排序方式: 共有14条查询结果,搜索用时 25 毫秒
1.
Abdurashitov JN Gavrin VN Girin SV Gorbachev VV Ibragimova TV Kalikhov AV Khairnasov NG Knodel TV Kornoukhov VN Mirmov IN Shikhin AA Veretenkin EP Vermul VM Yants VE Zatsepin GT Bowles TJ Nico JS Teasdale WA Wark DL Cherry ML Karaulov VN Levitin VL Maev VI Nazarenko PI Shkol'nik VS Skorikov NV Cleveland BT Daily T Davis R Lande K Lee CK Wildenhain PW Khomyakov YS Zvonarev AV Elliott SR Wilkerson JF 《Physical review letters》1996,77(23):4708-4711
2.
Abazov AI Anosov OL Faizov EL Gavrin VN Kalikhov AV Knodel TV Knyshenko II Kornoukhov VN Mezentseva SA Mirmov IN Ostrinsky AV Pshukov AM Revzin NE Shikhin AA Timofeyev PV Veretenkin EP Vermul VM Zatsepin GT Bowles TJ Cleveland BT Elliott SR O'Brien HA Wark DL Wilkerson JF Davis R Lande K Cherry ML Kouzes RT 《Physical review letters》1991,67(24):3332-3335
3.
V. V. Gorbachev V. N. Gavrin T. V. Ibragimova A. V. Kalikhov Yu. M. Malyshkin A. A. Shikhin 《Physics of Atomic Nuclei》2015,78(14):1617-1620
A technique for the measurement of activities of intense β sources by measuring the continuous gamma-radiation (internal bremsstrahlung) spectra is developed. A method for reconstructing the spectrum recorded by a germanium semiconductor detector is described. A method for the absolute measurement of the internal bremsstrahlung spectrum of 51Cr is presented. 相似文献
4.
D. N. Abdurashitov E. P. Veretenkin V. N. Gavrin V. V. Gorbachev T. V. Ibragimova A. V. Kalikhov I. N. Mirmov A. A. Shikhin V. E. Yants V. I. Barsanov A. A. Dzhanelidze S. B. Zlokazov S. Yu. Markov Z. N. Shakirov B. T. Cleveland 《Physics of Atomic Nuclei》2007,70(2):311-318
The activity of an artificial neutrino source based on 37Ar was measured by a specially developed method of directly counting 37Ar decays in a proportional counter. This source was used to irradiate the target of the SAGE radiochemical gallium—germanium neutrino telescope at the Baksan Neutrino Observatory (Institute for Nuclear Research, Russian Academy of Sciences, Moscow), whereupon the measurements were performed at the Institute of Reactor Materials (Zarechny, Sverdlovsk oblast, Russia). The method used to prepare gaseous samples for measurements in proportional counters and the counting procedure are described. The measured activity of the 37Ar neutrino source is 405.1 ± 3.7 kCi (corrected for decays that occurred within the period between the instant of activity measurement and the commencement of the irradiation of Ga target at 04:00 Moscow time, 30.04.2004). 相似文献
5.
J. N. Abdurashitov V. N. Gavrin S. V. Girin V. V. Gorbachev T. V. Ibragimova A. V. Kalikhov N. G. Khairnasov T. V. Knodel I. N. Mirmov A. A. Shikhin E. P. Veretenkin V. M. Vermul V. E. Yants G. T. Zatsepin T. J. Bowles W. A. Teasdale D. L. Wark J. S. Nico M. L. Cherry B. T. Cleveland R. Davis Jr. K. Lande P. S. Wildenhain S. R. Elliott J. F. Wilkerson 《Physics of Atomic Nuclei》2000,63(6):943-950
The solar-neutrino-capture rate measured by the Russian-American Gallium Experiment on metallic gallium during the period from January 1990 to December 1997 is (67.2 ?7.0?3.0 +7.2+3.5 ) SNU, where the uncertainties are statistical and systematic, respectively. This result represents a 7σ depression in the neutrino flux in relation to the predicted standard-solar-model rates. The experimental procedures used and data analysis are presented. 相似文献
6.
