CaMoO4 scintillation crystal for the search of100Mo double beta decay N7-7

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

Research output: Contribution to journalConference article

Abstract

Scintillation properties of calcium molybdate are investigated. Emission spectrum is broad with a maximum at 520 nm, at room temperature light yield is 400 photoelectrons/MeV, decay time is 17 μs, at cooling light yield and decay time increase. Prospects of optimization of this scintillator are discussed. Feasibility of the material for the search of neutrinoless double beta decay of 100Mo is analyzed. Half life limit of T1/2 = 1.10 25 years (68% CL) seems feasible with CaMoO4 scintillator, containing 10 kg of 100Mo after 5 year of measurements. The problem of background due to two neutrino double beta decay of 48Ca is considered. Request for new scintillators for double beta decay search is formulated.

Original languageEnglish
Pages (from-to)133-137
Number of pages5
JournalIEEE Nuclear Science Symposium Conference Record
Volume1
Publication statusPublished - 2004
Event2004 Nuclear Science Symposium, Medical Imaging Conference, Symposium on Nuclear Power Systems and the 14th International Workshop on Room Temperature Semiconductor X- and Gamma- Ray Detectors - Rome, Italy
Duration: 2004 Oct 162004 Oct 22

All Science Journal Classification (ASJC) codes

  • Radiation
  • Nuclear and High Energy Physics
  • Radiology Nuclear Medicine and imaging

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    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., ... Zhu, J. J. (2004). CaMoO4 scintillation crystal for the search of100Mo double beta decay N7-7. IEEE Nuclear Science Symposium Conference Record, 1, 133-137.