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21.
N. I. Voropaev D. V. Balin W. H. Breunlich T. Case K. M. Crowe M. P. Faifman B. Gartner F. J. Hartmann P. Kammel B. Lauss E. M. Maev V. E. Markushin C. Petitjean G. E. Petrov G. N. Schapkin G. G. Semenchuk A. A. Vorobyov J. Zmeskal 《Hyperfine Interactions》2001,138(1-4):331-341
During 1994–1996, a series of μCF experiments were performed at PSI by the PSI-PNPI-IMEP-LBNL-TUM collaboration. These experiments
aimed at high-precision studies of the d–μ–d fusion in D2 and HD gases in a wide temperature range. The Gatchina ionization time projection chamber has been used to detect the dd-fusion
reaction products. The main parameters of the d–μ–d fusion have been measured with high absolute precision. In this report,
we present the results of the final analysis of the experimental data. The obtained results are compared with the calculations
based on a recent μCF-theory.
This revised version was published online in August 2006 with corrections to the Cover Date. 相似文献
22.
V. R. Bom J. N. Bradbury J. D. Davies A. M. Demin D. L. Demin C. W. E. van Eijk V. V. Filchenkov A. N. Golubkov N. N. Grafov V. G. Grebinnik S. K. Grishechkin K. I. Gritsaj V. G. Klevtsov A. D. Konin A. A. Kukolkin S. V. Medved' V. A. Nazarov V. V. Perevozchikov A. N. Ponomarev V. Ya. Rozhkov A. I. Rudenko S. M. Sadetsky Yu. V. Smirenin N. I. Voropaev A. A. Yukhimchuk S. A. Yukhimchuk V. G. Zinov S. V. Zlatoustovskii 《Hyperfine Interactions》2001,138(1-4):213-223
Experiments on the study of the muon catalyzed fusion (μCF) process in a double D/T mixture of hydrogen isotopes in the temperature
range 300–800 K at densities 0.3–0.5 LHD are performed at the JINR phasotron. The values of the effective μCF parameters (cycling
rate λ
c
, neutron yield Y
n
, muon losses w) are obtained. Tentative dtμ-molecule formation rates on D2 and DT molecules (λ
dtμ−d
and λ
dtμ−t
) are obtained for different mixture temperatures and densities. The results obtained show that λ
dtμ−t
increases with temperature, but its value is smaller than theoretical predictions.
This revised version was published online in August 2006 with corrections to the Cover Date. 相似文献
23.
P. Kammel V. A. Andreev D. V. Balin R. M. Carey T. Case D. B. Chitwood S. M. Clayton K. M. Crowe J. Deutsch P. T. Debevec P. U. Dick A. Dijksman J. Egger D. Fahrni A. A. Fetisov S. J. Freedman V. A. Ganzha B. Gartner J. Govaerts F. E. Gray F. J. Hartmann W. D. Herold D. W. Hertzog V. I. Jatsoura A. G. Krivshich B. Lauss E. M. Maev O. E. Maev V. E. Markushin C. J. G. Onderwater C. Petitjean G. E. Petrov C. C. Polly R. Prieels S. M. Sadetsky G. N. Schapkin R. Schmidt G. G. Semenchuk M. Soroka A. A. Vorobyov N. I. Voropaev 《Hyperfine Interactions》2001,138(1-4):435-443
The aim of the μCap experiment is a 1% measurement of the singlet capture rate Λ
S
for the basic electro-weak reaction μ + p → n + νμ. This observable is sensitive to the weak form-factors of the nucleon, in particular to the induced pseudoscalar coupling
constant g
P
. It will provide a rigorous test of theoretical predictions based on the Standard Model and effective theories of QCD. The
present method is based on high precision lifetime measurements of μ− in hydrogen gas and the comparison with the free μ+ lifetime. The μ− experiment will be performed in ultra-clean, deuterium-depleted H2 gas at 10 bar. Low density compared to liquid H2 is chosen to avoid uncertainties due to ppμ formation. A time projection chamber acts as a pure hydrogen active target. It defines the muon stop position in 3D and
detects rare background reactions. Decay electrons are tracked in cylindrical wire-chambers and a scintillator array covering
75% of 4π.
This revised version was published online in August 2006 with corrections to the Cover Date. 相似文献
24.
25.
M.L. Zheludkevich A.G. Gusakov A.G. Voropaev E.N. Kozyrski S.A. Raspopov A.A. Vecher 《Journal of membrane science》2008,320(1-2):528-532
Permeation of atomic as well as molecular hydrogen through palladium membranes has been investigated experimentally in the temperature range from room temperature to 200 °C and at a higher incident flux of hydrogen atoms on palladium surface than in previous studies. The results demonstrate that phenomena of ‘superpermeability’ and ‘pumping’ of atomic gases through metal membranes are of a common nature. A theoretical model based on chemical thermodynamics and diffusion theory adequately describes the quantitative relationships observed in experiments. It was found that permeability of atomic hydrogen depends strongly on the magnitude of surface incident flux and membrane temperature. 相似文献
26.
27.
Doklady Physics - The limitations imposed on the orbit and the distribution of the density of the early Moon by present-day measurements of its fossil tidal bulge are studied. A semi-analytical... 相似文献
28.
Kolodeznyi E. S. Rochas S. S. Kurochkin A. S. Babichev A. V. Novikov I. I. Gladyshev A. G. Karachinsky L. Ya. Denisov D. V. Bobretsova Yu. K. Klimov A. A. Blokhin S. A. Voropaev K. O. Ionov A. S. 《Optics and Spectroscopy》2018,125(4):599-599
Optics and Spectroscopy - The name of the seventh author should read L. Ya. Karachinsky. 相似文献
29.
R. M. Abdullina I. N. Voropaev A. V. Romanenko V. A. Chumachenko A. S. Noskov A. S. Mashnin 《Russian Journal of Applied Chemistry》2012,85(8):1204-1211
The influence of the process conditions on the fatty acid composition and solid fat content of the products was examined for partial hydrogenation of sunflower oil in a static reactor using 1.0 wt% Pd/C powder catalyst. The solid fat content curves of the oil hydrogenation products were analyzed in relation to the process conditions. 相似文献
30.