Plasma treatment of bulk niobium surface for superconducting rf cavities: Optimization of the experimental conditions on flat samples M Rašković, J Upadhyay, L Vušković, S Popović, AM Valente-Feliciano, ...
Physical Review Special Topics-Accelerators and Beams 13 (11), 112001, 2010
21 2010 Plasma processing of large curved surfaces for superconducting rf cavity modification J Upadhyay, D Im, S Popović, AM Valente-Feliciano, L Phillips, ...
Physical Review Special Topics-Accelerators and Beams 17 (12), 122001, 2014
14 2014 High etching rates of bulk Nb in microwave discharge M Rašković, S Popović, J Upadhyay, L Vušković, L Phillips, ...
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films 27 (2 …, 2009
14 2009 Continuous and coordinated efforts of structure wakefield acceleration (SWFA) development for an energy frontier machine C Jing, J Power, J Shao, G Ha, P Piot, X Lu, A Zholents, A Kanareykin, ...
arXiv preprint arXiv:2203.08275, 2022
12 2022 Etching mechanism of niobium in coaxial Ar/Cl2 radio frequency plasma J Upadhyay, D Im, S Popović, AM Valente-Feliciano, L Phillips, ...
Journal of Applied Physics 117 (11), 2015
12 2015 Apparatus and method for plasma processing of SRF cavities J Upadhyay, D Im, J Peshl, M Bašović, S Popović, AM Valente-Feliciano, ...
Nuclear Instruments and Methods in Physics Research Section A: Accelerators …, 2016
11 2016 Effect of self-bias on cylindrical capacitive discharge for processing of inner walls of tubular structures—Case of SRF cavities J Upadhyay, J Peshl, S Popović, AM Valente-Feliciano, L Vušković
AIP advances 8 (8), 2018
9 2018 Reversal of the asymmetry in a cylindrical coaxial capacitively coupled Ar/Cl2 plasma J Upadhyay, D Im, S Popović, L Vušković, AM Valente-Feliciano, ...
Journal of Vacuum Science & Technology A 33 (6), 2015
7 2015 Plasma processing of large surfaces with application to SRF cavity modification J Upadhyay, S Popovic, L Vuskovic, D Im, AM Valente, H Phillips
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA …, 2013
5 2013 Large-volume resonant microwave discharge for plasma cleaning of a CEBAF 5-cell SRF cavity J Mammosser, S Ahmed, K Macha, J Upadhyay, M Nikolić, S Popović
Proc. of IPAC 2012, 2012
5 2012 Cryogenic rf test of the first SRF cavity etched in an rf Ar/Cl2 plasma J Upadhyay, A Palczewski, S Popović, AM Valente-Feliciano, D Im, ...
AIP Advances 7 (12), 2017
4 2017 On a dielectric-barrier and a microwave-cavity discharge in synchronized operation—the case of a helium/oxygen mixture M Nikolic, S Popovic, J Upadhyay, L Vuskovic, R Leiweke, B Ganguly
Plasma Sources Science and Technology 21 (1), 015004, 2012
4 2012 Resonant-frequency discharge in a multi-cell radio frequency cavity S Popović, J Upadhyay, J Mammosser, M Nikolić, L Vušković
Journal of Applied Physics 116 (17), 2014
3 2014 Plasma etching rates and surface composition of bulk niobium treated in ar/cl2 microwave discharge M Rašković, J Upadhyay, S Popović, L Vušković, AM Valente-Feliciano, ...
Proceedings of EPAC08, 2008
3 2008 Design of a ceramic enhanced normal conducting standing wave accelerator structure for higher shunt impedance J Upadhyay, H Xu, K Nichols, JW Lewellen
Nuclear Instruments and Methods in Physics Research Section A: Accelerators …, 2022
2 2022 Self-bias Dependence on Process Parameters in Asymmetric Cylindrical Coaxial Capacitively Coupled Plasma J Upadhyay, D Im, S Popović, AM Valente-Feliciano, L Phillips, ...
arXiv preprint arXiv:1506.05167, 2015
2 2015 Study for Alternative Cavity wall and Inductive Insert Material CE Taylor, CF Chen, TW Hall, E Henestroza, J Lyles, J Upadhyay, ...
Proceedings of the 2021 International Particle Accelerator Conference …, 2021
1 2021 Radio frequency plasma method for uniform surface processing of rf cavities and other three-dimensional structures S Popovic, J Upadhyay, L Vuskovic, HL Phillips, AM Valente-Feliciano
US Patent 9,852,891, 2017
1 2017 The Effect of Process Parameters on the Surface Properties of Niobium During Plasma Etching J Peshl, S Popović, J Upadhyay, AM Valente-Feliciano, L Vušković
18th Int. Conf. on RF Superconductivity (SRF'17), Lanzhou, China, 628-630, 2017
1 2017 Plasma processing of superconducting radio frequency cavities J Upadhyay
Old Dominion University, 2016
1 2016