AMoRE experiment: a search for neutrinoless double beta decay of 100Mo isotope with 40Ca100MoO4 cryogenic scintillation detector
AMoRE experiment: a search for neutrinoless double beta decay of 100Mo isotope with 40Ca100MoO4 cryogenic scintillation detector
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AMoRE实验：用40Ca100MoO4低温闪烁探测器寻找100Mo同位素的无中微子双β衰变
DOI：
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发表时间：
2012
期刊：
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通讯作者：
Y. Yuryev
中科院分区：
文献类型：
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作者：
H. Bhang;R. Boiko;D. Chernyak;J. Choi;S. Choi;F. Danevich;K. V. Éfendiev;C. Enss;A. Fleischmann;A. Gangapshev;L. Gastaldo;A. Gezhaev;Y. Hwang;H. Jiang;W. Kang;V. Kazalov;N. Khanbekov;H. J. Kim;K. Kim;S. Kim;S. Kim;Y. Kim;Y. Kim;V. Kobychev;V. Kornoukhov;V. Kuzminov;V. Mokina;H. Lee;J. I. Lee;J. M. Lee;K. B. Lee;M. Lee;M. K. Lee;S. Lee;J. Li;X. Li;S. Myung;A. Nikolaǐko;S. Olsen;S. Panasenko;H. Park;D. Poda;R. Podviyanuk;O. Polischuk;P. Polozov;S. Ratkevich;Y. Satou;J. So;K. Tanida;V. Tretyak;S. Yakimenko;Q. Yue;Y. Yuryev
AMoRE（先进的基于钼的稀有工艺实验）合作将使用钼酸钙晶体作为低温闪烁探测器来寻找 100Mo 同位素的无中微子 DBD。同时检测声子和光将用于抑制内部背景。使用 0.5 cm3 晶体可在声子通道中实现 0.2% 的 FWHM 分辨率。几种 40Ca100MoO4 晶体（约 0.5 kg）由富集 100Mo 和贫化 40Ca 材料开发而成。这些晶体的光输出已被证明在温度范围低至 8 K 时可与参考 CaMoO4 闪烁体相媲美。晶体中危险放射性同位素的含量正在测量中。该实验对于 250 kg × 年暴露量的预计灵敏度为 lim T1/2 ∼ 3 × 1026 年，对应于有效马约拉纳中微子质量 ⟨mv⟩ ∼ 0.02 – 0.06 eV。
AMoRE (Advanced Mo based Rare process Experiment) collaboration is going to use calcium molybdate crystals as cryogenic scintillation detector in a search for neutrinoless DBD of 100Mo isotope. Simultaneous detection of phonons and light will be used to reject internal background. A FWHM resolution of 0.2% in the phonon channel has been achieved with a 0.5 cm3 crystal. Several 40Ca100MoO4 crystals (≈ 0.5 kg) have been developed from enriched 100Mo and depleted 40Ca materials. The light yield of these crystals has been shown to be comparable with reference CaMoO4 scintillators for temperatures ranging down to 8 K. The content of dangerous radioisotopes in the crystals is under measurement. The projected sensitivity of the experiment for a 250 kg × years exposure is lim T1/2 ∼ 3 × 1026 years, which corresponds to the effective Majorana neutrino mass ⟨mv⟩ ∼ 0.02 – 0.06 eV.