24P120-R
Catalog Database of Yukawa-Tomonaga-Sakata Memorial Archives
湯川・朝永・坂田記念史料のカタログ・データベース
Yoshinobu Takaiwa1 , Haruyoshi Gotoh2 , Michiji Konuma3 , Kenji Ito4 , Chusei Namba5 ,Taichi Kugo6 , Sho Tanaka7 , Masako Bando8 , Kazuyuki Ito9 ,Kazuyuki Kanaya10 , Fumihiko Ukegagawa10 , Masaharu Tanabashi11 ,Koichi Yamawaki11 , Tadashi Yoshikawa12 , Tadash Nishitani13
高岩義信 1 , 五島敏芳 2 , 小沼通二 3 , 伊藤憲二 4 , 難波忠清 5 , 九後太一 6 , 田中正 7 , 坂東昌子 8 ,伊藤和行 9 、金谷和至 10 , 受川史彦 10 , 棚橋誠治 11 , 山脇幸一 11 , 吉川直志 12 , 西谷正 13
1 Tsukuba U. Tech.，2 Kyoto U.(Museum)，3 Kanagawa Dental Coll.，4 Sokendai，5 NIFS，
6 Kyoto U.(YITP)、7 Kyoto U.，8 Aichi U.，9 Kyoto U.(History),
10 U. Tsukuba (Phys.)、11 Nagoya U.(KMI)，12 Nagoya Women’s U.，13 Kikuchi Coll. Optometry
1 筑波技術大，2 京大総合博物館，3 神奈川歯科大，4 総研大，5 核融合研，6 京大基研、7 京大，
8 愛知大，9 京大文，10 筑波大物理、11 名大 KMI，12 名古屋女子大，13 キクチ眼鏡専門学校

Yukawa, Tomonaga, and Sakata memorial archives are explained, and the status of the project ofa Grants-in-Aids for Scientific Research (Kakenhi) performed by the authors in which the studyof those archival libraries and making of their databases is given. Considering the important roles
they played in early days of nuclear physics research in Japan and some administrative works
for academic societies under the framework of Japan Science Council and also some goverment
committes, they may contain important and interesting documents related to the emergence offusion research in Japan.

