11 citations · 20 across the 5 of their papers we have counts for
5 papers
Cryogenic rf test of the first plasma etched SRF cavity
J. Upadhyay, A. Palczewski, S. Popović +4
Plasma etching has a potential to be an alternative processing technology for superconducting radio frequency (SRF) cavities. An apparatus and a method are developed for plasma etc…
Reversal of the Asymmetry in a Cylindrical Coaxial Capacitively Coupled Ar/Cl2 Plasma
J. Upadhyay, Do Im, S. Popović +3
The reduction of the asymmetry in the plasma sheath voltages of a cylindrical coaxial capacitively coupled plasma is crucial for efficient surface modification of the inner surface…
Self-bias Dependence on Process Parameters in Asymmetric Cylindrical Coaxial Capacitively Coupled Plasma
J. Upadhyay, Do Im, S. Popović +3
An rf coaxial capacitively coupled Ar/Cl2 plasma is applied to processing the inner wall of superconducting radio frequency cavities. A dc self-bias potential is established across…
Etching Mechanism of Niobium in Coaxial Ar/Cl2 RF Plasma
J. Upadhyay, Do Im, S. Popović +3
The understanding of the Ar/Cl2 plasma etching mechanism is crucial for the desired modification of inner surface of the three dimensional niobium (Nb) superconductive radio freque…
Plasma Processing of Large Curved Surfaces for SRF Cavity Modification
J. Upadhyay, Do Im, S. Popović +3
Plasma based surface modification of niobium is a promising alternative to wet etching of superconducting radio frequency (SRF) cavities. The development of the technology based on…