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The 2015 International Workshop on Polarized Sources, Targets & Polarimetry

13–18 Sept 2015
RUB
Europe/Berlin timezone

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Session

Session 12

17 Sept 2015, 14:00
VZ 04 Saal 1 (RUB)

VZ 04 Saal 1

RUB

Ruhr-Universität Bochum Universitätsstr. 150 D-44780 Bochum/Germany

Conveners

Session 12

  • Ben van den Brandt (Paul Scherrer Institute, 5232 Villigen, Switzerland)

Presentation materials

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  1. 9. Begrüßung
    Werner Peter Meyer (Institut fuer Experimentalphysik I)
    17/09/2015, 14:00
    Polarized Targets
  2. 57. The principles of dynamic nuclear polarisation with strong microwave fields. From the solid effect to NOVEL and ISE
    Prof. Tom Wenckebach (Paul Scherrer Institute, CH-5232 Villigen)
    17/09/2015, 14:15
    Talk
    Dynamic Nuclear Polarization (DNP) uses microwave power to transfer the -- high -- polarization of electron spins to nuclear spins. To speed up this transfer, it is often attractive to increase the microwave power, i.e., increase the strength of the microwave field. This talk discusses how one passes through different regimes when doing so. At low power the solid effect and thermal mixing...
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  3. 56. Dynamic Nuclear Polarization using short-lived photo-excited triplet states: experiments and applications
    Dr Patrick Hautle (Paul Scherrer Institute, CH-5232 Villigen)
    17/09/2015, 14:45
    Talk
    In DNP experiments the high polarization of an electronic spin system is transferred by suitable microwave irradiation to the nuclear spin system. In usual classical schemes ground state paramagnetic centers are introduced into the sample as dopants and their electron spin polarization is determined thermally. This requires temperatures of 1K or lower and a magnetic field of several Tesla. As...
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