38 Papers
101 Citations
M. Blank is an academic researcher from Massachusetts Institute of Technology. The author has contributed to research in topics: Gyrotron & Beam (structure). The author has an hindex of 10, co-authored 38 publications.
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Papers
Solid-state dynamic nuclear polarization at 263 GHz: spectrometer design and experimental results.
Melanie Rosay,Leo Tometich,Shane Pawsey,Reto Bader,Robert Schauwecker,M. Blank,Philipp Borchard,Stephen Cauffman,Kevin Felch,Ralph T. Weber,Richard J. Temkin,Robert G. Griffin,Werner E. Maas +12 more
TL;DR: The experimental parameters affecting the DNP efficiency are characterized: the magnetic field dependence, temperature dependence and polarization build-up times, microwave power dependence, sample heating effects, and spinning frequency dependence of the D NP signal enhancement.
Demonstration of a high-power long-pulse 140-GHz gyrotron oscillator
M. Blank,Kevin Felch,Philipp Borchard,P. Cahalan,Stephen Cauffman,Tak Sum Chu,Howard Roberts Jory +6 more
TL;DR: In this paper, a high-power long-pulse 140 GHz gyrotron oscillator has been designed, constructed, and tested with peak output powers up to 930 kW at 34% efficiency at 5-ms pulse lengths.
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Development and demonstration of high-average power W-band gyro-amplifiers for radar applications
M. Blank,Kevin Felch,B.G. James,Philipp Borchard,P. Cahalan,Tak Sum Chu,Howard Roberts Jory,B.G. Danly,Baruch Levush,Jeffrey P. Calame,Khanh T. Nguyen,Dean E. Pershing +11 more
TL;DR: In this paper, the results of a focused program to develop high-power W-band gyro-amplifiers, which culminated in the demonstration of record average output powers from amplifiers in this band, are described.
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Experimental demonstration of W-band gyroklystron amplifiers with improved gain and efficiency
TL;DR: The experimental demonstrations of two W-band gyroklystron amplifiers are reported in this paper, where a four-cavity amplifier operating near 93 GHz achieved 84kW peak output power and 34% efficiency for a 56-kV 1.4-A electron beam.
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Design of a 3-MW 140-GHz gyrotron with a coaxial cavity
Michael Read,Gregory S. Nusinovich,Olgierd Dumbrajs,G. Bird,J.P. Hogge,K.E. Kreischer,M. Blank +6 more
TL;DR: In this article, a 3MW 140 GHz gyrotron based on the use of a coaxial cavity is given, and the cavity mode is chosen so that the ohmic heating on both the inner and outer conductors would be low enough for CW operation.
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