V. V. Gorbachev V. N. Gavrin T. V. Ibragimova A. V. Kalikhov Yu. M. Malyshkin A. A. Shikhin 《Physics of Particles and Nuclei》2017,48(1):1-4
A method of determining the activity of intensive distributed -sources on the measurement of the continuous spectrum of radiation, for example the internal bremsstrahlung, is developed. The recurrent formula for reconstructing of a continuous spectrum, registered in a Ge detector, at distorting it in the detector. The method of precise measurements of the spectrum of 51Cr internal bremsstrahlung using two point sources of low activity is described. 相似文献
7.
R Nirmala V Sankaranarayanan K Sethupathi AV Morozkin T Geethakumary Y Hariharan 《Pramana》2002,58(5-6):1101-1104
New R
2Ti3Ge4 (R=Dy, Ho and Er) intermetallic compounds have been synthesized and characterized by X-ray diffraction and low temperature ac
magnetic susceptibility, electrical resistivity and thermoelectric power measurements were carried out. The compounds crystallize
in the parent, Sm5Ge4-type orthorhombic structure (space group Pnma) and lanthanide contraction is observed as one moves along the rare-earth series.
The changeover from paramagnetic to antiferromagnetic phase happens at low temperatures and the ordering temperature scales
with the de Gennes factor. The electrical resistivity is metallic with a negative curvature above 100 K. Thermopower displays
a weak maximum at temperatures less than 50 K signifying the possible phonon and magnon drag effects. 相似文献
8.
V. V. Gorbachev E. P. Veretenkin V. N. Gavrin S. N. Dan’shin T. V. Ibragimova A. V. Kalikhov T. V. Knodel 《Physics of Atomic Nuclei》2013,76(12):1507-1511
The potential of the SAGE and BOREXINO experiments with 51Cr artificial neutrino sources for searches for and determination of parameters of short-baseline oscillations. 相似文献
9.
J. N. Abdurashitov E. P. Veretenkin V. M. Vermul V. N. Gavrin S. V. Girin V. V. Gorbachev P. P. Gurkina G. T. Zatsepin T. V. Ibragimova A. V. Kalikhov T. V. Knodel I. N. Mirmov N. G. Khairnasov A. A. Shikhin V. E. Yants T. J. Bowles W. A. Teasdale J. S. Nico J. F. Wilkerson B. T. Cleveland S. R. Elliott 《Journal of Experimental and Theoretical Physics》2002,95(2):181-193
We present measurements of the solar neutrino capture rate on metallic gallium in the Soviet-American gallium experiment (SAGE) over a period of slightly more than half the 22-year solar cycle. A combined analysis of 92 runs over the twelve-year period from January 1990 until December 2001 yields a capture rate of 70.8 ?5.2 +5.3 (stat) ?3.2 +3.7 (sys) SNU for solar neutrinos with energies above 0.233 MeV. This value is slightly more than half the rate predicted by the standard solar model, 130 SNU. We present the results of new runs since April 1998 and analyze all runs combined by years, months, and bimonthly periods beginning in 1990. A simple analysis of the SAGE results together with the results of other solar neutrino experiments gives an estimate of (4.6±1.2)× 1010 neutrinos cm?2 s?1 for the flux of the electron pp neutrinos that reach the Earth without changing their flavor. The flux of the pp neutrinos produced in thermonuclear reactions in the Sun is estimated to be (7.6 ± 2.0) × 1010 neutrinos cm?2 s?1, in agreement with the value of (5.95±0.06)×1010 neutrinos cm?2 s?1 predicted by the standard solar model. 相似文献
10.
V. V. Gorbachev J. N. Abdurashitov T. J. Bowles M. L. Cherry B. T. Cleveland R. Davis Jr. S. R. Elliott V. N. Gavrin S. V. Girin P. P. Gurkina T. V. Ibragimova A. V. Kalikhov N. G. Khairnasov T. V. Knodel K. Lande I. N. Mirmov J. S. Nico A. A. Shikhin W. A. Teasdale E. P. Veretenkin V. M. Vermul D. L. Wark P. S. Wildenhain J. F. Wilkerson V. E. Yants G. T. Zatsepin 《Physics of Atomic Nuclei》2002,65(12):2156-2160
The solar neutrino capture rate measured by the Russian-American Gallium Experiment on a metallic gallium target SAGE during the time from January 1990 through December 2000 is 77.0 ?6.2 ?3.0 +6.2 +3.5 SNU, where the uncertainties are statistical and systematic, respectively. The experimental procedures and data analysis are presented. 相似文献