Zobrazeno 1 - 10
of 196
pro vyhledávání: '"Kovtun, G."'
Autor:
Belli, P., Bernabei, R., Cappella, F., Caracciolo, V., Cerulli, R., Danevich, F. A., Denisov, V. Yu., Incicchitti, A., Kasperovych, D. V., Kobychev, V. V., Kovtun, G. P., Laubenstein, M., Poda, D. V., Polischuk, O. G., Shcherban, A. P., Solopikhin, D. A., Tessalina, S., Tretyak, V. I.
Publikováno v:
Eur. Phys. J. A 60 (2024) 150
A long-term measurement was conducted to search for $\alpha$, double-$\alpha$ and double-$\beta$ decays with $\gamma$ quanta emission in naturally occurring osmium isotopes. This study took advantage of two ultra-low background HPGe detectors and one
Externí odkaz:
http://arxiv.org/abs/2406.19062
Autor:
Beeman, J. W., Benato, G., Bucci, C., Canonica, L., Carniti, P., Celi, E., Clemenza, M., D'Addabbo, A., Danevich, F. A., Di Domizio, S., Di Lorenzo, S., Dubovik, O. M., Iachellini, N. Ferreiro, Ferroni, F., Fiorini, E., Fu, S., Garai, A., Ghislandi, S., Gironi, L., Gorla, P., Gotti, C., Guillaumon, P. V., Helis, D. L., Kovtun, G. P., Mancuso, M., Marini, L., Olmi, M., Pagnanini, L., Pattavina, L., Pessina, G., Petricca, F., Pirro, S., Pozzi, S., Puiu, A., Quitadamo, S., Rothe, J., Scherban, A. P., Schönert, S., Solopikhin, D. A., Strauss, R., Tarabini, E., Tretyak, V. I., Tupitsyna, I. A., Wagner, V.
One of the most energetic events in the Universe are core-collapse Supernovae (SNe), where almost all the star's binding energy is released as neutrinos. These particles are direct probes of the processes occurring in the stellar core and provide uni
Externí odkaz:
http://arxiv.org/abs/2206.05116
Autor:
Beeman, J. W., Benato, G., Bucci, C., Canonica, L., Carniti, P., Celi, E., Clemenza, M., D'Addabbo, A., Danevich, F. A., Di Domizio, S., Di Lorenzo, S., Dubovik, O. M., Iachellini, N. Ferreiro, Ferroni, F., Fiorini, E., Fu, S., Garai, A., Ghislandi, S., Gironi, L., Gorla, P., Gotti, C., Guillaumon, P. V., Helis, D. L., Kovtun, G. P., Mancuso, M., Marini, L., Olmi, M., Pagnanini, L., Pattavina, L., Pessina, G., Petricca, F., Pirro, S., Pozzi, S., Puiu, A., Quitadamo, S., Rothe, J., Scherban, A. P., Schoenert, S., Solopikhin, D. A., Strauss, R., Tarabini, E., Tretyak, V. I., Tupitsyna, I. A., Wagner, V.
Publikováno v:
Eur. Phys. J. C (2022) 82:692
RES-NOVA is a newly proposed experiment for the detection of neutrinos from astrophysical sources, mainly Supernovae, using an array of cryogenic detectors made of PbWO$_4$ crystals produced from archaeological Pb. This unconventional material, chara
Externí odkaz:
http://arxiv.org/abs/2203.07441
Publikováno v:
Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, Iss 4-6, Pp 46-51 (2023)
High-purity fusible metals Cd, Zn, Pb and archaeological archPb are used as component elements in semiconductor and low-background scintillation detectors based on CdTe, CdZnTe, CdWO4 PbWO4, ZnWO4 required for registering ionizing radiation and searc
Externí odkaz:
https://doaj.org/article/276e74d03ab44e73bd74809fc9eb08e5
Autor:
Belli, P., Bernabei, R., Cappella, F., Caracciolo, V., Cerulli, R., Danevich, F. A., Incicchitti, A., Kasperovych, D. V., Kobychev, V. V., Kovtun, G. P., Kovtun, N. G., Laubenstein, M., Merlo, V., Poda, D. V., Polischuk, O. G., Shcherban, A. P., Tessalina, S., Tretyak, V. I.
