• DocumentCode
    1139364
  • Title

    \\hbox {CaMoO}_{4} Scintillation Crystal for the Search of ^100\\hbox {Mo} Double Beta Decay

  • Author

    Belogurov, S. ; Kornoukhov, V. ; Annenkov, A. ; Borisevich, A. ; Fedorov, A. ; Korzhik, M. ; Ligoun, V. ; Missevitch, O. ; Kim, S.K. ; Kim, S.C. ; Kim, S.Y. ; Kwak, J.W. ; Lee, H.S. ; Lee, J. ; Myung, S.S. ; Lee, M.J. ; Kim, Y.D. ; Lee, J.Y. ; Lee, J.I. ;

  • Author_Institution
    Inst. for Theor. & Exp. Phys., Moscow, Russia
  • Volume
    52
  • Issue
    4
  • fYear
    2005
  • Firstpage
    1131
  • Lastpage
    1135
  • Abstract
    Scintillation properties of calcium molybdate are investigated. The emission spectrum is broad with a maximum at 520 nm. At room temperature the light yield is 4% of CsI(Tl) (400 photoelectrons/MeV) and the decay time is 17 \\mu\\hbox {s } . During cooling the light yield and decay time increase. Prospects of optimization of this scintillator are also discussed. The feasibility of the material for the search of neutrinoless double beta decay of ^100\\hbox {Mo} is analyzed. A half life limit of T_{1/2}= 1\\cdot 10^{25}~\\hbox {years} (68% CL) seems feasible with \\hbox {CaMoO}_{4} scintillator, running with 10 kg of ^100\\hbox {Mo} for 5 years. The background due to two neutrino double beta decay of ^48\\hbox {Ca} is also considered. Requirements for new scintillators for double beta decay search are formulated.
  • Keywords
    calcium compounds; double beta decay; nuclei with mass number 90 to 149; radioactive decay periods; scintillation; solid scintillation detectors; 17 mus; 293 to 298 K; 520 nm; 100Mo; CaMoO4; CaMoO4 scintillation crystal; CsI(Tl) photoelectrons; calcium molybdate; crystal growth; emission spectrum; neutrinoless double beta decay; neutrinos; room temperature; Calcium; Cooling; Electron emission; Elementary particles; Neutrino sources; Physics; Radioactive decay; Research initiatives; Scintillation counters; Temperature; Crystal growth; low background; molybdenum compounds; neutrinos; scintillation detectors;
  • fLanguage
    English
  • Journal_Title
    Nuclear Science, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9499
  • Type

    jour

  • DOI
    10.1109/TNS.2005.852678
  • Filename
    1495817
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1139364