary experiment, a normal human fibroblasts cell grown on a radiophotoluminescent glass plate was irradiated by the microbeam. After the irradiation, the targeting cell was stained with anti-γ-H2AX antibody to visualize the effects on DNA double strand breaks.In fluorescence microscopy, foci in the nucleus corresponding to the radiation damage and the X-ray beam spot were simultaneously observed at the position of the targeting cell.
Journal
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- Japanese Journal of Radiation Safety Management
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Japanese Journal of Radiation Safety Management 7 (2), 163-167, 2008
JAPANESE SOCIETY OF RADIATION SAFETY MANAGEMENT
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Details 詳細情報について
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- CRID
- 1390001205397257088
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- NII Article ID
- 130004175563
- 40016387356
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- NII Book ID
- AA11693866
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- ISSN
- 18849512
- 13471503
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- NDL BIB ID
- 9744517
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed