No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.
Open microwave cavity for use in a Purcell enhancement cooling scheme
G. Nusinovich, Introduction to the Physics of Gyrotrons, Johns Hopkins Studies in Applied Physics (Johns Hopkins University Press, 2004).
A. Povilus, N. DeTal, N. Evetts, J. Fajans, W. Hardy, E. Hunter, I. Martens, F. Robicheaux, S. Shanman, C. So, X. Wang, and J. Wurtele, “Cyclotron-cavity mode resonant cooling in single component electron plasmas,” Phys. Rev. Lett. (to be published).
A. Povilus, “Cyclotron-cavity mode resonant cooling in single component electron plasmas,” Ph.D. thesis, U.C., Berkeley, 2015.
N. Evetts, “Cavity cooling of leptons for increased antihydrogen production at ALPHA,” M.S. thesis, University of British Columbia, 2015.
Microwave Transmission Circuits, edited byG. Ragan, MIT Radiation Laboratory Series (McGraw-Hill, 1948), Vol. 9.
HFSS Manual, Electromagnetics Suite Version 15.0.0, ANSYS, 2014.
R. Waldron, Theory of Guided Electromagnetic Waves (Van Nostrand Reinhold, 1970).
Colloidal Graphite, Alcohol Base, Electron Microscopy Sciences, 2015.
Article metrics loading...
cavity is described which can be used to cool lepton plasmas for potential use in synthesis of antihydrogen. The cooling scheme is an incarnation of the Purcell effect: when plasmas are coupled to a microwave
cavity, the plasma cooling rate is resonantly enhanced through increased spontaneous emission of cyclotron radiation. The cavity forms a three electrode section of a Penning-Malmberg trap and has a bulged cylindrical geometry with open ends aligned with the magnetic trapping axis. This allows plasmas to be injected and removed from the cavity without the need for moving parts while maintaining high quality factors for resonant modes. The cavity includes unique surface preparations for adjusting the cavity quality factor and achieving anti-static shielding using thin layers of nichrome and colloidal graphite, respectively. Geometric design considerations for a cavity with strong cooling power and low equilibrium plasma temperatures are discussed. Cavities of this weak-bulge design will be applicable to many situations where an open geometry is required.
Full text loading...
Most read this month