The BNO-LNGS joint measurement of the solar neutrino capture rate in 71Ga

We describe a cooperative measurement of the capture rate of solar neutrinos by the reaction 71Ga(\nu_e,e^-)71Ge. Extractions were made from a portion of the gallium target in the Russian-American Gallium Experiment SAGE and the extraction samples were transported to the Gran Sasso laboratory for synthesis and counting at the Gallium Neutrino Observatory GNO. Six extractions of this type were made and the resultant solar neutrino capture rate was 64 ^{+24}_{-22} SNU, which agrees well with the overall result of the gallium experiments. The major purpose of this experiment was to make it possible for SAGE to continue their regular schedule of monthly solar neutrino extractions without interruption while a separate experiment was underway to measure the response of 71Ga to neutrinos from an 37Ar source. As side benefits, this experiment proved the feasibility of long-distance sample transport in ultralow background radiochemical experiments and familiarized each group with the methods and techniques of the other.Comment: 7 pages, no figures; minor additions in version

INFLUENCE OF METALIZATION OF DIAMONDS ON STRUCTURAL FORMATION AND STRENGTH OF DIAMOND-CONTAINING COMPOSITE MATERIAL

The influence of metal refractory coatings of high-tensile diamonds on the formation of the transition zone “diamond-coating-matrix material”, the structure and physicalmechanical properties of the diamond composite WC–Co–Cu is shown.В работе показано влияние металлических тугоплавких покрытий высокопрочных алмазов на формирование переходной зоны «алмаз-покрытие-материал матрицы», структуру и физико-механические свойства композита алмаз — WC–Co–Cu

Measurement of the Solar Neutrino Capture Rate by the Russian-American Gallium Solar Neutrino Experiment During One Half of the 22-Year Cycle of Solar Activity

We present the results of measurements of the solar neutrino capture rate in gallium metal by the Russian-American Gallium Experiment SAGE during slightly more than half of a 22-year cycle of solar activity. Combined analysis of the data of 92 runs during the 12-year period January 1990 through December 2001 gives a capture rate of solar neutrinos with energy more than 233 keV of 70.8 +5.3/-5.2 (stat.) +3.7/-3.2 (syst.) SNU. This represents only slightly more than half of the predicted standard solar model rate of 128 SNU. We give the results of new runs beginning in April 1998 and the results of combined analysis of all runs since 1990 during yearly, monthly, and bimonthly periods. Using a simple analysis of the SAGE results combined with those from all other solar neutrino experiments, we estimate the electron neutrino pp flux that reaches the Earth to be (4.6 +/- 1.1) E10/(cm^2-s). Assuming that neutrinos oscillate to active flavors the pp neutrino flux emitted in the solar fusion reaction is approximately (7.7 +/- 1.8) E10/(cm^2-s), in agreement with the standard solar model calculation of (5.95 +/- 0.06) E10/(cm^2-s).Comment: English translation of article submitted to Russian journal Zh. Eksp. Teor. Fiz. (JETP); 12 pages, 5 figures. V2: Added winter-summer difference and 2 reference

ФОРПОСТ ОВОЩЕВОДЧЕСКОЙ ОТРАСЛИ РОССИИ

All-Russian Scientific Research Institute of vegetable breeding and seed production is the biggest scientific and methodological center in field of breeding and seed production of vegetable crops. In this article, the main stages of establishment and development of the institute, the biographies of leaders of the institute who made an invaluable contribution to development of breeding of vegetable crops are presented. Highly skilled scientific team of VNIISSOK and material and technical resources and facilities allow keeping the leadership in many areas of science and breeding of vegetable crop and seed production.Всероссийский НИИ селекции и семеноводства овощных культур является крупнейшим научно-методическим, исследовательским и интеллектуальным центром по селекции и семеноводству овощных культур в России. В данной статье представлен 95-летний путь становления института в историческом разрезе от Грибовского сортового питомника до Федерального государственного бюджетного научного учреждения «Всероссийский научно-исследовательский институт селекции и семеноводства овощных культур». Даны подробные описания основных периодов развития учреждения, краткие биографические данные работавших и работающих руководителей института, выдающихся ученых, внесших большой вклад в развитие селекции и семеноводства овощных культур нашей страны, их достижения и результаты научной деятельности. Сложившийся высококвалифицированный научный коллектив ВНИИССОК и оснащенная материально-техническая база института позволяют удержать лидерские позиции в области селекции и семеноводства овощных культур, удовлетворить запросы производителей для решения продовольственной безопасности России

CORE INSTITUTION OF VEGETABLE GROWING INDUSTRY SECTOR

All-Russian Scientific Research Institute of vegetable breeding and seed production is the biggest scientific and methodological center in field of breeding and seed production of vegetable crops. In this article, the main stages of establishment and development of the institute, the biographies of leaders of the institute who made an invaluable contribution to development of breeding of vegetable crops are presented. Highly skilled scientific team of VNIISSOK and material and technical resources and facilities allow keeping the leadership in many areas of science and breeding of vegetable crop and seed production