Operation of semiconducting detectors, especially CdZnTe-semiconducting-detectors, immersed in liquid scintillator with the purpose of searching for rare processes, dominantly the double-beta-decay
浸入液体闪烁体中的半导体探测器,特别是 CdZnTe 半导体探测器的操作,目的是寻找罕见过程,主要是双 β 衰变
基本信息
- 批准号:139253166
- 负责人:
- 金额:--
- 依托单位:
- 依托单位国家:德国
- 项目类别:Research Grants
- 财政年份:2009
- 资助国家:德国
- 起止时间:2008-12-31 至 2014-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The search for rare events like the neutrinoless double beta decay or WIMP scattering allows us to adress fundamental questions of particle physics. Experiments like this are especialy sensitive to backgrounds and thus need a complete understanding of backgrounds and effective ways to reduce them.For this reasons, we want to study within this work weather nonpassivated CdZnTe-seminconducting-sensors can be operated in liquid scintillator and how much this would help to reduce the background. Background reduction is expected due to the passive properties as a shielding , its high radioactive purity and the possibility to use it as a veto. Within this context CZTs are of particular interest for two reasons: They can be operated at room temperature and they contain several isotopes which could undergo the neutrinoless double beta decay or related processes.So far, the operation of CZTs in FS was successfully tested within this project and a simulation environment for the experimental setup was implemented using Geant4. However, to establish the experimental fundamentals for a possible full scale experiment using this scheme, long term studies of the behaviour of both the CZTs and the FS under this conditions are necessary. In addition, it is important to analyse the expected background for example from neutrons or cosmogenic isotopes. For instance it is possible that radioactive Ions are attracted by the electrodes of the CZTs during operation, which would lead to an increased background rate.
寻找像无中微子双β衰变或WIMP散射这样的罕见事件使我们能够解决粒子物理学的基本问题。这类实验对本底特别敏感,因此需要对本底有全面的了解并采取有效的方法来降低本底,为此,我们希望研究非钝化CdZnTe半导体传感器能否在液体闪烁体中工作,以及这对降低本底有多大的帮助。由于作为屏蔽的被动特性、其高放射性纯度以及将其用作否决的可能性,预计背景减少。CZTs在这方面特别感兴趣的原因有两个:它们可以在室温下工作,并且它们含有几种可以经历无中微子双β衰变或相关过程的同位素。到目前为止,在该项目中成功测试了CZTs在FS中的操作,并使用Geant 4实现了实验装置的模拟环境。然而,要建立一个可能的全尺寸实验,使用该方案的实验基础,长期的行为的CZTs和FS在这种条件下的研究是必要的。此外,重要的是分析预期的背景,例如来自中子或宇宙成因同位素的背景。例如,在操作期间,放射性离子可能被CZT的电极吸引,这将导致增加的本底率。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Professorin Dr. Caren Hagner其他文献
Professorin Dr. Caren Hagner的其他文献
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{{ truncateString('Professorin Dr. Caren Hagner', 18)}}的其他基金
Future Physics in Borexino - Towards the Detection of CNO Neutrinos and the Search for Sterile Neutrinos
Borexino 的未来物理学 - 致力于探测 CNO 中微子和寻找惰性中微子
- 批准号:
271934076 - 财政年份:2015
- 资助金额:
-- - 项目类别:
Research Grants
WP 3 - Event reconstruction and calibration
WP 3 - 事件重建和校准
- 批准号:
520581220 - 财政年份:
- 资助金额:
-- - 项目类别:
Research Units
Analysis of zero Pion CC neutrino interactions in ANNIE
ANNIE 中零 Pion CC 中微子相互作用分析
- 批准号:
456139317 - 财政年份:
- 资助金额:
-- - 项目类别:
Research Grants
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