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Your search keyword '"Rukhadze, N. I."' showing total 3 results
Start Over Author "Rukhadze, N. I." Topic beta decay
3 results on '"Rukhadze, N. I."'

1. Si pixel detectors in the detection of EC/EC decay.

Author

Jose, J. M., Čermák, P., Fajt, L., Loaiza, P., Rukhadze, N. I., Shitov, Yu. A., and Štekl, I.

Subjects
SILICON compounds, ELECTRON capture, NUCLEAR counters, PARTICLES (Nuclear physics), BETA decay, CADMIUM isotopes
Abstract

The SPT collaboration has been investigating the applicability of pixel detectors in the detection of two neutrino double electron capture (2vEC/EC) in 106Cd. The collaboration has proposed a Silicon Pixel Telescope (SPT) where a pair of Si pixel detectors with enriched Cd foil in the middle forms the detection unit. The Pixel detector gives spatial information along with energy of the particle, thus helps to identify and remove the background signals. Four units of SPT prototype (using 0.5 and 1 mm Si sensors) were fabricated and installed in the LSM underground laboratory, France. Recent progress in the SPT experiment and preliminary results from background measurements are presented. [ABSTRACT FROM AUTHOR]

Published
2015
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2. Double-Beta Decay of [sup 48]Ca in the TGV Experiment.

Author

Brudanin, V. B., Rukhadze, N. I., Briançon, Ch., Egorov, V. G., Kovalenko, V. E., Kovalik, A., Salamatin, A. V., Tsoupko-Sitnikov, V. V., Vylov, Ts., and Stekl, I.

Subjects
*DOUBLE beta decay, *BETA decay, *SPECTROMETERS
Abstract

The low-background, high-sensitivity Ge multidetector spectrometer TGV is used to study the double-beta decay of [sup 48]Ca. Additional suppression of the recorded background is achieved with neutron shielding and a method for distinguishing β particles from γ rays by detector-pulse rise time. The estimates T[sup βb2v, sub ½] = (4.2 ± 2.4) x 10[sup 19] yr and T[sub ββ0v, ½] > 1.5 x10[sup 21] yr (at a 90% C.L.) for the double-beta decay of [sup 48]Ca are obtained. [ABSTRACT FROM AUTHOR]

Published
2000
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3. Improved Limits on β[sup –] and β[sup –]β[sup –] Decays of [sup 48]Ca.

Author

Bakalyarov, A., Balysh, A., Barabash, A. S., Benes, P., Briançon, Ch., Brudanin, V., Cermák, P., Egorov, V., Hubert, F., Hubert, Ph., Korolev, N. A., Kosjakov, V. N., Kovalik, A., Lebedev, N. A., Lebedev, V. I., Novgorodov, A. F., Rukhadze, N. I., Stekl, N. I., and Timkin, V. V.

Subjects
BETA decay, ISOTOPES, CHEMICAL purification
Abstract

New limits on [sup 48]Caβ[sup –] and β[sup –]β[sup –] decays to excited states of [sup 48]Ti have been obtained using a 400cm[sup 3] low-background HPGe detector and an external source of 24.558g enriched CaF[sub 2] powder (9.822g of [sup 48]Ca). The limits for β[sup –] decay to the 6[sup +] ground state and excited 5[sup +] and 4[sup +] states in [sup 48]Sc are 1.6×10[sup 20] yr, 2.5×10[sup 20] yr, and 1.9×10[sup 20] yr at the 90% confidence level. For the β[sup –]β[sup –] decay to [sup 48]Ti, the limits to the first 2[sup +], second 2[sup +], and first 0[sup +] excited states are 1.8×10[sup 20] yr, 1.5×10[sup 20] yr, and 1.5×10[sup 20] yr, again at the 90% confidence level. © 2002 MAIK “Nauka / Interperiodica”. [ABSTRACT FROM AUTHOR]

Published
2002
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