Zobrazeno 1 - 10
of 30
pro vyhledávání: '"P.P. Sverzellati"'
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 372:415-424
The gamma ray activity of three samples of natural neodymium has been measured and the concentration of radioactive elements from uranium and thorium chains as well as that from radioactive isotopes of lantanium and lutetium has been quantitatively d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf94256c1343f5dcf6cdcbb4594fde50
https://doi.org/10.1016/0168-9002(95)00850-0
https://doi.org/10.1016/0168-9002(95)00850-0
Autor:
A. S. Barabash, C. Arpesella, P.P. Sverzellati, Ettore Fiorini, E. Bellotti, C. Brofferio, V. I. Umatov
Publikováno v:
Europhysics Letters (EPL). 27:29-34
New lower limits on the half-lives for ββ decay of 96Zr and 150Nd to excited states of 96Mo and 150Sm have been obtained. They range between 1 1019 and 4 1019 years (90% c.l.). The measurements were performed while searching for the de-excitation g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c6c5ba5bfa0b9414a0d436daa0db4080
https://doi.org/10.1209/0295-5075/27/1/006
https://doi.org/10.1209/0295-5075/27/1/006
Autor:
F. Allegretti, A. Giuliani, C. Brofferio, M. Pavan, E. Fiorini, L. Zanotti, D.V. Camin, A. Alessandrello, Oliviero Cremonesi, E. Previtali, S. Pizzini, P.P. Sverzellati, G. Pessina
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 83:539-544
Bolometric detectors made with samples of crystalline and polycrystalline lead have been operated to measure their internal radioactivity due to 210 Pb. It has been found that contaminations of hundreds of becquerels per kilogram are present in comme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e86f5b7fd3a52f066f971cbc7b473363
https://doi.org/10.1016/0168-583x(93)95884-8
https://doi.org/10.1016/0168-583x(93)95884-8
Autor:
T. Tabarelli de Fatis, Oliviero Cremonesi, S. Parmeggiano, G. Gervasio, Lucio Rossi, Ettore Fiorini, S. Ragazzi, L. Zanotti, G. Sala, R Cavallini, J. Szarka, P.P. Sverzellati, S. Latorre, E. Bellotti
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 315:252-256
The lower limits on the neutrinoless and two neutrino ββ-decay of 136Xe, obtained with a multi-element proportional chamber, are reported. The sensitivity of the experiment was limited by the level of the background contamination. The experimental
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3230b0fc5db589ad855f026c9648ea40
https://doi.org/10.1016/0168-9002(92)90710-l
https://doi.org/10.1016/0168-9002(92)90710-l
Autor:
E. Bellotti, T. Tabarelli de Fatis, A.J. Szady, J. Szarka, P.P. Sverzellati, S. Ragazzi, L. Zanotti, Oliviero Cremonesi, G. Gervasio, Ettore Fiorini, C. Cattadori
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 62:529-534
A sample of xenon enriched in 136Xe has been obtained with the ultracentrifuge system of the United States Department of Energy in Oak Ridge, Tennessee. The same system has also been used for cleanup only, namely to eliminate undesired gas impurities
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ebfd17a79efb8a0ad021d7ebac9985a
https://doi.org/10.1016/0168-583x(92)95386-6
https://doi.org/10.1016/0168-583x(92)95386-6
Autor:
P.P. Sverzellati, Oliviero Cremonesi, G. Gervasio, Ettore Fiorini, L. Zanotti, J. Szarka, T. Tabarelli de Fatis, Lucio Rossi, S. Ragazzi, E. Bellotti
Publikováno v:
Physics Letters B. 266:193-200
We have searched for two neutrino and neutrinoless double beta decay of 136 Xe with a multicell proportional counter in the Gran Sasso underground laboratory. The search for the two neutrino channel has been based on the comparison of spectra obtaine
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b9e957ecd1f4c754ff41fe8c0a5ca785
https://doi.org/10.1016/0370-2693(91)90767-k
https://doi.org/10.1016/0370-2693(91)90767-k
Measurements on radioactivity of ancient roman lead to be used as shield in searches for rare events
Autor:
G. Mezzorani, P.P. Sverzellati, G. Gervasio, D. Salvi, Ernst Pernicka, Ettore Fiorini, G. Heusser, Giovanni Fiorentini, C. Cattadori, Piero Quarati, A. Alessandrello, L. Zanotti
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 61:106-117
An ingot from the load of lead carried by a Roman ship sunken near Sardinia has been analysed for its composition and purity from radioactive contaminants in view of its possible use to shield low level counting experiments. Measurements carried out
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::995fc0f631ea7efb8f4e5d056379939b
https://doi.org/10.1016/0168-583x(91)95569-y
https://doi.org/10.1016/0168-583x(91)95569-y
Autor:
A. S. Barabash, C. Brofferio, Ettore Fiorini, V. I. Umatov, E. Bellotti, P.P. Sverzellati, C. Arpesella
Publikováno v:
Nuclear Physics B - Proceedings Supplements. 35:375-377
We have performed an experimental study of double beta decay of 96Zr to excited states in 96Mo by means of a HPGe detector. New limits on the half-lives of these particular decays have been obtained, ranging between 2 × 1019 yr and 4 × 1019 yr (90%
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::df2d15d7b67f32ea5bbe1d7e48ab9ed9
https://doi.org/10.1016/0920-5632(94)90281-x
https://doi.org/10.1016/0920-5632(94)90281-x
Autor:
Oliviero Cremonesi, L. Zanotti, Ettore Fiorini, L. Rossi, E. Bellotti, P.P. Sverzellati, A. Alessandrello, C. Liguori, C. Cattadori, A. Pullia, Stefano Ragazzi, D. V. Camin
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 17:411-417
New half-life limits on the double beta decay of 76 Ge and 130 Te are presented. The design of a multielement proportional chamber for a double beta decay experiment on 136 Xe is described and test results obtained with one element counter filled wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35816ee57917512c8338abedcd6c5e44
https://doi.org/10.1016/0168-583x(86)90174-6
https://doi.org/10.1016/0168-583x(86)90174-6
Autor:
L. Zanotti, A. Pullia, M. Corti, E. Fiorini, A. Sarracino, P.P. Sverzellati, E. Bellotti, C. Liguori
Publikováno v:
Physics Letters B. 124:435-438
Preliminary results are reported of an experiment on electron stability carried out with a Ge(Li) detector in the Mont Blanc laboratory at a depth of about 5000 mwe. No evidence was found either for the disappearance of K electrons in germanium atoms
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bd949d39aae8c50f869e57118b77d95c
https://doi.org/10.1016/0370-2693(83)91490-9
https://doi.org/10.1016/0370-2693(83)91490-9