合肥光源基于同步光的测量与研究

介绍了合肥光源同步光测量系统,包括条纹相机系统、快速光电测量束团长度系统、束团横向截面测量系统和光位置测量系统.利用条纹相机系统和快速光电测量柬团长度系统进行了束团长度测量和束团伸长效应的研究.利用束流截面测量系统进行了六极铁对横向不稳定性抑制效果和横向反馈系统反馈效果的测量研究.光位置测量系统采用丝型光位置检测器和自行研制了对数处理?用于测量光源点的束流位置和角度.     

合肥光源基于同步光的测量与研究

介绍了合肥光源同步光测量系统, 包括条纹相机系统、快速光电测量束团长度系统、束团横向截面测量系统和光位置测量系统. 利用条纹相机系统和快速光电测量束团长度系统进行了束团长度测量和束团伸长效应的研究. 利用束流截面测量系统进行了六极铁对横向不稳定性抑制效果和横向反馈系统反馈效果的测量研究. 光位置测量系统采用丝型光位置检测器和自行研制了对数处理器, 用于测量光源点的束流位置和角度.     

同步辐射在ICF研究中的应用

介绍同步辐射在ICF研究中的应用,对多种ICF实验诊断用软X光探测元器件及设备利用北京同步辐射装置(BSRF)-3W1B作能量响应绝对标定.首先采取透射光栅分光和软X光面陈CCD观测记录,对光源进行性能研究.在50—1500eV能区分7个能段,通过不同材料的前置滤片抑制高次谐波,获得单色性好于95%的单色光.采用美国IRD公司生产的AXUV-100硅光二极管作次级标准探测器.利用BSRL的反射率计靶室及其相关联动调束系统,获得连续可调的单色光标定束.在该束线上进行了多轮实验.获得大量探测器标定数据用于ICF实验研究,提高了实验精度.     

Early History of Synchrotron Radiation Research in Japan

The Japanese electron synchrotron started operation on December 15, 1961, with energy of 750 MeV at the Institute for Nuclear Study (INS) of the University of Tokyo, Tanashi. It was established as a joint effort of the entire Japanese community of high-energy physicists so that its use was announced as being open to all Japanese users from the start.     

History of Synchrotron Radiation

Although natural synchrotron radiation from charged particles spiraling around magnetic-field lines in space is as old as the stars—for example, the light we see from the Crab Nebula—short-wavelength synchrotron radiation generated by relativistic electrons in circular accelerators is a modern phenomenon. The first observation—literally, since it was visible light that was seen—came at the General Electric Research Laboratory in Schenectady, New York, on April 24, 1947. In the 68 years since, synchrotron radiation has become a premier research tool for the study of matter in all its varied manifestations, as facilities around the world constantly evolved to provide this light in ever more useful forms.     

利用虚光子康普顿散射对同步辐射和回旋辐射的研究

从虚光子的康普顿散射出发,提出了一个同步辐射理论,其波长的计算结果与实验数据很吻合,该理论同时还解释了同步辐射的方向性和宽广的连续光谱等问题,并且当粒子的能量不大时,由该理论可以推出回旋辐射理论     

Synchrotron Radiation Research in Italy: The Early Years

The use of synchrotron radiation (SR) at the National Laboratories of Frascati (LNF) goes back in time. As early as the 1960s, a group of physicists and engineers under the leadership of B. Touschek [1 C. Bernardini, Il Nuovo Saggiatore 27, 6 (1986). [Google Scholar]] was involved in the pioneering work on the first storage ring “Anello di Accumulazione” (AdA) (Figure 1).     

Synchrotron and Undulator Radiation Experiments on the SIRIUS Synchrotron

This paper discusses the main results of synchrotron and undulator radiation experiments performed on the SIRIUS accelerator at Tomsk Polytechnical University. Some examples of the use of the SIRIUS synchrotron as a vacuum UV and soft-x-ray source for investigations in solid-state physics and for applied research are given.     

