Preface
This issue of Research Report of Laboratory of Nuclear Science reports research activities of theLNS performed in the 2004 academic/ﬁscal year (April 2004, March 2005). Major research activities are
based on the electron accelerator complex consisting of the 300-MeV LINAC and the 1.2-GeV STB ring.
The accelerators have altogether provided a beam time of about 3,300 hours for various experiments
through the year.
In this year, ( γ, K0) measurements with the NKS spectrometer ﬁnished at the experimental hall 2,
where a construction of a larger spectrometer called New NKS spectrometer has been planned. A seriesof ( γ, η ) experiments have been performed with SCISSORS at the GeV γ-ray experimental hall using
a new tagging photon system. The measurements on (e, e'p) reactions have also been performed at theexperimental hall 2 by using a 200-MeV stretched beam extracted from the STB ring. Experiments oncoherent radiation were performed by using pulsed electron beams from the LINAC. Various radioactive
isotopes were produced by using high intensity beams below 50 MeV at the experimental hall 1. They
were served for element analyses as well as for detailed study of decay properties.
We hope that this Report will serve as a quick overview of the present LNS activities over a varietyof nuclear research ﬁelds.

Jirohta KASAGIDirector

Research Report of Laboratory of Nuclear Science
Volume 38, 2005
Contents
Ⅰ．Nuclear Physics
Ⅰ－１

Photoproduction of Neutral Kaons on Liquid Deuterium Target

1

Kyou Tsukada, Toshiyuki Takahashi, Takaomi Watanabe, P. Bydvžovský,Mitsuhiko Ejima, Yuu Fujii, Kenta Futatsukawa, Osamu Hashimoto,
Kentarou Hirose, Takatsugu Ishikawa, Satoru Kameoka, Hiroki Kanda,
Fumiaki Kato, Sari Kinoshita, Tadashi Kinoshita, Takeshi Kon, Osamu Konno,
Kazushige Maeda, Akihiko Matsumura, Yuusuke Miura, Fusashi Miyahara,Haruhisa Miyase, Tadashi Nakabayashi, Kenichi Nonaka, Atsushi Ohtani,
Yuichi Okayasu, Masamichi Oyamada, Atsushi Sasaki, Hajime Shimizu,
Tadaaki Tamae, Hirokazu Tamura, Tatsuo Terasawa, Hiroaki Tsubota,
Satoshi N. Nakamura, Hiroshi Nomura, Mifuyu Ukai, Daisuke Uchida,Hirokazu Yamauchi, Hirohito Yamazaki, Keisuke Yawata, and Masaki Wakamatsu
Ⅰ－２

Photoproduction of η-mesons off C and Cu Nuclei for Photon Energies below 1.1GeV

8Tadashi Kinoshita, Hirohito Yamazaki, Hiroshi Fukasawa, Katsuya Hirota,
Takatsugu Ishikawa, Jirohta Kasagi, Atsushi Kato, Tomoyoshi Katsuyama,
Koichi Kino, Tadashi Nakabayashi, Kenichi Nawa, Kenyu Okamura, Yutaka Saitoh,Katsunori Satou, Mitsuhiro Sengoku, Koutaku Suzuki, Shinya Suzuki,
Tatsuo Terasawa, Hiroki Kanda, Kazushige Maeda, Toshiyuki Takahashi,Yuichi Aruga, Hiroki Fujinoya, Akiko Iijima, Michitaka Itaya, Yusuke Ito,
Takahiro Iwata, Hiroshi Kato, Tomoyuki Kawamura, Takuma Michigami,
Masateru Moriya, Takahiro Sasaki, Yasuhisa Tajima, Sayuri Takita,
Tomohiro Noma, Masakazu Yamamoto, Hiroshi Yoshida, Yuuki Yoshida,
Osamu Konno, Tomoyuki Maruyama, and Tetsuhiko Yorita
Ⅰ－３

Comparison of the 40Ca(e, e'p) Cross Section at Low Momentum Transfer Region
with Relativistic Calculations

18

Ryo Hashimoto, Tadaaki Tamae, Takeji Fujibayashi, Osamu Hashimoto,
Kentaro Hirose, Takatsugu Ishikawa, Hiroki Kanda, Osamu Konno,
Kazushige Maeda, Haruhisa Miyase, Satoshi N. Nakamura, Masashi Nanao,
Itaru Nishikawa, Tsutomu Otsuki, Teijiro Saito, Yoshiyuki Sato,
Kazunori Takahashi, Hirokazu Tamura, Hiroaki Tsubota, Masaki Wakamatsu,
Hirohito Yamazaki, and Hiroyuki Yuki
Ⅰ－４

Test Operation of Spin-Filter Polarimeter for Deuteron
Itaru Nishikawa, Masayoshi Watabe, and Tadaaki Tamae

22

Ⅱ．RadiochemistryⅡ－１

Observation of α-decay of 229mTh Produced from 229Ac

25

Hidetoshi Kikunaga, Yoshitaka Kasamatsu, Koichi Takamiya,Toshiaki Mitsugashira, Mitsuo Hara, Tsutomu Ohtsuki, Hideyuki Yuki,Atsushi Shinohara, Seiichi Shibata, Norikazu Kinoshita, AkihikoYokoyama, and Takashi Nakanishi
Ⅱ－２

