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The TOFOR neutron spectrometer and its first use at JET

DOI: 10.1063/1.2219422 Authors: M. G. Johnson, L. Giacomelli, A. Hjalmarsson, M. Weiszflog, E. Sundén, S. Conroy, G. Ericsson, C. Hellesen, J. Källne, E. Ronchi, H. Sjöstrand, G. Gorini, M. Tardocchi, A. Murari, S. Popovichev, J. Sousa, R. Pereira, Á. Combo, N. Cruz...

Observation of dynamic nuclear polarization echoes

DOI: 10.1126/sciadv.adr2420 Authors: N. Wili, A. B. Nielsen, José P. Carvalho, Niels Chr Nielsen Abstract: It is demonstrated that the time evolution of the electron-nuclear polarization transfer process during pulsed dynamic nuclear polarization (DNP) can be reversed...