^[1]Japan Synchrotron Radiation Research Institute(JASRI)、^[2]The Institute of Physical and Chemical Research (RIKEN)、^[3]Japan Synchrotron Radiation Research Institute(JASRI)、^[4]NEC Fundamental Research Laboratory、^[5]Japan Synchrotron Radiation Research Institute(JASRI) and The Institute of Physical and Chemical Research (RIKEN)

Abstract: We discuss recent advances in instrumentation for high resolution inelastic x-ray scattering and nuclear resonant scattering of synchrotron radiation at BL35XU. Notable points are demonstration of the backscattering monochromator performance over long scan ranges, significant improvements in analyzer crystal perfection and a setup for nuclear scattering from the 25.6 keV resonance of ¹⁶¹Dy. The last includes a new compact optical design yielding 2×10⁸ photons/sec into a 0.52 meV bandwidth at 25.6 keV and a detector with ~200 ps time resolution and ~20% efficiency at 25.6 keV.

Pages 98 - 102 Download PDF (334.02 KB)

3. その他のビームライン／OTHER BEAMLINES

産業界専用ビームライン（BL16XU/B2）の現状
Present Status of Industrial Consortium Beamlines for Materials Research (BL16XU/B2)

久保　佳実　KUBO Yoshimi

日本電気㈱　システムデバイス・基礎研究本部　基礎研究所（産業用専用ビームライン建設利用共同体　幹事長）　Fundamental Research Laboratories, NEC Corporation

Pages 103 - 107 Download PDF (121.27 KB)

R&DビームラインIII（BL38B1）の現状
Present Status of R&D Beamline III BL38B1

谷田　肇　TANIDA Hajime、三浦　圭子　MIURA Keiko

（財）高輝度光科学研究センター　放射光研究所　利用促進部門　JASRI Experimental Facilities Division

Abstract: The installation of the R&D beamline III (BL38B1) was started from November 2000. The X-ray source of BL38B1 is a bending magnet and mirror-focused monochromatic beam is useful for both XAFS and protein crystallography. A wide range of X-ray energy with the mirror angle of 0 to 3.2 mrad is available for many purposes such as XAFS experiment, optics and detector development, and design of new experimental technique. A CCD X-ray detector for protein crystallography have been installed. This beamline is open for SPring-8 staff and public users from 2001A.

Pages 108 - 112 Download PDF (428.74 KB)

挿入光源の現状
Status of SPring-8 Insertion Devices

田中　隆次　TANAKA Takashi

理化学研究所　播磨研究所　RIKEN Harima Institute

Abstract: The number of IDs installed in the storage ring as of January 2001 is 23, which corresponds to about two thirds of the number of straight sections available for IDs. Most of the ID beamlines adopt IDs called standard in-vacuum undulators with the periodic length of 32 mm, which can supply hard x rays between 5 and 80 keV using up to the 5^th harmonic. As for other beamlines, very exotic devices such as helical, figure-8 or revolver undulators are adopted to provide special polarization states, very high flux, or very wide energy range. In this report, the status of IDs is presented including recent topics concerning the ID construction at SPring-8.

Pages 113 - 115 Download PDF (86.53 KB)

4. 最近の研究から／FROM LATEST RESEARCH

新しいフラーレン分子Sc₂＠C₆₆の構造を決定
Structure Determination of Unconventional Fullerene Sc₂＠C₆₆

高田　昌樹　TAKATA Masaki^[1]、西堀　英治　NISHIBORI Eiji^[1]、坂田　誠　SAKATA Makoto^[1]、篠原　久典　SHINOHARA Hisanori^[2]

^[1]名古屋大学大学院　工学研究科　Department of Applied Physics, Nagoya University、^[2]名古屋大学大学院　理学研究科　Department of Chemistry, Nagoya University

Abstract: The geometry of carbon cages(fullerenes) is governed by the isolated pentagon rule(IPR), which states that the most stable fullerenes are those in which all pentagons are surrounded by five hexagons. Although this rule has been verified experimentally, it is impossible for fullerenes in the range C₆₀ to C₇₀ to obey it. Here we describe the structure determination of the IPR-violating metallofullerene, Sc₂@C₆₆, a C₆₆ fullerene encaging a scandium dimmer, by the synchrotron radiation powder method using Large Debye-Scherrer Camera at BL02B2 in SPring-8. The results indicate that encapsulation of the metal dimmer significantly stabilizes this extremely unstable C₆₆ fullerene.

Pages 116 - 120 Download PDF (749.54 KB)

5. 研究会等報告／WORKSHOP AND COMMITTEE REPORT

第14回日本放射光学会年会・放射光科学合同シンポジウムの報告（その1）
Report of the Joint Symposium on the 14th Annual Meeting of Japan Synchrotron Radiation Society and Synchrotron Radiation Science (Part-1)

木村　真一　KIMURA Shin-ichi

神戸大学大学院　自然科学研究科　Graduate School of Science and Technology, Kobe University

Pages 121 - 122 Download PDF (13.43 KB)

第14回日本放射光学会年会・放射光科学合同シンポジウムの報告（その2）
Report of the Joint Symposium on the 14th Annual Meeting of Japan Synchrotron Radiation Society and Synchrotron Radiation Science (Part-2)

江場　宏美　EBA Hiromi

文部科学省（旧：科学技術庁）金属材料技術研究所　National Research Institute for Metals, Ministry of Education, Culture, Sports, Science and Technology

Pages 123 - 124 Download PDF (13.12 KB)

第14回日本放射光学会年会・放射光科学合同シンポジウムの報告（その3）
Report of the Joint Symposium on the 14th Annual Meeting of Japan Synchrotron Radiation Society and Synchrotron Radiation Science (Part-3)

鈴木　朝雄　SUZUKI Asao

仁木工芸㈱　輸入部　放射線計測機器グループ　Niki Glass Co, Ltd. Tokyo Office Group Leader for Nuclear Science

Pages 125 - 126 Download PDF (12.25 KB)

第4回放射光アジアフォーラムの報告
The 4th Asian Forum on Synchrotron Radiation

菊田　惺志　KIKUTA Seishi

（財）高輝度光科学研究センター　Japan Synchrotron Radiation Research Institute (JASRI)

Pages 127 - 128 Download PDF (100.90 KB)

第6回「加速器電源シンポジウム」報告
“The 6th Symposium on Accelerator’s Power Supply System” Report

武部　英樹　TAKEBE Hideki

（財）高輝度光科学研究センター　放射光研究所　加速器部門　JASRI Accelerator Division

Abstract: The sixth symposium on accelerator's power supply system was held on 15th and 16th November 2000 at SPring-8 PR-Center conference room. More than 70 people attended. Many presentations and discussions about, for example, IGBT switching mode power supply for magnets, noise reduction technics, high precision current control technics of accelerators, and so on, have done. Before this symposium, an investigative tour for Hyogo Ion Beam Medical Center, NewSUBARU facility, and SPring-8 facility was held. Announces and registrations for this symposium have been done using only an e-mail and www home page on the Internet.

Pages 129 - 131 Download PDF (238.04 KB)