Double-beta processes in $^{184}$Os and $^{192}$Os were searched for over 15851 h at the Gran Sasso National Laboratory (LNGS) of the I.N.F.N. by using a 118 g ultra-pure osmium sample installed on the endcap of a 112 cm$^3$ ultra-low-background broa
Externí odkaz:
http://arxiv.org/abs/2106.05862
Autor:
Bellini, F., Beretta, M., Cardani, L., Carniti, P., Casali, N., Celi, E., Chiesa, D., Clemenza, M., Dafinei, I., Di Domizio, S., Ferroni, F., Gironi, L., Gorbenko, Yu. V., Gotti, C., Kovtun, G. P., Laubenstein, M., Nagorny, S., Nisi, S., Pagnanini, L., Pattavina, L., Pessina, G., Pirro, S., Previtali, E., Rusconi, C., Schaffner, K., Shcherban, A. P., Solopikhin, D. A., Virich, V. D., Tomei, C., Vignati, M.
The production of ultra-pure raw material is a crucial step to ensure the required background level in rare event searches. In this work, we establish an innovative technique developed to produce high-purity (99.999%) granular zinc. We demonstrate th
Externí odkaz:
http://arxiv.org/abs/2012.05873
Autor:
Belli, P., Bernabei, R., Cappella, F., Caracciolo, V., Cerulli, R., Danevich, F. A., Incicchitti, A., Kasperovych, D. V., Kobychev, V. V., Kovtun, G. P., Kovtun, N. G., Laubenstein, M., Poda, D. V., Polischuk, O. G., Shcherban, A. P., Tessalina, S., Tretyak, V. I.
Publikováno v:
Phys. Rev. C 102 (2020) 024605
A search for $\alpha$ decay of naturally occurring osmium isotopes to the lowest excited levels of daughter nuclei has been performed by using an ultra-low-background Broad-Energy Germanium $\gamma$-detector with a volume of 112 cm$^3$ and an ultra-p
Externí odkaz:
http://arxiv.org/abs/2009.01508
Autor:
Danevich, F. A., Hult, M., Kasperovych, D. V., Kovtun, G. P., Kovtun, K. V., Lutter, G., Marissens, G., Polischuk, O. G., Stetsenko, S. P., Tretyak, V. I.
Publikováno v:
Nuclear Physics A 996 (2020) 121703
The first ever search for $2\varepsilon$ and $\varepsilon\beta^+$ decay of $^{174}$Hf was realized using a high-pure sample of hafnium (with mass 179.8 g) and the ultra low-background HPGe-detector system located 225 m underground. After 75 days of d
Externí odkaz:
http://arxiv.org/abs/2001.06301
First search for $\alpha$ decays of naturally occurring Hf nuclides with emission of $\gamma$ quanta
Autor:
Danevich, F. A., Hult, M., Kasperovych, D. V., Kovtun, G. P., Kovtun, K. V., Lutter, G., Marissens, G., Polischuk, O. G., Stetsenko, S. P., Tretyak, V. I.
Publikováno v:
The European Physical Journal A 56 (2020) 5
The first ever search for $\alpha$ decays to the first excited state in Yb was performed for six isotopes of hafnium (174, 176, 177, 178, 179, 180) using a high purity Hf-sample of natural isotopic abundance with a mass of 179.8 g. For $^{179}$Hf, al
Externí odkaz:
http://arxiv.org/abs/1911.02597
Influence of impurities and structural defects on the properties of CdTe- and CdZnTe-based detectors
Autor:
Kondrik A. I., Kovtun G. P.
Publikováno v:
Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, Iss 1-3, Pp 31-38 (2022)
The most researched materials for uncooled semiconductor detectors of ionizing radiation are CdTe:Cl and Cd0.9Zn0.1Te, which allow to obtain detectors with high values of resistivity ρ and electron mobility. In the process of producing detector mate
Externí odkaz:
https://doaj.org/article/86d78f4bee914fa49f35662a19de73e0