Coudert Brothers
Glass antenna for RF-ion source operation
 An antenna comprises a plurality of small diameter conductive wires disposed in a dielectric tube. The number and dimensions of the conductive wires is selected to improve the RF resistance of the antenna while also facilitating a reduction in thermal gradients that may create thermal stresses on the dielectric tube. The antenna may be mounted in a vacuum system using a low-stress antenna assembly that cushions and protects the dielectric tube from shock and mechanical vibration while also permitting convenient electrical and coolant connections to the antenna. 
The Regents of the University of California
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H01Q
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Yung-Hee Yvette Ka Ngo Luke T.
Lee Leung Perkins