1. Introduction
Some historical documents left by Hideki
Yukawa, Sin-itiro Tomonaga, and Shoichi Sakata
have been preserved and archived at Yukawa
Hall Archival Library (YHAL), YITP, Kyoto
Univ.[1], Tomonaga Memorial Room (TMR),
Univ. of Tsukuba[2], and Sakata Memorial Archival Library (SMAL), Physics Dept.,
Nagoya Univ.[3], respectively, which are collectively refered as memorial archives in this paper
hereafter. These three great physicists worked
on very similar fields in physics, namely, theoretical nuclear and particle physics, and also
shared social relations in their academic environment, and therefore it is expected that studying
their archival materials in a unified manner may
give abundant information in many aspects thandoing individually. In this context, a grants-inaid for scientific research (Kakenhi) was awarded
for three years from April 2008 to the project ofstudying the archival documents and making thedatabases of their descriptive data (finding-aids)
which were planned to be made public on completion of the project. In this paper, the statusof the project is reported, and some interesting
information about the early stage activities offusion science research in Japan in which thesethree physicists might played key roles.
2. Memorial Archives
This section describes summary of eachmemorial archives: historical description, quan-tities, and some contents of the documents.
All of them started to preserve documents
after Japan-US Collaborative workshops heldin 1978-1979, by a stimulating suggestion byL. M. Brown noticing importantce of the activities on particle physics pioneers of Japan in
the context of science history of particle physics.
The discussion made there will be found in theproceedings[4].
2.1 Yukawa — YHAL
Yukawa’s archives started by looking for documenst of his activities. In addition to the materials left in his oﬃce at Yukawa Hall, large
amount of documents were found at Physics Department building of Scinece Faculty where hekept old documents well back to 1930’s including drafts memos and letters from Tomonaga
on his famous work on the source of nuclear
force, mesotron (π meson). The catalog list of
the documents was prepared and published byR.Kawabe but in 2000 the middle of the work
he passed away. After this catalogging work has
been stopped. Originally Kawabe’s catalog waspublished as a series of articles in “SoryushironKenkyu 「素粒子論研究」”, and they are bundled
in one volume now and available online[5].
2.2 Tomonaga — TMR
Tomonaga Memorial Archives was foundedby donnation from Tomonaga’s family after hisdeath. The University of Tsukuba started tosetup a memorial room dedicated to his achieve-ment in physics and his career as the former
President of its setup a memorial room dedicated to his achievement in physics and his career as the former President of its predecessor
university. By S.Kamefuch and others prepared
the room for exhibition of Tomonaga’s historical documents. After a while, some other documents were added by donnation of some persons
closely related to Tomonaga. The documents
were maintained only with a simple list for internal use, and it has been thought desirable tohave a database of documents for long time.
2.3 Sakata — SMAL
Sakata deceased while he was still a professorof Nagoya University. It was planned to publish
a collection of his work and some documents of
his work had been collected and kept in his office. After this the physics department decided
to preserve his oﬃce and the collected documentswere left untouched and in commemoration of
his contribution to physics and the departmentof physics, which means that the oﬃce functions
as an archives of the department to include not
only Sakata’s documents but also other physicists of the department. S.Ogawa contributed tomake catalog list of the documents in two volumes and then he deceased leaving some partsof the documents unlisted.
3. Database
These are the situations of the memorialarchives when the Kakenhi project started. The
project started to look at listed and unlisted documents, and converting into databases with similar format and structure. To add unlisted documents into database, considering hierarchy structure inherent to the archival materials, the description started from higer hierarchy level, collections, down to lower ones, boxes, files (folders), and items. By this principle, overview of
the archival doccuments can be understood firstand detailed information may be added later, iftime and resource are available. And the situation when the Kakenhi project finished has beensummarized in a booklet[6].
The database was made using commercial
software Filemaker Pro with the structure (fielddefinitions) conforming with international standards of archival description, such as ISAD(G) ofICA[7] and, if it must be converted it to online
capable form, with EAD[8].
4. Internet Server
For the internet server a candidate is now under serious investigation with free open-software.
It will be soon available for public access[9].
When it is convinced that the server with thissystem works fine as expected, it may be possible
to add more database contents of other archives
with similar database forms.

5. Historical Documents of Fusion Research in Japan
It is known that some people started thefusion research at Yukawa Institute, and also
Yukawa was a committee member for Fusion Research of Japan Science Council. There foundsome meeting minutes of such committes in theYukawa memorial archives. Also, Sakata was disucussing about nuclear power development andonce participated a kind of such committes. It
is known that he criticized that enough information were not given to those committees, and it
made him quit as a committee member.
Details and background information of suchstory may be found if the related documnets arelooked for in these memorial archives and thesearch is done in not a single but many archives,
some unknown contexts and facts may be revealed.

References[1] http://www.yukawa.kyoto-u.ac.jp/···

contents/about us/yukawa/[2] http://tomonaga.tsukuba.ac.jp[3] http://www.eken.phys.nagoya-u.ac.jp/···

introduction/sakata/sakata-j.html/[4] Ed. L.M.Brown, K.Rokuo, M.Konuma, Z.Maki,
Prog. Theor. Phys. Supplement, 105 (1991).

[5] “YHAL Resources Hideki Yukawa (I)-(VIII),http://www.yukawa.kyoto-u.ac.jp/
PDF/YTarchiveR070508.pdf···[6] K.Kanaya and Y.Takaiwa, “Archival Documents Left by Yukawa, Tomonaga, and Sakata ,Tsukuba University of Tecchnology, 2011.
http://arcadia.k.tsukuba-tech.ac.jp/···
yts-memorial-archives/[7] http://www.icacds.org.uk/eng/ISAD(G).pdf[8] http://www.loc.gov/ead/[9] http://yhal.yukawa.kyoto-u.ac.jp/archon/(in preparation)