UVSOR
ACTIVITY REPORT
2003

edited byA. Mochihashi, H. Hagiwara, T. ItoPreface
On December 2, 2003, we celebrated the twentieth anniversary of the UVSOR facility.
It is a great pleasure to publish this new series of the UVSOR Activity Report at the beginningof the third decade from the first light observation in November 10, 1983. This volume
describes the research activities at the UVSOR facility in the Institute for Molecular Science(IMS) in FY2003. This is also the first report by use of the UVSOR-II ring with eight straightsections, which was upgraded in the spring of 2003. We hope we will be able to have a daily
operational mode at the minimum emittance around 27 nmrad from the UVSOR-II ring after
the replacement of the main RF cavity in the winter of 2004.
In April 2004, our organization has been changed. The Okazaki National ResearchInstitutes involving IMS, NIBB (National Institute for Basic Biology), and NIPS (NationalInstitute for Physiological Sciences) were disorganized in March. IMS now belongs to a neworganization, National Institutes of Natural Sciences (NINS) together with NAO (NationalAstronomical Observatory) and NIFS (National Institute for Fusion Science) in additional toNIBB and NIPS. Director General of IMS is now Prof. Hiroki Nakamura. According to amaster plan of the IMS organization, we have started to strengthen the organization of theUVSOR facility. We have gotten a new position of full professor of the accelerator division.
Assoc. Prof. Dr. Masahiro Katoh was promoted to this professor in January 2004. In October
2003, Dr. Yasumasa Hikosaka joined the photochemistry division as research associate fromPhoton Factory.
We lost an excellent technical associate, Mr. Osamu Matsudo at the age of 53, onDecember 26, 2003 after long medical treatment. His first job here was the design work for
proposal of the UVSOR facility and he had been a walking dictionary about the UVSOR
facility. I would like to pay my deepest and last respects to him together with all of theUVSOR users and staff members since 1980.
May, 2004

Nobuhiro Kosugi
Director of UVSORi

Memories ofMr. Osamu Matsudo (1950-2003)(Center) Mr. Osamu Matsudo, UVSOR chief engineer, with (right) Mr. Eiken Nakamura, unit
chief engineer at BL8A in the UVSOR facility.
Mr. Osamu Matsudo was one of the pioneers of the UVSOR facility. As soon as he arrived
at his position in the Institute for Molecular Science in 1980, he started to work forconstruction of the UVSOR facility. After the UVSOR was born, he devoted himself toupgrade and develop various kind of experimental systems, and moreover, he always worked
with his devotion to support of user’s experiments and maintainance of equipment for theexperimental instrumentation. ‘If you have troubled, call Matsudo-san’ - most of the UVSOR
users have been supported by his appropriate advice, tolerance and smile.
Not only he was a very skillful technician but also good at drawing. He often selected
beautiful nature and flowers as a motif of his drawings. Now we can see his fruitfulimagination not only in his impressive drawings but also in all of the experimental
instrumentation that he designed and made.
We all miss his smile, open-minded attitude and pioneering spirit.

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