1995 Fiscal Year Annual Research Report

可変波長密接型軟X線顕微鏡システムの開発

Research Project

Project/Area Number	06559002
Research Institution	Gunma University
Principal Investigator	平野克己群馬大学, 医学部, 教授 (60008430)
Co-Investigator(Kenkyū-buntansha)	山本敏和群馬大学, 工学部, 助手 (40143200) 石川春律群馬大学, 医学部, 教授 (90010058) 伊藤文武群馬大学, 工学部, 教授 (60005907) 佐々木義智群馬大学, 工学部, 教授 (30008445)
Keywords	軟X線顕微鏡 / 軟X線源 / パルス的軟X線 / Zピンチ放電 / 大電流放電 / 画像処理
Research Abstract	この研究は、1〜100Åの波長領域の軟X線による、実用的な直接照射型軟X線顕微鏡を開発して、(1)細胞などの試料を脱水や着色することなく、生きたまま、高分解能で、サブマイクロ秒以下の露光による観測を可能としてブラウン運動などからもたらされるブレを避けること。(2)元素分析の機能を持たせること。すなわち同一試料に対して波長を変えた多こま撮影を可能とすることにより、試料中の特定の元素による顕微鏡像を得ること。(3)目的に合わせた画像処理法を開発して、得られた顕微鏡像の処理を行なうことにより、より有意義たらしめること。などを目的とする。本年度は(1)昨年度の成果をふまえて18μF,50kv(エネルギー22.5kJ)の大電流放電装置を電源とするパフ型Z放電軟X線源を常時使用可能とした。(2)単色または準単色の軟X線を、その放出強度を定量的にモニターしながら試料の照射実験を行った。(3)得られた顕微鏡像を走査型電子顕微鏡および原子間力顕微鏡で観察し画質の検討を行った。その結果、厳密にはまだ予備実験に止まるが、感光材としてフォトレジスト(PMMA,OEBR-1000)を用いた場合、感光材の位置で一回の放電あたり10^3mJ/cm^2以上、の半値幅約20nsの軟X線パルスにより、可視光波長程度の空間分解能で顕微鏡像の記録が可能とされた。現在、空間分解能を上げるための軟X線源と感光材の配列法および画像処理方法の検討が進行中である。

Research Products

(13 results)

All Other

All Publications (13 results)

[Publications] T. Yanagidaira: "System for Time-Resolved Obsevation of Impulsive Soft X-Ray Sources and Its Application to Plasma Forcus Experiment" Jpn. J. Appl. Phys.34. 5821-5824 (1995)
[Publications] J. Du: "Characterization of Soft X-Rays Generated in Gas-Puffed Z-Pinch" J. Phys. Soc. Japan. 64. 4185-4190 (1995)
[Publications] H. Kitaoka: "Enhanced Soft X-Ray Emissin in a Dense Plasma Focus with Additional High Z Gas Puff" J. Phys. Soc. Japan. 64. 4191-4195 (1995)
[Publications] K. Hirano: "Soft X-Ray Emitting Core in a Plasma Focus" J. Phys. Soc. Japan. 65. 139-141 (1996)
[Publications] P. K. Lawson: "Temperature Dependence of the Magnetic Compton Profile of Ferrimagnetic DyFe_2 and ErFe_2" J. Phys. : Condensed Matter. 7. 389-400 (1995)
[Publications] M. Ito: "X-Ray Magnetic Form Factor of UTe" J. Phys. Soc. Japan. 64. 2333-2337 (1995)
[Publications] H. Sakuraai: "Mgnetic Compton Profile of UTe" J. Phys. : Condensed Matter. 7. L599-L604 (1995)
[Publications] E. Nakazawa: "Occurrence of Fasciculated Microtubules at the Nodes of Ranvier in Rat Spinal Roots" J. Neurocytol.24. 399-407 (1995)
[Publications] H. Ohnishi: "Conversion of Amylase-Secreting Rat Pancreatic AR42J Cells to Neuronlike Cells by Activin A" J. Clin. Invest.95. 2304-2414 (1995)
[Publications] S. Kano: "Localization of 47 kD Antigenic Polypeptides in Mararia Parasites by Confocal Laser Scanning Microscopy" Bioimages. 3. 13-17 (1995)
[Publications] T. Yanagidaira: "A Time Resolved 1D Soft X-Ray Camara System for an Impulsive Source and Its Application to a Plasma Focus Experiment" Researchi Report NIFS-PROC Series, National Institute for Fusion Science, Nagoya,. NIFS-PROC-23 6. 136-145 (1995)
[Publications] J.Du: "Hot Spot Characterization in Gas Puffed Z-Pinch Experiment and Its Application to a Plasma Focus Experiment" Researchi Report NIFS-PROC Series, National Institute for Fusion Science, Nagoya,. NIFS-PROC-23 6. 146-155 (1995)
[Publications] H. Kitaoka: "Enhanced Stability and Increased Soft X-Ray Generation in a Dense Plasma Focus by Additional High Z gas Puff" Researchi Report NIFS-PROC Series, National Institute for Fusion Science, Nagoya,. NIFS-PROC-23 6. 156-165 (1995)