Synchrotron Radiation Facilities in China

Synchrotron radiation activities in China date back to the late 1970s. With the large increase of investment in science by the Chinese central government to promote the development of science and technology in China, quite a few large scientific projects were proposed by the scientific community, among which were Beijing Electron-Positron Collider (BEPC) and Hefei Synchrotron Radiation Light Source (HLS). The major aim of BEPC was for the studies of high energy particle physics with a parasitic synchrotron radiation facility, i.e., the so-called Beijing Synchrotron Radiation Facility (BSRF). It started operation in 1991 and became the first synchrotron radiation facility in China. As a parasitic facility, BSRF operated a few months a year and played an important role in fostering the synchrotron radiation user community in China. The HLS, a dedicated synchrotron radiation facility, came into operation almost at the same time as BSRF. As a lower energy synchrotron radiation facility, it aimed mostly at the applications of synchrotron radiation VUV wavelength range. Both BSRF and HLS were upgraded again due to strong demands from users. The rapid development of synchrotron radiation applications and facilities in the world in the 1980s and early 1990s spurred the great interest of Chinese scientists to build an advanced synchrotron radiation light source. A third generation light source was first proposed in mainland China in 1993 and was later shaped as the Shanghai Synchrotron Radiation Facility (SSRF) in 1995.     

同步辐射的相干模式

在分析了光源相干相体积的基础上，重点研讨了第三代同步辐射中波荡器（ｕｎｄｕｌａｔｏｒ）辐射的相干模式，能谱亮度，相干光子通量等，这对提高光束线相干能量的传输效率和软Ｘ光相干学束线的设计具有重要意义。     

Medical Applications of Synchrotron Radiation

Medical applications of synchrotron radiation range from infra-red spectroscopy to X-ray imaging and radiation therapy. In this issue we have chosen to highlight programs in the hard X-ray energy range where the imaging and therapy can potentially be carried out in vivo and in a clinical environment.     

用于同步辐射光源的成像板粉末衍射系统

报道了我们研制的一套成像板粉末衍射装置,对其误差来源进行了详细的分析讨论,并与衍射仪进行了比较.该装置的半径为143.3mm,最大测量角度范围不160°，最大角度(2q )偏差小于0.03°,这些性能指标已被实验所证实,完全可应用于粉末衍射全谱的测量.     

Synchrotron Radiation and Polymer Science IV

The fourth meeting on the use of Synchrotron Radiation in Polymer Science (SRPS) was held in Rolduc Abbey, the Netherlands, from September 8 to 11, 2009. This was a continuation of a topical series that was started by H.G. Zachmann, one of the pioneers of the use of synchrotron radiation techniques in polymer science. Earlier meetings were held in Hamburg (1995), Sheffield (2002), and Kyoto (2006). The meeting was organized as a satellite to SAS 2009, which took place the following week in Oxford. The meeting was co-organized by the polymer groups of Leuven University (Belgium) and Eindhoven University of Technology (Netherlands), as well as the DUBBLE beam line (ESRF/NWO/FWO).     

Adventures with Synchrotron Radiation at Harvard

In the late 1950s, a 6 GeV electron synchrotron (the CEA) was being built at Harvard/MIT. Ed Purcell, who generally trafficked in volts (or maybe kilovolts), but never gigavolts, was thinking about what one could do with all that synchrotron radiation that otherwise would uselessly warm up the walls of the beamline (I remember well his student Roger Tsien's nice drawing of radiation from kinks in the outgoing E-field lines of an electron in relativistic circular motion; see Figure 1).     

Recent In-Situ Experiments for Energy-Related Materials from Soochow University-Western University Center for Synchrotron Radiation Research

Soochow University–Western University Center for Synchrotron Radiation Research (SWC or the Center) was officially founded in November 2012 based on an agreement between Soochow University, China, and Western University, Canada. The mandate of the Center is to promote synchrotron-based research through collaborations among Center members and other synchrotron scientists in both research and education, particularly in the fields of nanomaterials and devices, materials for energy and the environment, chemical biology, as well as the development and application of novel synchrotron capabilities and theory.     

同步辐射软X射线多层膜反射偏振元件研究

利用多靶磁控溅射方法分别镀制了W/C和Mo/Si两种周期性结构多层膜。通过对其相关参数周期数、厚度比以及周期厚度的调整,使薄膜的布拉格衍射峰出现在布儒斯特角附近,两种多层膜的应用能量范围分别落于C的近K边处和Si的L边前。在北京同步辐射装置3W1B光束线的软X射线光学实验站上进行了反射率的测量,得到W/C膜的反射率在214eV时达到4.18%;Mo/Si周期性多层膜的反射率在89eV处达到32.3%。根据测量结果,分析了在同步辐射装置作为偏振元件的可行性