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9 - Microwave and Magnet Techniques

Published online by Cambridge University Press:  03 February 2020

Tapio O. Niinikoski
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Summary

Microwave sources and waveguide components are commercially available and therefore we shall limit ourselves to describing their physical principles and main limitations in the polarized target applications. The propagation modes and the complex propagation constants in rectangular and round guideas are derived and described. Simple waveguide components and circuits are discussed in view of control and optimization of the power, frequency and modulation for DNP. The main design principles and criteria are presented for iron core magnets and their cobalt–iron pole pieces. For superconducting solenoid and dipole magnets, the focus is in the winding accuracy. The control and protection of large superconducting magnets is also briefly discussed.

Keywords

mm wavesmicrowave tubessolid-state sourceswaveguide circuitspropagation modeswaveguide bandsiron yoke magnetreluctancesuperconducting magnetwinding accuracy.
Type
Chapter
Information
The Physics of Polarized Targets , pp. 393 - 420
Publisher: Cambridge University Press
Print publication year: 2020

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