New Design of Scintillation Strips for the DANSS Detector Upgrade

IF 0.4 4区 工程技术 Q4 ENGINEERING, MULTIDISCIPLINARY Instruments and Experimental Techniques Pub Date : 2024-12-05 DOI:10.1134/S0020441224701100
D. N. Svirida
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Abstract

Scintillation plastic strips with wave length shifting fibers are the basic elements of the sensitive volume of the reactor antineutrino detector DANSS. The need for the strip’s design improvement is caused by the limitations of the experiment sensitivity to the sterile neutrino searches due to the moderate energy resolution of the detector. The new design of the strips features much higher light output and better light collection homogeneity. A method is discussed of simultaneous light detection from both ends of each fiber. This doubles the number of detected photons and gives information on the longitudinal event coordinate. The paper reflects the details and the status of the detector upgrade together with the recent beam test results. The expected influence of the improvements on the sensitivity to the sterile neutrino is also considered.

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用于DANSS探测器升级的新型闪烁条设计
带有波长移位光纤的闪烁塑料条是反应堆反中微子探测器DANSS敏感体的基本元件。由于探测器的能量分辨率适中,实验对无菌中微子搜索的灵敏度受到限制,因此需要改进条带的设计。新设计的光带具有更高的光输出和更好的光收集均匀性。讨论了一种从每根光纤的两端同时检测光的方法。这使探测到的光子数量增加了一倍,并给出了纵向事件坐标的信息。本文介绍了探测器升级的细节和现状,以及最近的光束测试结果。本文还考虑了改进对惰性中微子灵敏度的预期影响。
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来源期刊
Instruments and Experimental Techniques
Instruments and Experimental Techniques 工程技术-工程:综合
CiteScore
1.20
自引率
33.30%
发文量
113
审稿时长
4-8 weeks
期刊介绍: Instruments and Experimental Techniques is an international peer reviewed journal that publishes reviews describing advanced methods for physical measurements and techniques and original articles that present techniques for physical measurements, principles of operation, design, methods of application, and analysis of the operation of physical instruments used in all fields of experimental physics and when conducting measurements using physical methods and instruments in astronomy, natural sciences, chemistry, biology, medicine, and ecology.
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