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  1. Article: Extending the dynamic range of nuclear pulse spectrometers.

    Pullia, A / Zocca, F / Pascovici, G / Bazzacco, D

    The Review of scientific instruments

    2008  Volume 79, Issue 3, Page(s) 36105

    Abstract: Using an innovative time-varying front-end electronics in conjunction with a bulky coaxial high-purity germanium detector, we were able to extend the range of the radionuclide spectra well beyond the analog to digital converter (ADC) saturation point. ... ...

    Abstract Using an innovative time-varying front-end electronics in conjunction with a bulky coaxial high-purity germanium detector, we were able to extend the range of the radionuclide spectra well beyond the analog to digital converter (ADC) saturation point. The electronics automatically conditions the signal for digital-filtering optimization if it is in the ADC voltage range and for time-over-threshold analysis if it exceeds the ADC range. A high spectroscopic resolution has been achieved in both operation ranges. An unprecedented wide energy range from 5 keV to 150 MeV of equivalent energy, or 90 dB, has been obtained using a single acquisition chain, while maintaining a high-energy resolution in the whole spectrum. For example, with an ADC range of 3 MeV a resolution has been obtained of 1.3/2.2 keV full width at half maximum on the 122/1332 keV gamma-ray lines of 57Co and 60Co, and of <0.4% in the time-over-threshold region, or for energy deposits beyond 3 MeV.
    Language English
    Publishing date 2008-03
    Publishing country United States
    Document type Journal Article
    ZDB-ID 209865-9
    ISSN 1089-7623 ; 0034-6748
    ISSN (online) 1089-7623
    ISSN 0034-6748
    DOI 10.1063/1.2894305
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Reaction dynamics and nuclear structure of moderately neutron-rich Ne isotopes by heavy ion reactions

    Bottoni S. / Benzoni G. / Leoni S. / Montanari D. / Bracco A. / Vigezzi E. / Azaiez F. / Corradi L. / Bazzacco D. / Farnea E. / Gadea A. / Szilner S. / Pollarolo G.

    EPJ Web of Conferences, Vol 66, p

    2014  Volume 03012

    Abstract: The heavy ion reaction 22Ne+208Pb at 128 MeV of bombarding energy has been studied using the PRISMA-CLARA experimental setup at Legnaro National Laboratories. Elastic, inelastic and one nucleon transfer cross sections have been measured. The experimental ...

    Abstract The heavy ion reaction 22Ne+208Pb at 128 MeV of bombarding energy has been studied using the PRISMA-CLARA experimental setup at Legnaro National Laboratories. Elastic, inelastic and one nucleon transfer cross sections have been measured. The experimental results are presented in parallel with the analysis on existing data for the unstable 24Ne nucleus, from the reaction 24Ne+208Pb at 182 MeV (measured at SPIRAL with the VAMOS-EXOGAM setup). The β2C charge deformation parameter for both 22Ne and 24Ne has been determined by a DWBA analysis of the experimental angular dis- tributions, showing a strong reduction for 24Ne.
    Keywords Physics ; QC1-999 ; Science ; Q
    Language English
    Publishing date 2014-03-01T00:00:00Z
    Publisher EDP Sciences
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: Analysis of the Response of AGATA Detectors at GSI

    Lalović N. / Perez-Vidal R. M. / Louchart C. / Michelagnoli C. / Ralet D. / Arici T. / Bazzacco D. / Clément E. / Gadea A. / Gerl J. / Kojouharov I. / Korichi A. / Labiche M. / Ljungvall J. / Lopez-Martens A. / Nyberg J. / Pietralla N. / Pietri S. / Rudolph D. /
    Stezowski O.

    EPJ Web of Conferences, Vol 93, p

    2015  Volume 07007

    Abstract: In 2012 and 2014 the γ-ray tracking spectrometer AGATA was operated at the SIS/FRS facility at GSI in Darmstadt, Germany. The performance of the array is discussed, outlining some important aspects of the offline data processing and analysis. Relying on ... ...

