Isotope Separation by Microchip

• Project/Area Number: 23561013
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Nuclear engineering
• Research Institution: Osaka Sangyo University (2012-2016); Hiroshima University (2011)
• Principal Investigator: Hazama Ryuta 大阪産業大学, 人間環境学部, 准教授 (00379299)
• Co-Investigator(Kenkyū-buntansha): 佐久間 洋一 東京工業大学, 原子炉工学研究所, 研究員 (30133119)
• Co-Investigator(Renkei-kenkyūsha): OGATA YOSHIMUNE 名古屋大学, アイソトープ総合センター分館, 准教授 (70185502) ; TOKESHI MANABU 北海道大学, 大学院工学研究院, 教授 (60311437) ; MIYAKE RYO 東京大学, 大学院工学系研究科, 教授 (50417052)
• Project Period (FY): 2011-04-28 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000); Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2011: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
• Keywords: 実験核物理 / 化学工学 / 同位体分離 / マイクロ・ナノデバイス / 素粒子実験

Outline of Final Research Achievements

We proved that liquid-liquid extraction (LLE) with crown-ether which was awarded a Nobel prize in 1987, can be utilized not only for ion separation, but also for isotope separation. Previously it was found that multistage process of back extraction will be impractical, due to its Ca concentration reduction with the order of 6 after LLE's iteration of 4, even though the largest enrichment of 8 % was obtained at LLE's iteration of 3. Thus, we developed that the new procedure that a valuable crown-ether organic solution can be recycled by using just a water and its Ca concentration can be maintained/kept with just a 20-30 % reduction, simultaneously. This trade-off relation between Ca concentration (partition coefficient) and separation factor was verified and its separation factor of this new method was found to be 1.0010±0.0003 (about 1/10 compared with the back extraction) and we cleared these two obstacles (Ca concentration and separation factor)for a multistage process.

