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On the accuracy of cross-section measurements of neutron-induced reactions using the activation technique with natural targets: The case of Ge at En=17.9 MeV
/ Chasapoglou, S (Natl. Tech. U., Athens) ; Kokkoris, M (Natl. Tech. U., Athens) ; Vlastou, R (Natl. Tech. U., Athens) ; Diakaki, M (Natl. Tech. U., Athens) ; Michalopoulou, V (Natl. Tech. U., Athens ; CERN) ; Kalamara, A (Democritos Nucl. Res. Ctr.) ; Gkatis, G (CEA Cadarache ; Natl. Tech. U., Athens) ; Stamatopoulos, A (Los Alamos ; Natl. Tech. U., Athens) ; Axiotis, M (Democritos Nucl. Res. Ctr.) ; Harissopulos, S (Democritos Nucl. Res. Ctr.) et al.
Several cross-section measurements of neutron-induced reactions on Ge found in literature, are performed utilizing natGe targets. The production of the same residual nucleus as the measured one might occur as a result of the unavoidable presence of neighboring isotopes in the same target, acting as a contamination [...]
2023 - 9 p.
- Published in : Appl. Radiat. Isot. 203 (2024) 111077
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Study of the $^3$H(p,n)$^3$He neutron producing reaction at N.C.S.R. “Demokritos” – Application on the $^{232}$Th(n,f) reaction
/ Gkatis, G (Natl. Tech. U., Athens ; CEA Cadarache) ; Michalopoulou, V (Natl. Tech. U., Athens ; CERN) ; Chasapoglou, S (Natl. Tech. U., Athens) ; Vlastou, R (Natl. Tech. U., Athens) ; Kokkoris, M (Natl. Tech. U., Athens) ; Kyritsis, N (Natl. Tech. U., Athens) ; Axiotis, M (Democritos Nucl. Res. Ctr. ; Natl. Tech. U., Athens) ; Lagoyannis, A (Democritos Nucl. Res. Ctr. ; Natl. Tech. U., Athens)
In the present work, the neutron beams produced via the $^3$H(p,n) $^3$He reaction, were studied at N.C.S.R. “Demokritos”. [...]
2022 - 6 p.
- Published in : Adv. Nucl. Phys. 28 (2022) 228-233
Fulltext: PDF;
In : 29th Symposium of the Hellenic Nuclear Physics Society (HNPS 2021), Athens, Greece, 24 - 25 Sep 2021, pp.228-233
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Measurement of the $^{232}$Th(n,f) cross section with quasi-monoenergetic neutron beams in the energy range 2–18 MeV
/ Michalopoulou, V (CERN ; Natl. Tech. U., Athens) ; Axiotis, M (Democritos Nucl. Res. Ctr.) ; Chasapoglou, S (Natl. Tech. U., Athens) ; Gkatis, G (Natl. Tech. U., Athens) ; Kalamara, A (Natl. Tech. U., Athens ; Democritos Nucl. Res. Ctr.) ; Kokkoris, M (Natl. Tech. U., Athens) ; Lagoyannis, A (Democritos Nucl. Res. Ctr.) ; Stamatopoulos, A (Natl. Tech. U., Athens) ; Tsantiri, A (Natl. Tech. U., Athens) ; Vlastou, R (Natl. Tech. U., Athens)
The fission cross section of $^{232}$Th has been measured at fast neutron energies, using a setup based on Micromegas detectors. The experiment was performed at the 5.5 MV Van de Graaff Tandem accelerator in the neutron beam facility of the National Centre for Scientific Research “Demokritos”. [...]
2021 - 10 p.
- Published in : Eur. Phys. J. A 57 (2021) 277
- Published in : Eur. Phys. J. A 57 (2021) 306
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Isospin dependence of electromagnetic transition strengths among an isobaric triplet
/ Boso, A (Padua U. ; INFN, Padua ; Teddington, Natl. Phys. Lab) ; Milne, S A (York U., England) ; Bentley, M A (York U., England) ; Recchia, F (Padua U. ; INFN, Padua) ; Lenzi, S M (Padua U. ; INFN, Padua) ; Rudolph, D (Lund U.) ; Labiche, M (Daresbury) ; Pereira-Lopez, X (York U., England) ; Afara, S (King Saud U.) ; Ameil, F (Darmstadt, GSI) et al.
Electric quadrupole matrix elements, Mp , for the Jπ=2+→0+ , ΔT=0 , T=1 transitions across the A=46 isobaric multiplet 46 Cr- 46 V- 46 Ti have been measured at GSI with the FRS-LYCCA-AGATA setup. This allows direct insight into the isospin purity of the states of interest by testing the linearity of Mp with respect to Tz . [...]
2019 - 6 p.
- Published in : Phys. Lett. B 797 (2019) 134835
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The $(n,2n)$ reaction for the lightest stable erbium isotope $^{162}\mathrm{Er}$ from reaction threshold up to 19 MeV
/ Georgali, E (Ioannina U.) ; Eleme, Z (Ioannina U.) ; Patronis, N (Ioannina U.) ; Aslanoglou, X (Ioannina U.) ; Axiotis, M (Democritos Nucl. Res. Ctr.) ; Diakaki, M (IRFU, Saclay) ; Foteinou, V (Democritos Nucl. Res. Ctr.) ; Harissopulos, S (Democritos Nucl. Res. Ctr.) ; Kalamara, A (Natl. Tech. U., Athens) ; Kokkoris, M (Natl. Tech. U., Athens) et al.