    Abstract In 2012 and 2014 the γ-ray tracking spectrometer AGATA was operated at the SIS/FRS facility at GSI in Darmstadt, Germany. The performance of the array is discussed, outlining some important aspects of the offline data processing and analysis. Relying on the data obtained from measurements with standard γ-ray sources, a first estimate of the photopeak efficiency and peak-to-total (P/T) is presented.
    Keywords Science ; Q ; Physics ; QC1-999
    Language English
    Publishing date 2015-01-01T00:00:00Z
    Publisher EDP Sciences
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article ; Online: Low-lying bands with different quadrupole deformation in 155Dy

    Petkov P. / Yavahchova M.S. / Möller O. / Dewald A. / Saha B. / Fitzler A. / Jessen K. / Tonev D. / Klug T. / Heinze S. / Jolie J. / von Brentano P. / Goutev N. / Bazzacco D. / Ur C. A. / Farnea C. A. / Axiotis M. / Lunardi S. / de Angelis G. /
    Napoli D. R. / Marginean N. / Martinez T. / Caprio M. A.

    EPJ Web of Conferences, Vol 66, p

    2014  Volume 02082

    Abstract: To investigate the interplay between collective and single particle degrees of freedom in odd nuclei, Recoil distance Doppler-shift and Doppler-shift attenuation lifetime measurements were carried out for levels in 155Dy in coincidence detection of gamma- ...

    Abstract To investigate the interplay between collective and single particle degrees of freedom in odd nuclei, Recoil distance Doppler-shift and Doppler-shift attenuation lifetime measurements were carried out for levels in 155Dy in coincidence detection of gamma-rays. 26 lifetimes were determined using the Differential decay curve method. Particle plus triaxial rotor model (PTRM) calculations were performed to compare the experimental level scheme and transition strengths with theoretical ones in order to get information on the quadrupole deformation (є,γ) of the bands. As a result, different quadrupole deformations for the one-quasineutron bands at low and medium spins are deduced.
    Keywords Physics ; QC1-999 ; Science ; Q
    Language English
    Publishing date 2014-03-01T00:00:00Z
    Publisher EDP Sciences
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article ; Online: AGATA modules as Compton polarimeters for the measurement of gamma-ray linear polarisation

    Melon B. / Bizzeti P. G. / Sona P. / Michelagnoli C. / Bazzacco D. / Farnea E. / Bizzeti–Sona A. M. / de Angelis G. / Gadea A. / Gottardo A. / Lunardi S. / Lenzi S. M. / Menegazzo R. / Mengoni D. / Nannini A. / Napoli D. R. / Perego A. / Recchia F. / Sahin E. /
    Valiente–Dobon J. J. / Ur C. A.

    EPJ Web of Conferences, Vol 66, p

    2014  Volume 11004

    Abstract: The ability of a cluster of three segmented Ge crystals (“AGATA module”) acting as a Compton polarimeter to measure the linear polarization of gamma rays has been investigated at an energy close to 511 keV. Partially polarized gamma rays have been ... ...

    Abstract The ability of a cluster of three segmented Ge crystals (“AGATA module”) acting as a Compton polarimeter to measure the linear polarization of gamma rays has been investigated at an energy close to 511 keV. Partially polarized gamma rays have been produced by Coulomb excitation of the first excited state of 104Pd a and 108Pd.
    Keywords Physics ; QC1-999 ; Science ; Q
    Language English
    Publishing date 2014-03-01T00:00:00Z
    Publisher EDP Sciences
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article: Decay out of superdeformed bands in the A

