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arXiv 1804.08482physics.ins-dethep-ex
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MEG-II实验漂移室的气体分布与监测

Gas Distribution and Monitoring for the Drift Chamber of the MEG-II Experiment

A. M. Baldini, E. Baracchini, G. Cavoto, F. Cei, M. Chiappini, G. Chiarello, C. Chiri, M. Francesconi, L. Galli, F. Grancagnolo, M. Grassi, M. Hildebrandt, V. M… 展开作者

A. M. Baldini, E. Baracchini, G. Cavoto, F. Cei, M. Chiappini, G. Chiarello, C. Chiri, M. Francesconi, L. Galli, F. Grancagnolo, M. Grassi, M. Hildebrandt, V. Martinelli, M. Meucci, D. Nicolò, M. Panareo, A. Papa, A. Pepino, B. Pruneti, F. Raffaelli, F. Renga, E. Ripiccini, G. Signorelli, G. F. Tassielli, C. Voena

摘要:

在寻找$μ^+ \to e^+ γ$衰变的MEG-II实验中,正电子轨道的重建使用了一个用氦-异丁烷混合气体操作的圆柱形漂移室。必须提供并连续监测检测器在其电子漂移特性、雪崩倍增方面的稳定性能,以及具有受控成分和纯度的气体混合物。在本文中,我们描述了所采取的策略,以满足MEG-II的目标灵敏度的要求,包括建设和调试的一个小房间的气体质量的在线监测。

英文摘要:

The reconstruction of the positron trajectory in the MEG-II experiment searching for the $μ^+ \to e^+ γ$ decay uses a cylindrical drift chamber operated with a helium-isobutane gas mixture. A stable performance of the detector in terms of its electron drift properties, avalanche multiplication, and with a gas mixture of controlled composition and purity has to be provided and continuously monitored. In this paper we describe the strategies adopted to meet the requirements imposed by the target sensitivity of MEG-II, including the construction and commissioning of a small chamber for an online monitoring of the gas quality.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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