Search for the Decay of 229mTh by Photon Detection

35

Yoshitaka Kasamatsu, Hidetoshi Kikunaga, Keiji Nakashima,
Koichi Takamiya, Toshiaki Mitsugashira, Takashi Nakanishi, Tsutomu Ohtsuki,Hideyuki Yuki, Wataru Sato, and Atsushi Shinohara
Ⅱ－３

Life-time Measurement of 7Be in Beryllium Metal

36

Tsutomu Ohtsuki, Hideyuki Yuki, Masakatsu Muto, Jirohta Kasagi, and Kaoru Ohno
Ⅱ－４

Photon Activation Analysis of Impurities in KTa1-xNbxO3 Single Crystals

42Kohji Shikano, Tsutomu Ohtsuki, Hideyuki Yuki, Kazuo Fujiura, and Masahiro Sasaura
Ⅱ－５

Distribution of 59Fe, 60Co and 85Sr as Low-level Radioactive Wastes Included in
Nonﬂammable Organic Materials in the Decomposition by Supercritical Waterwith RuO248

Tomoo Yamamura, Isamu Satoh, Wataru Sugiyama, Mitsuyuki Takahashi,
Yoshinobu Shiokawa, Hiroshi Tomiyasu, and Tsutomu Ohtsuki

Ⅲ．List of Publication
55Ⅳ．Approved Experiments
Ⅳ－１Former Term in 2004

57

Ⅳ－２

Latter Term in 2004

58

核理研研究報告 第38巻 目 次
Ⅰ．原子核物理
Ⅰ－１

Photoproduction of Neutral Kaons on Liquid Deuterium Target

1

塚田暁，高橋俊行，渡辺崇臣，P. Bydvžovský，江島光彦，藤井橋本治，広瀬健太郎，石川貴嗣，亀岡

木下忠，近中林匡，野中健一，大谷岳志，今野優，二ツ川健太，覚，神田浩樹，加藤文章，木下沙理，

收，前田和茂，松村彰彦，三浦勇介，宮原房史，宮瀬晴久，篤，岡安雄一，小山田正学，佐々木厚，清水田村裕和，寺沢辰生．坪田博明，中村哲，野村肇，玉江忠明，洋，鵜飼美冬，内田大介，山内大和，山崎寛仁，八幡啓介，若松正樹
Ⅰ－２

Photoproduction of η-mesons off C and Cu nuclei for photon energies below
1.1GeV木下

8忠，山崎寛仁，深澤宏司，広田克也，石川貴嗣，笠木治郎太，加藤篤志，勝山知義，木野幸一，中林匡，繩

健一，岡村憲有，齋藤雄高，佐藤勝則，千石光洋，鈴木耕拓，鈴木伸哉，寺沢辰生．神田浩樹，前田和茂，高橋俊行，有賀雄一，藤野屋大樹，飯島晶子，板谷道隆，伊藤祐輔，岩田高広，加藤宏，

川村知行，道上琢磨，守屋昌輝，佐々木隆浩，田島靖久，瀧田さゆり，乃万智洋，山本正和，吉田浩司，吉田祐樹，今野
Ⅰ－３

收，丸山智幸，依田哲彦

Comparison of the 40Ca(e, e'p) Cross Section at Low Momentum Transfer Region
with Relativistic Calculations

18

橋本亮，玉江忠明，藤林丈司，橋本治，広瀬健太郎，石川貴嗣，神田浩樹，今野收，前田和茂，宮瀬晴久，中村哲，七尾晶士，西川 至，大槻勤，

斉藤悌二郎，佐藤祥幸，高橋一憲，田村裕和，坪田博明，若松正樹，山崎寛仁，結城秀行
Ⅰ－４

Test Operation of Spin-Filter Polarimeter for Deuteron
西川22至，渡部政義，玉江忠明

Ⅱ．放射化学
Ⅱ－１

Observation of α-decay of 229mTh Produced from 229Ac
菊永英寿，笠松良祟，高宮幸一，三頭聰明，原篠原

Ⅱ－２厚，柴田誠一，木下哲一，横山明彦，中西Search for the Decay of229m

光雄，大槻

Ⅱ－３

Th by Photon Detection

Ⅱ－４

渉，篠原

32
孝，大槻勤，厚Life-time Measurement of 7Be in Beryllium Metal
大槻勤，結城秀行，孝笠松良祟，菊永英寿，中島啓二，高宮幸一，三頭聰明，中西
結城秀行，佐藤25

36

勤，結城秀行，武藤正勝，笠木治郎太，大野かおる

光量子放射化分析法による KTa1-xNbxO3単結晶中の不純物分析
鹿野弘二，大槻勤，結城秀之，藤浦和夫，笹浦正弘

42Ⅱ－５Distribution of 59Fe, 60Co and 85Sr as Low-level Radioactive Wastes Included in
Nonﬂammable Organic Materials in the Decomposition by Supercritical Waterwith RuO2
山村朝雄，佐藤伊佐務，杉山48
亘，高橋三幸，塩川佳伸，冨安博，大槻勤

Ⅲ．論文リスト
55

Ⅳ．課題採択結果
Ⅳ－１

平成16年度前期

59

Ⅳ－２

平成16年度後期

60