通过使用光学模块的外字符串，提高贝加尔 - GVD中微子望远镜的灵敏度

论文标题

通过使用光学模块的外字符串，提高贝加尔 - GVD中微子望远镜的灵敏度

Increasing the sensitivity of the Baikal-GVD neutrino telescope by using external strings of optical modules

论文作者

Allakhverdyan, V. A., Avrorin, A. D., Avrorin, A. V., Aynutdinov, V. M., Bardačová, Z., Belolaptikov, I. A., Borina, I. V., Budnev, N. M., Dik, V. Y., Domogatsky, G. V., Doroshenko, A. A., Dvornický, R., Dyachok, A. N., Dzhilkibaev, Zh. -A. M., Eckerová, E., Elzhov, T. V., Fajt, L., Gafarov, A. R., Golubkov, K. V., Gorshkov, N. S., Gress, T. I., Kebkal, K. G., Kebkal, V. K., Khatun, A., Khramov, E. V., Kolbin, M. M., Konischev, K. V., Korobchenko, A. V., Koshechkin, A. P., Kozhin, V. A., Kruglov, M. V., Kulepov, V. F., Malyshkin, Y. M., Milenin, M. B., Mirgazov, R. R., Naumov, D. V., Nazari, V., Petukhov, D. P., Pliskovsky, E. N., Rozanov, M. I., Rushay, V. D., Ryabov, E. V., Safronov, G. B., Shaybonov, B. A., Seitova, D., Shelepov, M. D., Šimkovic, F., Sirenko, A. E., Skurikhin, A. V., Solovjev, A. G., Sorokovikov, M. N., Štekl, I., Stromakov, A. P., Suvorova, O. V., Tabolenko, V. A., Yablokova, Y. V., Zaborov, D. N.

论文摘要

贝加尔湖中微子望远镜的部署在贝加尔湖继续进行。到2022年4月，望远镜的十个群集已经运行，共有2880个光学模块。在这种情况下，相关任务之一是根据近年来其他中微子望远镜在其他中微子望远镜中获得的经验以及在其他中微子望远镜上获得的结果来研究提高检测器效率的可能性。在本文中，根据簇之间的其他光学模块（外部字符串）之间的其他光学模块的安装，考虑了优化望远镜配置的变体。 2022年4月在贝加尔湖安装了外部字符串的实验版本。本文介绍了添加外部字符串对中微子检测效率的影响，以及对其内部测试的外部字符串的检测和数据采集系统的技术实施。

The deployment of the Baikal-GVD deep underwater neutrino telescope is continuing in Lake Baikal. By April 2022, ten clusters of the telescope were put into operation, with 2880 optical modules in total. One of the relevant tasks in this context is to study the possibilities of increasing the efficiency of the detector based on the experience of its operation and the results obtained at other neutrino telescopes in recent years. In this paper, a variant of optimizing the configuration of the telescope is considered, based on the installation of additional strings of optical modules between the clusters (external strings). An experimental version of the external string was installed in Lake Baikal in April 2022. This paper presents a first estimate of the impact of adding external strings on the neutrino detection efficiency, as well as the technical implementation of the detection and data acquisition systems of the external string and first results of its in-situ tests.

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