The Er162(n,2n)Er161 reaction cross section (Eth=9.26MeV) was measured at six incident neutron beam energies by means of the activation technique. Two energy regions were covered in the present work: the near-threshold energies between 10.7 and 11.3 MeV, as well as the higher energies from 17.1 up to 19.0 MeV. [...]
2018 - 10 p.
- Published in : Phys. Rev. C 98 (2018) 014622
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Measurement of the$^{234}$U(n, f ) cross-section with quasi-monoenergetic beams in the keV and MeV range using a Micromegas detector assembly
/ Stamatopoulos, A (Natl. Tech. U., Athens) ; Kanellakopoulos, A (Natl. Tech. U., Athens) ; Kalamara, A (Natl. Tech. U., Athens) ; Diakaki, M (Natl. Tech. U., Athens ; CERN) ; Tsinganis, A (CERN) ; Kokkoris, M (Natl. Tech. U., Athens) ; Michalopoulou, V (Natl. Tech. U., Athens) ; Axiotis, M (Democritos Nucl. Res. Ctr.) ; Lagoyiannis, A (Democritos Nucl. Res. Ctr.) ; Vlastou, R (Natl. Tech. U., Athens)
The$^{234}$U neutron-induced fission cross-section has been measured at incident neutron energies of 452, 550, 651 keV and 7.5, 8.7, 10 MeV using the$^{7}$Li (p, n) and the$^{2}$H(d, n) reactions, respectively, relative to the$^{235}$U(n, f ) and$^{238}$U(n, f ) reference reactions. The measurement was performed at the neutron beam facility of the National Center for Scientific Research “Demokritos”, using a set-up based on Micromegas detectors. [...]
2018 - 11 p.
- Published in : Eur. Phys. J. A 54 (2018) 7
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Neutron-induced fission cross-section measurement of 234U with quasi-monoenergetic beams in the keV and MeV range using micromegas detectors
/ Tsinganis, A (CERN) ; Kokkoris, M (Natl. Tech. U., Athens) ; Vlastou, R (Natl. Tech. U., Athens) ; Kalamara, A (Natl. Tech. U., Athens) ; Stamatopoulos, A (Natl. Tech. U., Athens) ; Kanellakopoulos, A (Natl. Tech. U., Athens) ; Lagoyannis, A (National Centre for Scientific Research ‘Demokritos’, Athens) ; Axiotis, M (National Centre for Scientific Research ‘Demokritos’, Athens)
Accurate data on neutron-induced fission cross-sections of actinides are essential for the design of advanced nuclear reactors based either on fast neutron spectra or alternative fuel cycles, as well as for the reduction of safety margins of existing and future conventional facilities. The fission cross-section of $^{234}$U was measured at incident neutron energies of 560 and 660 keV and 7.5 MeV with a setup based on ‘microbulk’ Micromegas detectors and the same samples previously used for the measurement performed at the CERN n_TOF facility (Karadimos et al., 2014). [...]
2017 - 4 p.
- Published in : EPJ Web Conf. 146 (2017) 04035
Fulltext: PDF;
In : ND 2016 International Conference on Nuclear Data for Science and Technology, Bruges, Belgium, 11 - 16 Sep 2016, pp.04035
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Probing the semi-magicity of $^{68}$Ni via the $^{3}$H($^{66}$Ni,$^{68}$Ni)p two-neutron transfer reaction in inverse kinematics
/ Butler, P et al.
- ISOLDE.
Approved: 01 December 2010.-
Status: Finished
Experiment: IS504
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10.
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Probing the semi-magicity of $^{68}$Ni via the $^{3}$H($^{66}$Ni,$^{68}$Ni)p two-neutron transfer reaction in inverse kinematics
/ Roger, T (Instituut voor Kern- en Stralingsfysica, Katholieke Universiteit Leuven, Leuven, Belgium) ; Elseviers, J (Instituut voor Kern- en Stralingsfysica, Katholieke Universiteit Leuven, Leuven, Belgium) ; Bree, N (Instituut voor Kern- en Stralingsfysica, Katholieke Universiteit Leuven, Leuven, Belgium) ; Darby, I (Instituut voor Kern- en Stralingsfysica, Katholieke Universiteit Leuven, Leuven, Belgium) ; Diriken, J (Instituut voor Kern- en Stralingsfysica, Katholieke Universiteit Leuven, Leuven, Belgium) ; Huyse, M (Instituut voor Kern- en Stralingsfysica, Katholieke Universiteit Leuven, Leuven, Belgium) ; Pauwels, D (Instituut voor Kern- en Stralingsfysica, Katholieke Universiteit Leuven, Leuven, Belgium) ; Raabe, R (Instituut voor Kern- en Stralingsfysica, Katholieke Universiteit Leuven, Leuven, Belgium) ; Radulov, D (Instituut voor Kern- en Stralingsfysica, Katholieke Universiteit Leuven, Leuven, Belgium) ; Van Duppen, P (Instituut voor Kern- en Stralingsfysica, Katholieke Universiteit Leuven, Leuven, Belgium) et al.
CERN-INTC-2010-062 ; INTC-P-281.
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2010.
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