    Krücken / Dewald / von Brentano P / Bazzacco / Rossi-Alvarez

    Physical review. C, Nuclear physics

    1996  Volume 54, Issue 3, Page(s) 1182–1188

    Language English
    Publishing date 1996-09
    Publishing country United States
    Document type Journal Article
    ZDB-ID 209771-0
    ISSN 1089-490X ; 0556-2813 ; 2469-9985
    ISSN (online) 1089-490X
    ISSN 0556-2813 ; 2469-9985
    DOI 10.1103/physrevc.54.1182
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    Z 71/750: Show issues

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  7. Article ; Online: Spin distribution measurement for 64Ni + 100Mo at near and above barrier energies

    Singh Varinderjit / Ackermann D. / Antalic S. / Axiotis M. / Bazzacco D. / Corradi L. / De Angelis G. / Farnea E. / Gadea A. / Heßberger F.P. / Itkis M.G. / Kniajeva G.N. / Kozulin E.M. / Martinez T. / Marginean N. / Menegazzo R. / Montagnoli G. / Napoli D.R. / Oganessian Yu. Ts. /
    Ruan M. / Sagaidak R.N. / Scarlassara F. / Stefanini A.M. / Szilner S. / Ur C.

    EPJ Web of Conferences, Vol 86, p

    2015  Volume 00053

    Abstract: Spin distribution measurements were performed for the reaction 64Ni + 100Mo at three beam energies ranging from 230 to 260 MeV. Compound nucleus (CN) spin distributions were obtained channel selective for each evaporation residue populated by the de- ... ...

    Abstract Spin distribution measurements were performed for the reaction 64Ni + 100Mo at three beam energies ranging from 230 to 260 MeV. Compound nucleus (CN) spin distributions were obtained channel selective for each evaporation residue populated by the de-excitation cascade. A comparison of the spin distribution at different beam energies indicates that its slope becomes steeper and steeper with increasing beam energy. This change in slope of the spin distribution is mainly due to the onset of fission competition with particle evaporation at higher beam energies.
    Keywords Physics ; QC1-999 ; Science ; Q
    Language English
    Publishing date 2015-01-01T00:00:00Z
    Publisher EDP Sciences
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  8. Article ; Online: Isospin Mixing in ^{80}Zr: From Finite to Zero Temperature.

    Ceruti, S / Camera, F / Bracco, A / Avigo, R / Benzoni, G / Blasi, N / Bocchi, G / Bottoni, S / Brambilla, S / Crespi, F C L / Giaz, A / Leoni, S / Mentana, A / Million, B / Morales, A I / Nicolini, R / Pellegri, L / Pullia, A / Riboldi, S /
    Wieland, O / Birkenbach, B / Bazzacco, D / Ciemala, M / Désesquelles, P / Eberth, J / Farnea, E / Görgen, A / Gottardo, A / Hess, H / Judson, D S / Jungclaus, A / Kmiecik, M / Korten, W / Maj, A / Menegazzo, R / Mengoni, D / Michelagnoli, C / Modamio, V / Montanari, D / Myalski, S / Napoli, D / Quintana, B / Reiter, P / Recchia, F / Rosso, D / Sahin, E / Salsac, M D / Söderström, P-A / Stezowski, O / Theisen, Ch / Ur, C / Valiente-Dobón, J J / Zieblinski, M

    Physical review letters

    2015  Volume 115, Issue 22, Page(s) 222502

    Abstract: The isospin mixing was deduced in the compound nucleus ^{80}Zr at an excitation energy of E^{*}=54  MeV from the γ decay of the giant dipole resonance. The reaction ^{40}Ca+^{40}Ca at E_{beam}=136  MeV was used to form the compound nucleus in the isospin ...

