Isotope Separation of 48Ca for Double Beta Decay Measurement

• Project/Area Number: 23684015
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Single-year Grants
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Osaka University
• Principal Investigator: UMEHARA Saori 大阪大学, 核物理研究センター, 特任助教 (10379282)
• Project Period (FY): 2011 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥28,730,000 (Direct Cost: ¥22,100,000、Indirect Cost: ¥6,630,000); Fiscal Year 2012: ¥17,030,000 (Direct Cost: ¥13,100,000、Indirect Cost: ¥3,930,000); Fiscal Year 2011: ¥11,700,000 (Direct Cost: ¥9,000,000、Indirect Cost: ¥2,700,000)
• Keywords: 同位体濃縮 / 二重ベータ崩壊 / カルシウム48 / カルシウム

Research Abstract

Among double beta decay nuclei,48Ca has an advantage for a double beta decaymeasurement. We have studied 48Ca enrichment with chemical isotope separation by using crown ether and obtained enriched 48Ca. We have also obtained the stable isotopic effect with the large scale system for 48Ca enrichment.

Research Products

• [Journal Article] Search for neutrino-less double beta decay by CANDLES (2013)
  • Author(s): S. Umehara, 他
  • Journal Title: AIP Conf. Proc. Volume: 1533 Pages: 115-120
  • Peer Reviewed
• [Journal Article] Background reduction using single-photoelectron counting for WIMP search (2013)
  • Author(s): I. Ogawa, S. Umehara
  • Journal Title: Nucl. Instrum. Meth. Volume: A705 Pages: 1-6
  • Peer Reviewed
• [Journal Article] Search for neutrino-less double beta decay with CANDLES (2012)
  • Author(s): S. Umehara, 他
  • Journal Title: AIP Conf. Proc Volume: 1441 Pages: 448-450
  • Peer Reviewed
• [Journal Article] Search for neutrino-less double beta decay with CANDLES (2012)
  • Author(s): S. Umehara, 他
  • Journal Title: J. Phys. Conf. Ser. Volume: 375 Pages: 42018-42018
  • Peer Reviewed
• [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] 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] Data Acquisition System of CANDLES Detector for Double Beta Decay Experiment" (2011)
  • Author(s): S. Umehara, 他
  • Journal Title: Conference Record(2011 IEEE Nuclear Science Symposium and Medical Imaging Conference)
• [Journal Article] Study of Ca-48 double beta decay by CANDLES (2011)
  • Author(s): I. Ogawa, S. Umehara, 他
  • Journal Title: J. Phys., Conf. Ser. Volume: 312 Pages: 72014-72014
• [Journal Article] Neutrino-less Double Beta Decay of 48Ca -CANDLES- (2011)
  • Author(s): T. Kishimoto, S. Umehara 他
  • Journal Title: AIP Conference Proceedings Volume: 1388 Pages: 142-142
• [Journal Article] Low radioactivity CaF2 scintillator crystals for CANDLES (2011)
  • Author(s): I. Ogawa, S. Umehara 他
  • Journal Title: AIP Conf. Proc Volume: 1338 Pages: 116-116
• [Journal Article] Data Acquisition System of CANDLES Detector for Double Beta Decay Experiment (2011)
  • Author(s): S.Umehara
  • Journal Title: Conference Record(2011 IEEE Nuclear Scienee Symposium and Medical Imaging Conference) Volume: (CD-ROM)
• [Presentation] CANDLES による二重ベータ崩壊の研究(75) -測定状況- (2013)
  • Author(s): 梅原さおり、 他 CANDLES collaborator
  • Organizer: 日本物理学会 第68回年次大会
  • Place of Presentation: 広島
  • Year and Date: 2013-03-29
• [Presentation] CANDLESによる二重ベータ崩壊の研究(75) -測定状況- (2013)
  • Author(s): 梅原さおり
  • Organizer: 日本物理学会第68回年次大会
  • Place of Presentation: 広島
• [Presentation] Search for neutrino-less double beta decay by CANDLES (2012)
  • Author(s): 梅原さおり、 他 CANDLES collaborator
