首页> 外文会议>International Heidelberg Conference >STRUCTURE OF BACKGROUND IN THE HEIDELBERG —MOSCOW EXPERIMENT ON SEARCH FOR AND INVESTIGATION OF DOUBLE BETA DECAY OF ~(76)Ge
【24h】

STRUCTURE OF BACKGROUND IN THE HEIDELBERG —MOSCOW EXPERIMENT ON SEARCH FOR AND INVESTIGATION OF DOUBLE BETA DECAY OF ~(76)Ge

机译:Heidelberg -Moscow试验的背景下的背景和调查〜(76)GE的双β衰减

获取原文

摘要

Independent analysis of the spectra from the Heidelberg–Moscow experiment has been carried out. A direct comparison of the peak intensities in the spectra allows the conclusion that in the energy range up to 3200 keV the background is due to detection of γ-rays from the decay of trace impurities of anthropogenic and cosmogenic nuclides occurring in the apparatus between the HPGe detectors and the main (Pb and Cu) shielding. The ~(226)Ra, ~(214)Pb, and ~(214)Bi γ-rays observed in the spectra are shown to arise in the ~(226)Ra rather than ~(238)U cay chain. The estimates of the expected intensities of weak ~(214)Bi γ-rays in the spectrum region in the vicinity of Q_(ββ)(~(76)Ge)=2039 keV do not contradict observation of the peak at 2039 keV as claimed by Klapdor-Kleingrothaus and coauthors.
机译:已经进行了海德堡莫斯科实验的对光谱的独立分析。直接比较光谱中的峰值强度允许结论,在能量范围内,在高达3200keV的能量范围内,背景是由于在HPGE之间的装置中发生的人为和富含核酸核苷酸的痕量杂质衰减的检测到γ射线的检测探测器和主要(PB和Cu)屏蔽。在光谱中观察到的〜(226)Ra,〜(214)Pb和〜(214)Biγ射线在〜(226)Ra而不是〜(238)U Cay链中出现。 Q_(ββ)附近的光谱区域中弱〜(214)Biγ射线的预期强度的估计(〜(76)Ge)= 2039keV在2039Kev的峰值下不相互矛盾,如上所述由Klapdor-Kleingrothaus和Coauthors。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号