Felch, K., et al. First tests of a 527 GHz gyrotron for dynamic nuclear polarization. in Vacuum Electronics Conference (IVEC), 2013 IEEE 14th International. 2013.
A gyrotron operating at the second cyclotron harmonic in a magnetic field of 9.7 T has produced a CW output power of 25 W at 527 GHz. The gyrotron is now being employed in Dynamic Nuclear Polarization (DNP) Applications. The gyrotron design and results of the tests are presented.
High Frequency Dynamic Nuclear Polarization
From The DNP-NMR Blog:
High Frequency Dynamic Nuclear Polarization
Ni, Q.Z., et al., High Frequency Dynamic Nuclear Polarization. Acc Chem Res, 2013.
http://www.ncbi.nlm.nih.gov/pubmed/23597038
nmrlearner
News from NMR blogs
0
06-07-2013 10:42 PM
Dynamic Nuclear Polarization Key Topic At 54th ENC Conference
From The DNP-NMR Blog:
Dynamic Nuclear Polarization Key Topic At 54th ENC Conference
Dynamic Nuclear Polarization Key Topic At 54thENC Conference
It was great to see many familiar faces at this year’s ENC Conference in beautiful Asilomar. For those who couldn’t make it this year, I’d like to summarize some key takeaways:
nmrlearner
News from NMR blogs
0
05-02-2013 01:10 AM
Dynamic Nuclear Polarization of Sedimented Solutes
From the The DNP-NMR Blog:
Dynamic Nuclear Polarization of Sedimented Solutes
Ravera, E., et al., Dynamic Nuclear Polarization of Sedimented Solutes. J. Am. Chem. Soc., 2013. 135(5): p. 1641-1644.
http://dx.doi.org/10.1021/ja312553b
nmrlearner
News from NMR blogs
0
04-15-2013 08:52 AM
Solid state nuclear magnetic resonance with magic-angle spinning and dynamic nuclear polarization below 25K
Solid state nuclear magnetic resonance with magic-angle spinning and dynamic nuclear polarization below 25K
January 2013
Publication year: 2013
Source:Journal of Magnetic Resonance, Volume 226</br>
</br>
We describe an apparatus for solid state nuclear magnetic resonance (NMR) with dynamic nuclear polarization (DNP) and magic-angle spinning (MAS) at 20–25K and 9.4Tesla. The MAS NMR probe uses helium to cool the sample space and nitrogen gas for MAS drive and bearings, as described earlier , but also includes a corrugated waveguide for transmission of microwaves from...
nmrlearner
Journal club
0
12-15-2012 09:51 AM
Solid state nuclear magnetic resonance with magic-angle spinning and dynamic nuclear polarization below 25 K
Solid state nuclear magnetic resonance with magic-angle spinning and dynamic nuclear polarization below 25 K
Available online 20 November 2012
Publication year: 2012
Source:Journal of Magnetic Resonance</br>
</br>
We describe an apparatus for solid state nuclear magnetic resonance (NMR) with dynamic nuclear polarization (DNP) and magic-angle spinning (MAS) at 20-25 K and 9.4 Tesla. The MAS NMR probe uses helium to cool the sample space and nitrogen gas for MAS drive and bearings, as described earlier (Thurber et al., J. Magn. Reson. 2008) , but also includes a...
nmrlearner
Journal club
0
12-01-2012 06:10 PM
Solid state nuclear magnetic resonance with magic-angle spinning and dynamic nuclear polarization below 25 K
Solid state nuclear magnetic resonance with magic-angle spinning and dynamic nuclear polarization below 25 K
Publication year: 2012
Source:Journal of Magnetic Resonance</br>
Kent R. Thurber, Alexey Potapov, Wai-Ming Yau, Robert Tycko</br>
We describe an apparatus for solid state nuclear magnetic resonance (NMR) with dynamic nuclear polarization (DNP) and magic-angle spinning (MAS) at 20-25 K and 9.4 Tesla. The MAS NMR probe uses helium to cool the sample space and nitrogen gas for MAS drive and bearings, as described earlier (Thurber et al., J. Magn. Reson. 2008) ,...
nmrlearner
Journal club
0
11-21-2012 04:33 AM
A 250 GHz Gyrotron with a 3 GHz Tuning Bandwidth for Dynamic Nuclear Polarization
A 250 GHz Gyrotron with a 3 GHz Tuning Bandwidth for Dynamic Nuclear Polarization
Publication year: 2012
Source:Journal of Magnetic Resonance</br>
Alexander B. Barnes, Emilio A. Nanni, Judith Herzfeld, Robert G. Griffin, Richard J. Temkin</br>
We describe the design and implementation of a novel tunable 250 GHz gyrotron oscillator with >10 W output power over most of a 3 GHz band and >35 W peak power. The tuning bandwidth and power are sufficient to generate a >1 MHz nutation frequency across the entire nitroxide EPR lineshape for cross effect DNP, as well as to...
nmrlearner
Journal club
0
03-30-2012 10:45 AM
Surface Enhanced NMR Spectroscopy by Dynamic Nuclear Polarization
Surface Enhanced NMR Spectroscopy by Dynamic Nuclear Polarization
Anne Lesage, Moreno Lelli, David Gajan, Marc A. Caporini, Veronika Vitzthum, Pascal Mie?ville, Johan Alauzun, Arthur Roussey, Chloe? Thieuleux, Ahmad Medhi, Geoffrey Bodenhausen, Christophe Cope?ret and Lyndon Emsley
http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/jacsat/0/jacsat.ahead-of-print/ja104771z/aop/images/medium/ja-2010-04771z_0004.gif
Journal of the American Chemical Society
DOI: 10.1021/ja104771z
http://feeds.feedburner.com/~ff/acs/jacsat?d=yIl2AUoC8zA...