Sensitivity Enhancement of the Gravitational Detector OGRANстатья
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 14 августа 2017 г.
Местоположение издательства:Road Town, United Kingdom
Первая страница:1552
Последняя страница:1559
Аннотация:The gravitational wave antenna OGRAN is installed in the underground laboratory of the BaksanNeutrino Observatory. At the present time, it has a limited sensitivity sufficient only to detect gravitational radiation from sources situated at a distance of about 100 kpc. The calculations presented in this paper demonstrate the increase in the sensitivity by two orders of magnitude with cooling of the acoustical resonator of the antenna to the liquid-nitrogen temperature. The possibility of using the same optical detection schemeas the one under room temperature is discussed. The revised construction of the cryogenic version of the OGRAN antenna is considered. The results of experiments carried out with the pilot model of cryogenic antenna are presented.