Bratman, V.L., et al., THz Gyrotron and BWO Designed for Operation in DNP-NMR Spectrometer Magnet. J Infrared Milli Terahz Waves, 2013. 34(12): p. 837-846.
Dynamic nuclear polarization (DNP) in high-field nuclearmagnetic resonance (NMR) spectroscopy requires medium-power terahertz radiation, which nowadays can be provided basically by gyrotrons with superconducting magnets. As the electron cyclotron frequency is very close to the frequency of electron paramagnetic resonance for the samemagnetic field, under certain conditions the gyrotron can be installed inside the same solenoid used for NMR spectrometer. This eliminates the need for an additional superconducting magnet, results in a shorter terahertz transmission line, and can make DNP systems practical. In addition to an extremely low-voltage gyrotron (“gyrotrino”), we analyze also advantages of strong magnetic field for a slow-wave electron device as an alternative terahertz source.
Manufacturing of a 263 GHz continuously tunable gyrotron
From The DNP-NMR Blog:
Manufacturing of a 263 GHz continuously tunable gyrotron
Rozier, Y., et al. Manufacturing of a 263 GHz continuously tunable gyrotron. in Vacuum Electronics Conference (IVEC), 2013 IEEE 14th International. 2013.
http://dx.doi.org/10.1109/IVEC.2013.6571071
nmrlearner
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09-16-2013 05:07 PM
First tests of a 527 GHz gyrotron for dynamic nuclear polarization
From The DNP-NMR Blog:
First tests of a 527 GHz gyrotron for dynamic nuclear polarization
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.
http://dx.doi.org/10.1109/IVEC.2013.6571048
nmrlearner
News from NMR blogs
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09-02-2013 10:45 PM
PostDoc position for gyrotron DNP at EPFL, Lausanne
From The DNP-NMR Blog:
PostDoc position for gyrotron DNP at EPFL, Lausanne
This came through the AMPERE MAGNETIC RESONANCE list:
A post-doc postion is now opened for gyrotron-DNP and related DNP methods.
nmrlearner
News from NMR blogs
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08-27-2013 09:51 AM
Gyrotron DNP NMR, post-doc position - Telejob
Gyrotron DNP NMR, post-doc position
Inserat Nr. 21707
Vom Mittwoch, 12. September 2012
Arbeitsort Lausanne
Arbeitsbeginn sofort
Vertragsdauer 4 Jahre
Anstellung 100%
EPFL enjoys a strong position in Dynamic Nuclear Polarization for NMR, because it has
developed original designs using several approaches. A campus-wide collaboration in
particular with the CRPP (fusion research center, specialized in gyrotrons) has allowed us to
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09-22-2012 09:38 PM
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...
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Journal club
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03-30-2012 10:45 AM
[NMR paper] Dynamics of a de novo designed three-helix bundle protein studied by 15N, 13C, and 2H
Dynamics of a de novo designed three-helix bundle protein studied by 15N, 13C, and 2H NMR relaxation methods.
Related Articles Dynamics of a de novo designed three-helix bundle protein studied by 15N, 13C, and 2H NMR relaxation methods.
Biochemistry. 2001 Aug 14;40(32):9560-9
Authors: Walsh ST, Lee AL, DeGrado WF, Wand AJ
Understanding how the amino acid sequence of a polypeptide chain specifies a unique, functional three-dimensional structure remains an important goal, especially in the context of the emerging discipline of de novo protein...
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Journal club
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11-19-2010 08:44 PM
[NMR paper] A mini-protein designed by removing a module from barnase: molecular modeling and NMR
A mini-protein designed by removing a module from barnase: molecular modeling and NMR measurements of the conformation.
Related Articles A mini-protein designed by removing a module from barnase: molecular modeling and NMR measurements of the conformation.
Protein Eng. 1999 Aug;12(8):673-80
Authors: Takahashi K, Noguti T, Hojo H, Yamauchi K, Kinoshita M, Aimoto S, Ohkubo T, G? M
A globular domain can be decomposed into compact modules consisting of contiguous 10-30 amino acid residues. The correlation between modules and exons observed in...
THz Gyrotron and BWO Designed for Operation in DNP-NMR Spectrometer Magnet
Linear Mode