  • Organizer: The 8th China-Japan Joint Nuclear Physics Symposium (CJJNPS2012)
  • Place of Presentation: 北京
  • Year and Date: 2012-10-18
• [Presentation] CANDLES による二重ベータ崩壊の研究(67) -測定状況- (2012)
  • Author(s): 梅原さおり、 他 CANDLES collaborator
  • Organizer: 日本物理学会 2012 年秋季大会
  • Place of Presentation: 京都
  • Year and Date: 2012-09-11
• [Presentation] CANDLES 実験のデータ収集システム (2012)
  • Author(s): 梅原さおり、他
  • Organizer: データ収集システム研究会
  • Place of Presentation: 茨木
  • Year and Date: 2012-01-29
• [Presentation] CANDLES実験のデータ収集システム (2012)
  • Author(s): 梅原さおり
  • Organizer: 次世代データ収集システム研究会
  • Place of Presentation: 大阪大学(招待講演)
  • Year and Date: 2012-01-28
• [Presentation] Search for neutrino-less double beta decay by CANDLES (2012)
  • Author(s): S. Umehara
  • Organizer: The 8th China-Japan Joint Nuclear Physics Symposium (CJJNPS2012)
  • Place of Presentation: Beijing, China
  • Invited
• [Presentation] CANDLESによる二重ベータ崩壊の研究(67) -測定状況- (2012)
  • Author(s): 梅原さおり
  • Organizer: 日本物理学会秋季大会
  • Place of Presentation: 京都
• [Presentation] CANDLES - Search for neutrino-less double beta decay of 48Ca - (2012)
  • Author(s): S. Umehara
  • Organizer: The XXV International Conference on Neutrino Physics and Astrophysics Neutrino 2012
  • Place of Presentation: Kyoto, Japan
• [Presentation] CANDLES for the study of Double Beta Decay of 48Ca" (2011)
  • Author(s): S. Umehara、 他
  • Organizer: The workshop on "Double Beta Decay and Neutrinos" (DBD11)
  • Place of Presentation: 大阪
  • Year and Date: 2011-11-16
• [Presentation] CANDLES for the study of Double Beta Decay of 48Ca (2011)
  • Author(s): S.Umehara
  • Organizer: International Workshop on "Double Beta Decay and Neutrinos"
  • Place of Presentation: Osaka(招待講演)
  • Year and Date: 2011-11-16
• [Presentation] Data Acquisition System of CANDLES Detector for Double Beta Decay Experiment (2011)
  • Author(s): S. Umehara、他
  • Organizer: IEEE Nuclear Science Symposium and Medical Imaging Conference
  • Place of Presentation: Valencia, Spain
  • Year and Date: 2011-10-27
• [Presentation] Data Acquisition System of CANDLES Detector for Double Beta Decay Experiment (2011)
  • Author(s): S.Umehara
  • Organizer: 2011 IEEE Nuclear Science Symposium and Medical Imaging Conference
  • Place of Presentation: Valencia, Spain
  • Year and Date: 2011-10-27
• [Presentation] CANDLES による二重ベータ崩壊の研究(54) -CANDLES 検出器の開発状況 (2011)
  • Author(s): 梅原さおり、他
  • Organizer: 日本物理学会 2011 年秋季大会
  • Place of Presentation: 弘前
  • Year and Date: 2011-09-19
• [Presentation] Search for Neutrino-less Double Beta Decay with CANDLES (2011)
  • Author(s): S. Umehara、他
  • Organizer: 19th Particles & Nuclei International Conference (PANIC11)
  • Place of Presentation: Cambridge, USA
  • Year and Date: 2011-07-28
• [Presentation] Search for Neutrino-less Double Beta Decay with CANDLES (2011)
  • Author(s): S.Umehara
  • Organizer: The 19th Particles and Nuclei International Conference (PANIC11)
  • Place of Presentation: Cambridge, Massachusetts, USA
  • Year and Date: 2011-07-28
• [Presentation] CANDLES - Search for neutrino-less double beta decay of 48Ca (2011)
  • Author(s): S. Umehara、 他 CANDLES collaborator
  • Organizer: The XXV International Conference on Neutrino Physics and Astrophysics (NEUTRINO 2012)
  • Place of Presentation: 京都
  • Year and Date: 2011-06-08
• [Presentation] CANDLESによる二重ベータ崩壊の研究(54)-CANDLES検出器の開発状況- (2011)
  • Author(s): 梅原さおり
  • Organizer: 日本物理学会2011年秋季大会
  • Place of Presentation: 弘前大学