1995 Fiscal Year Annual Research Report

可変波長密接型軟X線顕微鏡システムの開発

Principal Investigator

平野 克己 群馬大学, 医学部, 教授 (60008430)

Research Products

[Publications] T. Yanagidaira: "System for Time-Resolved Obsevation of Impulsive Soft X-Ray Sources and Its Application to Plasma Forcus Experiment" Jpn. J. Appl. Phys.34. 5821-5824 (1995)

[Publications] J. Du: "Characterization of Soft X-Rays Generated in Gas-Puffed Z-Pinch" J. Phys. Soc. Japan. 64. 4185-4190 (1995)

[Publications] H. Kitaoka: "Enhanced Soft X-Ray Emissin in a Dense Plasma Focus with Additional High Z Gas Puff" J. Phys. Soc. Japan. 64. 4191-4195 (1995)

[Publications] K. Hirano: "Soft X-Ray Emitting Core in a Plasma Focus" J. Phys. Soc. Japan. 65. 139-141 (1996)

[Publications] P. K. Lawson: "Temperature Dependence of the Magnetic Compton Profile of Ferrimagnetic DyFe_2 and ErFe_2" J. Phys. : Condensed Matter. 7. 389-400 (1995)

[Publications] M. Ito: "X-Ray Magnetic Form Factor of UTe" J. Phys. Soc. Japan. 64. 2333-2337 (1995)

[Publications] H. Sakuraai: "Mgnetic Compton Profile of UTe" J. Phys. : Condensed Matter. 7. L599-L604 (1995)

[Publications] E. Nakazawa: "Occurrence of Fasciculated Microtubules at the Nodes of Ranvier in Rat Spinal Roots" J. Neurocytol.24. 399-407 (1995)

[Publications] H. Ohnishi: "Conversion of Amylase-Secreting Rat Pancreatic AR42J Cells to Neuronlike Cells by Activin A" J. Clin. Invest.95. 2304-2414 (1995)

[Publications] S. Kano: "Localization of 47 kD Antigenic Polypeptides in Mararia Parasites by Confocal Laser Scanning Microscopy" Bioimages. 3. 13-17 (1995)

[Publications] T. Yanagidaira: "A Time Resolved 1D Soft X-Ray Camara System for an Impulsive Source and Its Application to a Plasma Focus Experiment" Researchi Report NIFS-PROC Series, National Institute for Fusion Science, Nagoya,. NIFS-PROC-23 6. 136-145 (1995)

[Publications] J.Du: "Hot Spot Characterization in Gas Puffed Z-Pinch Experiment and Its Application to a Plasma Focus Experiment" Researchi Report NIFS-PROC Series, National Institute for Fusion Science, Nagoya,. NIFS-PROC-23 6. 146-155 (1995)

[Publications] H. Kitaoka: "Enhanced Stability and Increased Soft X-Ray Generation in a Dense Plasma Focus by Additional High Z gas Puff" Researchi Report NIFS-PROC Series, National Institute for Fusion Science, Nagoya,. NIFS-PROC-23 6. 156-165 (1995)

平野克己群馬大学, 医学部, 教授 (60008430)