Research Products

• [Journal Article] The CANDLES experiment for the study of Ca-48 double beta decay (2016)
  • Author(s): Takashi Iida et al.
  • Journal Title: Nuclear and Particle Physics Proceedings Volume: 未定 Pages: 2633-2635
  • DOI: 10.1016/j.nuclphysbps.2015.10.013
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Status and future prospect of 48Ca double beta decay search in CANDLES (2016)
  • Author(s): T Iida, K Nakajima, S Ajimura, T Batpurev, W M Chan, K Fushimi, R Hazama, H Kakubata, B T Khai, T Kishimoto, X Li, T Maeda, A Masuda, K Matsuoka, K Morishita, N Nakatani, M Nomachi, S Noshiro, I Ogawa, T Ohata, H Osumi, K Suzuki, Y Tamagawa, K Tesuno, V T T Trang, T Uehara, S Umehara and S Yoshida
  • Journal Title: Journal of Physics: Conference Series Volume: 718 Pages: 062026-062026
  • DOI: 10.1088/1742-6596/718/6/062026
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Study of Isotope Separation of Strontium and Calcium via Chemical Exchange Reaction (2016)
  • Author(s): R. Hazama, Y. Sakuma, T. Yoshimoto, T. Fujii, T. Fukutani, Y. Shibahara
  • Journal Title: KURRI Progress Report 2015(April 2015 - March 2016) Volume: 2015 Pages: 31-31
  • Open Access
• [Journal Article] ストロンチウム及びカルシウムの化学交換法における同位体分別研究II (2016)
  • Author(s): 硲隆太、佐久間洋一、伊藤彩、藤井俊行、福谷哲、芝原雄司
  • Journal Title: 京都大学原子炉実験所「第５０回学術講演会報文集」 Volume: KURRI-KR-207 Pages: 53-53
  • Open Access
• [Journal Article] マイクロチップによる同位体分離 (2016)
  • Author(s): 硲隆太、濱崎竜英、佐久間洋一
  • Journal Title: 大阪産業大学産業研究所所報 Volume: 39 Pages: 37-41
  • NAID: 130007036638
  • Open Access
• [Journal Article] Search for Neutrino-less Double Beta Decay of 48Ca (2015)
  • Author(s): S. Umehara他
  • Journal Title: Physics Procedia,61(2015) 283-288. Volume: 61 Pages: 238-288
  • DOI: 10.1016/j.phpro.2014.12.046
  • Peer Reviewed / Open Access
• [Journal Article] Study of Isotope Separation of Strontium and Calcium via Chemical Exchange Reaction (2015)
  • Author(s): R. Hazama, Y. Sakuma, A. Ito, T. Fujii, T. Fukutani, Y. Shibahara
  • Journal Title: KURRI Progress Report 2014(April 2014 - March 2015) Volume: 2014 Pages: 61-61
  • Open Access
• [Journal Article] ストロンチウム及びカルシウムの化学交換法における同位体分別研究 (2015)
  • Author(s): 硲隆太, 佐久間洋一, 伊藤彩, 藤井俊行, 福谷哲, 芝原雄司
  • Journal Title: 京都大学原子炉実験所「第49回学術講演会報文集」 Volume: KURRI-KR-200 Pages: 25-25
  • Open Access
• [Journal Article] マイクロチップによる同位体分離 (2015)
  • Author(s): 硲隆太、濱崎竜英、佐久間洋一
  • Journal Title: 大阪産業大学産業研究所所報 Volume: 38 Pages: 38-42
  • NAID: 130007036638
  • Open Access
• [Journal Article] Search for neutrino-less double beta decay of 48Ca (2014)
  • Author(s): S.Umehara,T.Kishimoto,M.Nomachi,S.Ajimura,N.Nakatani,K.Matsuoka,K.Ichimura,M.Saka,T.Ishikawa,D.Tanaka,M.Tanaka,S.Yoshida,K.Suzuki,G.Ito,H.Kakubata,W.Wang,J.Takemoto,W.M.Chan,M.Doihara,Y.Tamagawa,I.Ogawa,T.Ueno,S.Maeda,A.Yamamoto,S.Tomita,G.Fujita,A.Kawamura,T.Harada,K.Fushimi,R.Hazama,H.Ohsumi,K.Okada
  • Journal Title: EPJ Web of Conferences Volume: 66 Pages: 08008-08008
  • DOI: 10.1051/epjconf/20146608008
  • Peer Reviewed / Open Access
• [Journal Article] Isotope Separation by Microreactor (2014)
  • Author(s): R. Hazama, Y. Sakuma, A. Ito, T. Fujii, T. Fukutani, Y. Shibahara
  • Journal Title: KURRI Progress Report 2013 Volume: 2013 Pages: 84-84
  • NAID: 40022141810
• [Journal Article] クラウンエーテルによる同位体分離 (2014)
  • Author(s): 硲隆太、伊藤彩、佐久間洋一、藤井俊行、福谷哲、芝原雄司
  • Journal Title: 京都大学原子炉実験所 第４８回学術講演会報文集 Volume: KURRI-KR-193 Pages: 165-167
  • Open Access / Acknowledgement Compliant
• [Journal Article] Background reduction using single- photoelectron counting for WIMP search (2013)
  • Author(s): I. Ogawa
  • Journal Title: Nucl. Instr. and Meth. A Volume: 705 Pages: 1-6
  • DOI: 10.1016/j.nima.2012.12.083
  • Peer Reviewed
• [Journal Article] Study of Ca-48 double beta decay by CANDLES CANDLES Collaboration (2012)
