Joint Institute for Nuclear Research
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- Category: Новости науки
В течение зимней экспедиции 2023 года коллаборация Baikal-GVD установила два новых кластера телескопа, провела ремонт и модернизацию уже установленных элементов детектора и продолжила работы по развитию системы передачи данных по оптическим линиям внутри установки.
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- Category: Новости науки
The article of the Baikal-GVD collaboration has been published in the authoritative science journal Physical Review D. The first results of the search for astrophysical neutrinos based on the data accumulated by Baikal-GVD, the Baikal Deep Underwater Neutrino Telescope, were announced. The astrophysical neutrino flux earlier detected by the Antarctic Neutrino Telescope IceCube was confirmed. The Baikal Neutrino Telescope is one of the Russian projects at the mega science level. The Baikal-GVD Telescope was ceremonially launched in March 2021 with the participation of the Minister of Higher Education and Science of the Russian Federation Valery Falkov.
В ЛЯП ОИЯИ спроектированы и испытаны экраны магнитной защиты для больших фотоэлектронных умножителей
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В журнале JINST вышла статья с описанием разработанных в ЛЯП ОИЯИ экранов для защиты фотоэлектронных умножителей (ФЭУ) от магнитного поля Земли. Экраны будут использоваться в установке OSIRIS, предназначенной для контроля радиационной чистоты жидкого сцинтиллятора детектора JUNO.
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A new species of extremophilic bacteria has been isolated by JINR scientists, along with their colleagues from INR of RAS, from subsurface water in an unused tunnel of the Baksan Neutrino Observatory of INR of RAS. The species is able to withstand high concentrations of heavy metals and to grow using C1 compounds as a carbon source. In the long term, this bacterial species can be used to purify soils and waste water from heavy metals and also to recover biomass using an inexpensive carbon source methanol.
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- Category: Новости науки
3 апреля. День сорок шестой
Новости с 12-го кластера: на 3-ей гирлянде погрузили станцию на глубину, поставили зажим креста; на 9-ой гирлянде тест через перемычку пройден, собран крест и буй, на 9-ой гирлянде работы завершены.
На 13-ом кластере установили снятый вчера модуль на щит центра кластера. Тесты с берега успешны! Поставили буй. Работы на этом кластере завершены!
Загрузили двое саней ящиками. Одни сани отправили в Байкальск.
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- Category: Новости науки
In the fall, DLNP JINR scientists returned to the Gran Sasso National Laboratory (Italy) to continue the installation of enriched Ge-76 detectors in the LEGEND experiment. The preparatory work necessary for a full-scale launch of the experiment was carried out. This was followed by reassembly of the liquid argon instrumentation and all currently available detectors made from Ge-76. All operations were performed with the direct participation of our specialists.
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26 марта. День тридцать восьмой
Кластер 11: на 2-ой гирлянде погрузили станцию на дно; поставили зажим креста и стринговращатель, чтобы откалибровать датчики.
Кластер 12: на 7-ой гирлянде смонтировали без приключений до ЦМ (центральный модуль) верхней секции; на 9-ой установлен якорь, нижняя акустика и 3 ОМ (оптический модуль). Начали вязать перемычки.
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Scientists from the Joint Institute for Nuclear Research (JINR, Dubna), along with specialists from the Limnological Institute of the Siberian Branch of the Russian Academy of Sciences (LI SB RAS, Irkutsk) and from the University of Bucharest (Romania), have examined elemental composition of Baikal sponges collected in areas with different anthropogenic load. It turned out that sponges can be successfully used as bioindicators of toxic element pollution in Lake Baikal. The results were published in the journal Marine Pollution Bulletin.
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Annually, several billions of particle interactions are detected in the ATLAS experiment at the LHC at CERN. These events are processed, analyzed, and even larger simulated data samples are generated for them. To track the location of each event record and also to be able to search for and retrieve specific events during in-depth investigations, the ATLAS EventIndex catalogue has been compiled. The EventIndex project results have been recently published in a high-ranking scientific journal Computing and Software for Big Science.
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Despite objective difficulties, DLNP JINR scientists took a decisive part in the installation of the first 60 kg of detectors of enriched Ge-76 in the LEGEND setup located at the Gran Sasso National Laboratory (Italy). In addition to the direct assembling of detector strings, our specialists fabricated high-purity nylon mini-shrouds used to reduce the radioactive background of the experiment and for the first time performed the installation of the complete liquid argon instrumentation, developed and created by a joint team of scientists from JINR and the Technical University of Munich.
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