    Abstract The isospin mixing was deduced in the compound nucleus ^{80}Zr at an excitation energy of E^{*}=54  MeV from the γ decay of the giant dipole resonance. The reaction ^{40}Ca+^{40}Ca at E_{beam}=136  MeV was used to form the compound nucleus in the isospin I=0 channel, while the reaction ^{37}Cl+^{44}Ca at E_{beam}=95  MeV was used as the reference reaction. The γ rays were detected with the AGATA demonstrator array coupled with LaBr_{3}:Ce detectors. The temperature dependence of the isospin mixing was obtained and the zero-temperature value deduced. The isospin-symmetry-breaking correction δ_{C} used for the Fermi superallowed transitions was extracted and found to be consistent with β-decay data.
    Language English
    Publishing date 2015-11-27
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.115.222502
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: On the Road to FAIR

    Pietralla N. / Reese M / Cortes M.L. / Ameil F. / Bazzacco D. / Bentley M.A. / Boutachkov P. / Domingo-Pardo C. / Gadea A. / Gerl J. / Goel N. / Golubev P. / Górska M. / Guastalla G. / Habermann T. / Kojouharov I. / Korten W. / Merchán E. / Pietri S. /
    Ralet D. / Reiter P. / Rudolph D. / Schaffner H. / Singh P.P. / Wieland O. / Wollersheim H.J.

    EPJ Web of Conferences, Vol 66, p

    1st Operation of AGATA in PreSPEC at GSI

    2014  Volume 02083

    Abstract: The Facility for Antiproton and Ion Research (FAIR), under construction at Darmstadt will provide intense relativistic beams of exotic nuclei at its Superconducting-FRagment Separator. High-resolution in-beam γ-ray spectroscopy will be performed in the ... ...

    Abstract The Facility for Antiproton and Ion Research (FAIR), under construction at Darmstadt will provide intense relativistic beams of exotic nuclei at its Superconducting-FRagment Separator. High-resolution in-beam γ-ray spectroscopy will be performed in the HISPEC experiment, using the European Advanced GAmma-ray Tracking Array (AGATA). The PreSPEC-AGATA campaign is the predecessor of HISPEC and runs from 2012 to 2014 at GSI Helmholtzzentrum für Schwerionenforschung GmbH. Up to19 AGATA modules were used at GSI's F Ragment Separator in 2012. We report on the status of the experiment including preliminary results from performance commissioning.
    Keywords Physics ; QC1-999 ; Science ; Q
    Language English
    Publishing date 2014-03-01T00:00:00Z
    Publisher EDP Sciences
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  10. Article ; Online: Isospin mixing at finite temperature in 80Zr

    Ceruti Simone / Giaz A. / Camera F. / Avigo R. / Benzoni G. / Blasi N. / Bracco A. / Brambilla S. / Coelli S. / Corsi A. / Crespi F. / Leoni S. / Million B. / Morales-Lopez A.I. / Pellegri L. / Nicolini R. / Riboldi S. / Vandone V. / Wieland O. /
    Bortolato D. / Fanin C. / Gottardo A. / Valiente-Dobon J.J. / Bellato M. / Bazzacco D. / Mengoni D. / Michelagnoli C. / Montanari D. / Recchia F. / Farnea E. / Ur C. / Zieblinski M. / Ciemala M. / Kmiecik M. / Maj A. / Myalski S. / Styczen J.

    EPJ Web of Conferences, Vol 66, p

    2014  Volume 02018

    Abstract: Isospin mixing induced by the Coulomb interaction has been studied in the compound nucleus 80Zr at T~2 MeV produced in the fusion-evaporation reaction 40Ca+40Ca at Ebeam = 136 MeV. The isospin impurity was measured using the first step of the Giant ... ...

    Abstract Isospin mixing induced by the Coulomb interaction has been studied in the compound nucleus 80Zr at T~2 MeV produced in the fusion-evaporation reaction 40Ca+40Ca at Ebeam = 136 MeV. The isospin impurity was measured using the first step of the Giant Dipole Resonance γ decay. The preliminary value of the Coulomb spreading width has been extracted via statistical model analysis of the measured γ spectrum.
    Keywords Physics ; QC1-999 ; Science ; Q
    Language English
    Publishing date 2014-03-01T00:00:00Z
    Publisher EDP Sciences
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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