  • Author(s): I. Ogawa (Fukui U.), T. Kishimoto (Osaka U. & Osaka U., Res. Ctr. Nucl. Phys.) , S. Umehara (Osaka U., Res. Ctr. Nucl. Phys.) , G. Ito, K. Yasuda, H. Kakubata, M. Miyashita, K. Takubo, K. Matsuoka, M. Nomachi, M. Saka, K. Seki (Osaka U.) , K. Fushimi (Tok
  • Journal Title: J.Phys.Conf.Ser. Volume: 375 Issue: 4 Pages: 42018-42018
  • DOI: 10.1088/1742-6596/375/1/042018
  • Peer Reviewed
• [Journal Article] Study of 48Ca double beta decay by CANDLES (2012)
  • Author(s): I Ogawa, T Kishimoto, S Umehara, G Ito, K Yasuda, H Kakubata, M Miyashita, K Takubo, K Matsuoka, M Nomachi, M Saka, K Seki, K Fushimi, R Hazama, et al.
  • Journal Title: Journal of Physics: Conference Series Volume: 375
• [Journal Article] Search for neutrino-less double beta decay with CANDLES (2012)
  • Author(s): S. Umehara
  • Journal Title: AIP Conf. Proc. Volume: 1441 Pages: 448-450
  • DOI: 10.1063/1.3700581
  • Peer Reviewed
• [Journal Article] Neutrino-less double beta decay of (48)Ca -CANDLES (2011)
  • Author(s): T. Kishimoto , S. Yoshida, K. Matsuoka, K. Ichimura, G. Ito, K. Yasuda, H. Kakubata, M. Miyashita, K. Takubo, M. Nomachi, M. Saka, K. Seki, S. Ajimura, S. Umehara, N. Nakatani, Y. Tamagawa, I. Ogawa, R. Hazama, H. Ohsumi, K. Okada, Y. Fujii
  • Journal Title: AIP Conf.Proc Volume: 1338 Pages: 142-148
  • DOI: 10.1063/1.3647363
  • Peer Reviewed
• [Journal Article] Study of ^<48>Ca double beta decay by CANDLES CANDLES Collaboration (2011)
  • Author(s): I.Ogawa, T.Kishimoto, et al
  • Journal Title: Phys.Conf.Ser. Volume: 312 Issue: 7 Pages: 72014-72014
  • DOI: 10.1088/1742-6596/312/7/072014
  • Peer Reviewed
• [Presentation] ストロンチウム及びカルシウムの化学交換法における同位体分別研究 III (2017)
  • Author(s): 硲 隆太、義本孝明、佐久間洋一、藤井俊行、福谷哲、芝原雄司
  • Organizer: 京都大学原子炉実験所「第５１回学術講演会」
  • Place of Presentation: 京都大学原子炉実験所, 大阪
  • Year and Date: 2017-01-26
• [Presentation] ストロンチウム及びカルシウムの化学交換法における同位体分別研究 II (2016)
  • Author(s): 硲隆太、伊藤彩、佐久間洋一、藤井俊行、福谷哲、芝原雄司
  • Organizer: 京都大学原子炉実験所「第５０回学術講演会」
  • Place of Presentation: 京都大学原子炉実験所、大阪
  • Year and Date: 2016-01-27
• [Presentation] ストロンチウム及びカルシウムの化学交換法における同位体分別研究 (2015)
  • Author(s): 硲隆太、伊藤彩、佐久間洋一、藤井俊行、福谷哲、芝原雄司
  • Organizer: 京都大学原子炉実験所 第４９回学術講演会
  • Place of Presentation: 京都大学原子炉実験所
  • Year and Date: 2015-01-28 – 2015-01-29
• [Presentation] Overview of detector technologies in low-radioactivity background experiments (2014)
  • Author(s): Ryuta Hazama
  • Organizer: The 4th joint meeting of the Nuclear Physics Divisions of APS and JPS (Hawaii2014)
  • Place of Presentation: Hilton Waikoloa Village, Hawaii, USA
  • Year and Date: 2014-10-07 – 2014-10-11
  • Invited
• [Presentation] クラウンエーテルによる同位体分離 (2014)
  • Author(s): 硲 隆太、伊藤 彩、佐久間洋一, 藤井俊行, 福谷 哲, 芝原雄司
  • Organizer: 京都大学原子炉実験所第48回学術講演会
  • Place of Presentation: 京都大学原子炉実験所
• [Presentation] Enrichment Review (Enrichment of 48Ca) (2013)
  • Author(s): 硲 隆太
  • Organizer: 第１回極低バックグラウンド素粒子原子核研究懇談会
  • Place of Presentation: 富山県富山市「富山商工会議所」
  • Invited
• [Presentation] マイクロリアクターによる同位体分離 (2013)
  • Author(s): 硲 隆太
  • Organizer: 京都大学原子炉実験所第４７回学術講演会
  • Place of Presentation: 京都大学原子炉実験所
• [Presentation] 48Ca濃縮と二重ベータ崩壊 (2012)
  • Author(s): 硲 隆太
  • Organizer: 第1回放射線教育フォーラム 愛知・岐阜・三重地区勉強会(招待講演)
  • Place of Presentation: 名古屋大学医学部保健学科
• [Book] 二重ベータ崩壊と同位体分離 (2012)
  • Author(s): 硲隆太、佐久間洋一、緒方良至、渡慶次学、三宅亮、秋田誠広
  • Total Pages: 1
  • Publisher: 第９回同位体科学研究会要旨
• [Book] 48Ca濃縮と二重β崩壊実験 (2012)
  • Author(s): 硲隆太、佐久間洋一、緒方良至
  • Total Pages: 1
  • Publisher: 第１回放射線教育フォーラム愛知・岐阜・三重地区勉強会要旨集
• [Book] クラウンエーテルによる同位体分離-濃縮48Caによる二重ベータ崩壊実験- (2011)
  • Author(s): 硲 隆太
  • Total Pages: 109
  • Publisher: 広島大学自然科学研究支援開発センター年報
• [Remarks] CANDLES 宇宙 物質の起源を探る二重ベータ崩壊
  • URL: http://www.rcnp.osaka-u.ac.jp/candles/
• [Remarks] 宇宙の歴史をひもとく地下素粒子原子核研究
  • URL: http://www.lowbg.org/ugnd/
• [Remarks] CANDLES 宇宙 物質の起源を探る二重ベータ崩壊
  • URL: http://www.rcnp.osaka-u.ac.jp/~candles
• [Remarks] CANDLES装置を用いた二重ベータ崩壊の研究
  • URL: http://www.rcnp.osaka-u.ac.jp/candles/
• [Remarks] CANDLES装置を用いた二重ベータ崩壊の研究
  • URL: http://www.rcnp.osaka-u.ac.jp/~umehara/Public/index.html