Development of Advanced Techniques for the Generation of High Luminosity X-ray Pulse by the Inverse Compton Scattering

逆康普顿散射产生高光度X射线脉冲先进技术的发展

• 批准号: 12480142
• 负责人: WASHIO Masakazu
• 金额: $ 10.18万
• 依托单位: Waseda University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2000
• 资助国家: 日本
• 起止时间: 2000 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-12480142/
• 关键词: High Quality Electron BEam; Timing Synchronization; Position Stability; High Intense Laser; The Inverse Compton Scattering; High Luninosity X-ray; Picosecond; Water Window; 逆コンプトン散乱; 軟X線; 電子ビーム; レーザー; 高周波電子銃; X線顕微鏡; X線

High quality electron beam generation by using a laser photo-cathode RF gun system has been performed The emittance value for the electron beam was very low enough for the Inverse Compton Scattering experiments. On the other hand, laser system for the collision with the electron beam was investigated We have achieved the stabilization of laser beam output intensity and timing to the local oscillator. The output stability was evaluated by the PSD (Power Spectrum Density) method and the value was less than 0.03%. The timing jitter was also evaluated by the same method and the value was less than 0.26ps. The pulse length of the electron beam has been measured by the new nondestructive technique named frequency analysis. The results show that the method is applicable for the measurement of electron pulse with pico-second renge. The simulation of the Inverse Compton Scattering has been performed and the optimization of the system has been realized As the results of the simulation, soft X-ray can be generated with the energy of several hundreds of eV, that is called as water windows, by the combination of the RF gun and the Nd : YLF laser. We have carried out the scattering experiment between 4.2 MeV electron beam and Nd : YLF laser, and obtained the clear X-ray signal from the X-ray, which has the time duration or 7. 7 ps with the energy of 300 eV.

用激光光阴极射频电子枪系统产生了高质量的电子束，其发射度很低，足以满足逆康普顿散射实验的要求。另一方面，对与电子束碰撞的激光系统进行了研究，实现了激光输出强度的稳定和对本振定时的稳定。用功率谱密度法对输出稳定性进行了评价，其值小于0.03%。用同样的方法对定时抖动进行了测试，其值小于0.26ps。用频率分析法测量了电子束脉冲宽度。结果表明，该方法适用于皮秒量级电子脉冲的测量。模拟结果表明，利用射频电子枪和Nd：YLF激光器的组合，可以产生几百eV的软X射线，即水窗。我们进行了4.2MeV电子束与Nd：YLF激光的散射实验，获得了清晰的X射线信号，其持续时间为7。7ps，能量为300eV。

项目成果

T.Oshima et al.: "All-Solid-State Picosecond Laser System for Photo Cathode RF-Gun and X-Ray Generation at Waseda University"Proceedings of 2001 Particle Accelerator Conference. 2400-2402 (2001)

T.Oshima 等人：“早稻田大学用于光电阴极射频枪和 X 射线生成的全固态皮秒激光系统”2001 年粒子加速器会议论文集。

R.Kuroda et al.: "High-quality beam generation using an RF gun and a 150 MeV microtron"Nuclear Instruments and Methods in Physics Research (Section A). Vol.455. 222-227 (2000)

R.Kuroda 等人：“使用射频枪和 150 MeV 微加速器生成高质量光束”物理研究中的核仪器和方法（A 部分）。

S.Kashiwagi, Y.Hama, et al.: "High quality electron beam science at Waseda University"Int.J.Applied Electromagnetics & Mechanics. 14. 157-162 (2002)

S.Kashiwagi、Y.Hama 等人：“早稻田大学的高质量电子束科学”Int.J.Applied ElectroMagnetics

S.Kashiwagi, Y.Hama, S.Hara, H.Ishikawa, R.Kuroda, T.Kobuki, T.Oshima, K.Sato, M.Washio, A.Yada, J.Urakawa, H.Hayano: "High quality electron beam science at Waseda University"Int. J. Appl. Electromagnetics and Mechanics. 14. 157-162 (2001-2002)

S.Kashiwagi、Y.Hama、S.Hara、H.Ishikawa、R.Kuroda、T.Kobuki、T.Oshima、K.Sato、M.Washio、A.Yada、J.Urakawa、H.Hayano：“高

R.Kuroda et al.: "DEVELOPMENT OF PULSED SOFT X-RAY SOURCE AT WASEDA UNIVERSITY"Proceedings of Second Asia Particle Accelerator Conference. 920-922 (2001)

R.Kuroda 等：“早稻田大学脉冲软 X 射线源的开发”第二届亚洲粒子加速器会议论文集。