Development of a high-resolution beam profile monitor using zone plates

使用波带片开发高分辨率光束轮廓监视器

• 批准号: 16540234
• 负责人: NAKAMURA Norio
• 金额: $ 2.5万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2004
• 资助国家: 日本
• 起止时间: 2004 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-16540234/
• 关键词: Zone plate; Beam profile; Beam size; Accelerator; High-brilliance light source; Beam monitor; Synchrotron Radiation; X-ray imaging optics

By this project, performance and reliability of this beam profile monitor was greatly improved and this monitor became fully practical. The research results are summarized below.1. Background due to transmitted X-rays through the zone plates was much reduced by an X-ray pinhole mask installed around the focus point of the first zone plate.2. Vibrations of the zone plates were measured by seismometers and their effect on spatial resolution of the monitor was evaluated. As a result, the vibration effect was negligibly small even by taking magnification of the imaging system into account and the configuration of the zone plates insensitive to vibrations was studied.3. An estimation method of spatial resolution of the monitor and the effects of the zone-plate alignment errors on the resolution was established by using a developed computer code based on wave optics. By this code, the tolerable ranges of the alignment errors were also obtained. Analysis using a developed ray-tracing code was successfully performed.4. A system for synchronization with injection was added to this monitor. As a result, we succeeded in obtaining the damping time of the KEK-ATF damping ring with the damping wiggler on and off by measuring the beam size as function of the time after injection. The synchronization system enabled us to do various beam diagnoses related to injection.5. Time resolution of the monitor was greatly improved by installing the fast mechanical shutter around the focusing point of the first zone plate. As a result, the effect of the fast position movement of the beam image on the beam size measurement was removed.6. Remote control of the monitor system from the accelerator control room was realized. Thus measurements of beam profiles and sizes can be linked with control of the accelerator and easily be done at any time during the accelerator operation.

通过这个项目，该光束配置文件监视器的性能和可靠性得到了极大的提高，并且该监视器变得完全实用。研究结果总结为1。由于X射线板的X射线遮罩，在第一个区域板的聚焦点附近安装了X射线针孔掩模，因此背景大大降低了。2。通过地震仪测量区域板的振动，并评估了其对监视器空间分辨率的影响。结果，即使考虑了对成像系统的放大，并且研究了对振动不敏感的区域板的构型，振动效果也很小。3。通过使用基于Wave Optics的开发的计算机代码，建立了监视器空间分辨率的估计方法以及区域板对齐误差对分辨率的影响。通过此代码，还获得了对齐错误的可容忍范围。使用开发的射线追踪代码进行分析成功执行。4。将与注入同步的系统添加到该监视器中。结果，我们成功地获得了kek-atf阻尼环的阻尼时间，并通过在注射后的时间的功能中测量梁大小，并通过测量梁的大小来打开和关闭阻尼的摇摆器。同步系统使我们能够进行与注射有关的各种光束诊断。5。通过在第一区板的聚焦点上安装快速机械快门，可以极大地改善监视器的时间分辨率。结果，删除了光束图像对光束尺寸测量的快速位置运动的影响6。实现了从加速器控制室的监视器系统的遥控器。因此，可以将梁曲线和尺寸的测量值与对加速器的控制联系起来，并在加速器操作期间的任何时候轻松完成。

项目成果

Performance Evaluation of a Beam Profile Monitor using Fresnel Zone Plates

使用菲涅尔波带板的光束轮廓监测器的性能评估

• 发表时间: 2005
• 期刊: Proceedings of the 2^<nd> Annual Meeting of Particle Accelerator Society of Japan and the 29^<th> Linear Accelerator Meeting in Japan
• 作者: Yasutake;N.;S.Aoki;T.Ishikawa et al.;T.Ishikawa;T.Ishikawa;T.Ishikawa et al.;T.Ishikawa et al.;T.Ishikawa;Hiroshi Sakai;Hiroshi Sakai;Toshiya Muto
• 通讯作者: Toshiya Muto

フレネルゾーンプレートを用いた高分解能ビームプロファイルモニタの開発

使用菲涅耳波带片开发高分辨率光束轮廓监视器

• 发表时间: 2004
• 期刊: 日本放射光学会誌「放射光」 17巻4号
• 作者: Yasutake;N.;S.Aoki;T.Ishikawa et al.;T.Ishikawa;T.Ishikawa;T.Ishikawa et al.;T.Ishikawa et al.;T.Ishikawa;Hiroshi Sakai;Hiroshi Sakai;Toshiya Muto;Takeshi Naito;Hiroshi Sakai;Hiroshi Sakai;Toshiya Muto;Takeshi Naito;Hiroshi Sakai;Toshiya Muto;Takeshi Naito;Norio Nakamura;Norio Nakamura;中村 典雄
• 通讯作者: 中村 典雄

An Electron-Beam Profile Monitor Using Fresnel Zone Plates

使用菲涅尔波带板的电子束轮廓监测器

• 发表时间: 2004
• 期刊: Proceedings of the 8^<th> International Conference on Synchrotron Radiation Instrumentation : AIP Conference Proceedings 705
• 作者: Yasutake;N.;S.Aoki;T.Ishikawa et al.;T.Ishikawa;T.Ishikawa;T.Ishikawa et al.;T.Ishikawa et al.;T.Ishikawa;Hiroshi Sakai;Hiroshi Sakai;Toshiya Muto;Takeshi Naito;Hiroshi Sakai;Hiroshi Sakai;Toshiya Muto;Takeshi Naito;Hiroshi Sakai;Toshiya Muto;Takeshi Naito;Norio Nakamura
• 通讯作者: Norio Nakamura

Measurement of the beam profiles with the improved Fresnel zone plate monitor

使用改进的菲涅耳波带片监视器测量光束轮廓

• 发表时间: 2006
• 期刊: Proceedings of the 10^<th> European Particle Accelerator Conference
• 作者: Yasutake;N.;S.Aoki;T.Ishikawa et al.;T.Ishikawa;T.Ishikawa;T.Ishikawa et al.;T.Ishikawa et al.;T.Ishikawa;Hiroshi Sakai
• 通讯作者: Hiroshi Sakai

Development of a high-resolution beam profile monitor using Fresnel zone plates

使用菲涅尔波带片开发高分辨率光束轮廓监视器

• 发表时间: 2004
• 期刊: Journal of the Japanese Society for Synchrotron Radiation Research Vol.17, No.4
• 作者: Yasutake;N.;S.Aoki;T.Ishikawa et al.;T.Ishikawa;T.Ishikawa;T.Ishikawa et al.;T.Ishikawa et al.;T.Ishikawa;Hiroshi Sakai;Hiroshi Sakai;Toshiya Muto;Takeshi Naito;Hiroshi Sakai;Hiroshi Sakai;Toshiya Muto;Takeshi Naito;Hiroshi Sakai;Toshiya Muto;Takeshi Naito;Norio Nakamura;Norio Nakamura;中村 典雄;Norio Nakamura
• 通讯作者: Norio Nakamura