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Journal Articles

$$beta^-$$ decay of $$T_z$$ = +$$frac{11}{2}$$ isotopes $$^{37}$$Al and $$^{39}$$Si; Understanding Gamow-Teller strength distribution in neutron-rich nuclei

Abromeit, B.*; Tripathi, V.*; Crawford, H. L.*; Liddick, S. N.*; Yoshida, Sota*; Utsuno, Yutaka; Bender, P. C.*; Crider, B. P.*; Dungan, R.*; Fallon, P.*; et al.

Physical Review C, 100(1), p.014323_1 - 014323_14, 2019/07

no abstracts in English

Journal Articles

$$beta$$ decay of $$^{38,40}$$Si ($$T_z$$ = +5, +6) to low-lying core excited states in odd-odd $$^{38,40}$$P isotopes

Tripathi, V.*; Lubna, R. S.*; Abromeit, B.*; Crawford, H. L.*; Liddick, S. N.*; Utsuno, Yutaka; Bender, P. C.*; Crider, B. P.*; Dungan, R.*; Fallon, P.*; et al.

Physical Review C, 95(2), p.024308_1 - 024308_7, 2017/02

AA2016-0485.pdf:0.5MB

 Times Cited Count:3 Percentile:39.76(Physics, Nuclear)

no abstracts in English

Journal Articles

Nuclear technology aspects of ITER vessel-mounted diagnostics

Vayakis, G.*; Bertalot, L.*; Encheva, A.*; Walker, C.*; Brichard, B.*; Cheon, M. S.*; Chitarin, G.*; Hodgson, E.*; Ingesson, C.*; Ishikawa, Masao; et al.

Journal of Nuclear Materials, 417(1-3), p.780 - 786, 2011/10

 Times Cited Count:13 Percentile:19.73(Materials Science, Multidisciplinary)

Journal Articles

Predictive analysis of the ITER poloidal field conductor insert (PFCI) test program

Zanino, R.*; Astrov, M.*; Bagnasco, M.*; Baker, W.*; Bellina, F.*; Ciazynski, D.*; Egorov, S. A.*; Kim, K.*; Kvitkovic, J. L.*; Lacroix, B.*; et al.

IEEE Transactions on Applied Superconductivity, 17(2), p.1353 - 1357, 2007/06

 Times Cited Count:4 Percentile:66.34(Engineering, Electrical & Electronic)

The PFCI will be tested at JAEA Naka, inside the bore of the ITER Central Solenoid Model Coil. The main test program are the DC characterization of the conductor, the measurement of AC losses in conductor, the hydraulic characterization, the stability and the quench propagation, and the effects of cycling electromagnetic load. Based on and in support of this test program, an extensive campaign of predictive analysis has been initiated on a subset of the above-mentioned test program items and the results of the comparison of selected predictions from different laboratories will be presented and discussed. A sudden quench at 5.7-6.2 K and 45 kA is predicted. The computed temperature increase at the winding outlet is about 0.5 K for the pulse. These results will be compared with the experiment and used for an accurate prediction of the PF coil performance.

Journal Articles

The $$T=2$$ mirrors $$^{36}$$Ca and $$^{36}$$S; A Test for isospin symmetry of shell gaps at the driplines

Doornenbal, P.*; Reiter, P.*; Grawe, H.*; Otsuka, Takaharu*; Al-Khatib, A.*; Banu, A.*; Beck, T.*; Becker, F.*; Bednarczyk, P.*; Benzoni, G.*; et al.

Physics Letters B, 647(4), p.237 - 242, 2007/04

 Times Cited Count:26 Percentile:13.9(Astronomy & Astrophysics)

The first excited state of $$^{36}$$Ca was measured at GSI for the first time. The measured $$2^+_1$$ energy is found to be 3015(16) keV, which is lower than its mirror nucleus $$^{36}$$S by as large as 276 keV. The structure of those nuclei is studied by the shell model. It is found that those nuclei can be well described by the $$sd$$ valence space. The large energy shift between them is caused by the Thomas-Ehrman effect. We presented that the energy shift in the $$sd$$ shell region can be explained by the shell model with a phenomenological treatment of the Thomas-Ehrman effect.

Journal Articles

Implications of NbTi short-sample test results and analysis for the ITER Poloidal Field Conductor Insert (PFCI)

Zanino, R.*; Bagnasco, M.*; Baker, W.*; Bellina, F.*; Bruzzone, P.*; della Corte, A.*; Ilyin, Y.*; Martovetsky, N.*; Mitchell, N.*; Muzzi, L.*; et al.

IEEE Transactions on Applied Superconductivity, 16(2), p.886 - 889, 2006/06

 Times Cited Count:7 Percentile:54.72(Engineering, Electrical & Electronic)

As the test of the PFCI is foreseen at JAERI Naka, Japan, it is essential to consider in detail the lessons learned from the short NbTi sample tests, as well as the issues left open after them, in order to develop a suitable test program of the PFCI aimed at bridging the extrapolation gap between measured strand and future PF coil performance. Here we consider in particular the following issues: (1) the actual possibility to quench the PFCI conductor in the TCS tests before quenching the intermediate joint, (2) the question of the so-called sudden or premature quench, based on SULTAN sample results, applying a recently developed multi-solid and multi-channel extension of the Mithrandir code to a short sample analysis; (3) the feasibility of the AC losses calorimetry in the PFCI. These results show that Tcs measurement and the calorimetric measurement of AC losses will be carried out successfully. However, we need further analytic works for the problem of the sudden quench.

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