Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Bafia, D."'
Autor:
Abdisatarov, B., Bafia, D., Murthy, A., Eremeev, G., Elsayed-Ali, H. E., Lee, J., Netepenko, A., Carlos, C. P. A., Leith, S., Rosaz, G. J., Romanenko, A., Grassellino, A.
Niobium films are a key component in modern two-dimensional superconducting qubits, yet their contribution to the total qubit decay rate is not fully understood. The presence of different layers of materials and interfaces makes it difficult to ident
Externí odkaz:
http://arxiv.org/abs/2407.08856
The onset of high field Q-slope (HFQS) around 25 MV/m prevents cavities in electropolished (EP) condition from reaching high quality factors at high gradients due to the precipitation of niobium hydrides during cooldown. These hydrides are non-superc
Externí odkaz:
http://arxiv.org/abs/2307.10396
The superconducting radio-frequency (SRF) community has shown that introducing certain impurities into high-purity niobium can improve quality factors and accelerating gradients. We question why some impurities improve RF performance while others hin
Externí odkaz:
http://arxiv.org/abs/2307.06259
Autor:
Cravatta, A., Arkan, T., Bafia, D., Kaluzny, J., Posen, S., Vennekate, J., Drury, M., Aderhold, S., Checchin, M., Gonnella, D., Hogan, J., Maniscalco, J., Nelson, J., Porter, R., Zacarias, L.
Multipacting (MP) is a phenomenon which can affect stability in particle accelerators and limit performance in superconducting radio frequency cavities. In the TESLA shaped, 1.3 GHz, 9-cell cavities used in the LCLS-II (L2) and LCLS-II-HE (HE) projec
Externí odkaz:
http://arxiv.org/abs/2306.17274
Autor:
Arkan, T., Kaluzny, J., Bafia, D., Bice, D., Blowers, J., Cravatta, A., Checchin, M., Giaccone, B., Grimm, C., Hartsell, B., Martinello, M., Nicol, T., Orlov, Y., Posen, S.
The Linac Coherent Light Source (LCLS) is an X-ray science facility at SLAC National Accelerator Laboratory. The LCLS-II project (an upgrade to LCLS) is in the commissioning phase; the LCLS-II-HE (High Energy) project is another upgrade to the facili
Externí odkaz:
http://arxiv.org/abs/2208.12780
Autor:
Zhu, S., Crisa, F., Bal, M., Murthy, A. A., Lee, J., Sung, Z., Lunin, A., Frolov, D., Pilipenko, R., Bafia, D., Mitra, A., Romanenko, A., Grassellino, A.
We present measurements and simulations of superconducting Nb co-planar waveguide resonators on sapphire substrate down to millikelvin temperature range with different readout powers. In the high temperature regime, we demonstrate that the Nb film re
Externí odkaz:
http://arxiv.org/abs/2207.13024
Autor:
Belomestnykh, S., Posen, S., Bafia, D., Balachandran, S., Bertucci, M., Burrill, A., Cano, A., Checchin, M., Ciovati, G., Cooley, L. D., Semione, G. Dalla Lana, Delayen, J., Eremeev, G., Furuta, F., Gerigk, F., Giaccone, B., Gonnella, D., Grassellino, A., Gurevich, A., Hillert, W., Iavarone, M., Knobloch, J., Kubo, T., Kwok, W. K., Laxdal, R., Lee, P. J., Liepe, M., Martinello, M., Melnychuk, O. S., Nassiri, A., Netepenko, A., Padamsee, H., Pagani, C., Paparella, R., Pudasaini, U., Reece, C. E., Reschke, D., Romanenko, A., Ross, M., Saito, K., Sauls, J., Seidman, D. N., Solyak, N., Sung, Z., Umemori, K., Valente-Feliciano, A. -M., Delsolaro, W. Venturini, Walker, N., Weise, H., Welp, U., Wenskat, M., Wu, G., Xi, X. X., Yakovlev, V., Yamamoto, A., Zasadzinski, J.
Radio frequency superconductivity is a cornerstone technology for many future HEP particle accelerators and experiments from colliders to proton drivers for neutrino facilities to searches for dark matter. While the performance of superconducting RF
Externí odkaz:
http://arxiv.org/abs/2204.01178
Autor:
Posen, S., Cravatta, A., Checchin, M., Aderhold, S., Adolphsen, C., Arkan, T., Bafia, D., Benwell, A., Bice, D., Chase, B., Contreras-Martinez, C., Dootlittle, L., Fuerst, J., Gonnella, D., Grassellino, A., Grimm, C., Hansen, B., Harms, E., Hartsell, B., Hays, G., Holzbauer, J., Hoobler, S., Kaluzny, J., Khabiboulline, T., Kucera, M., Lambert, D., Legg, R., Lewis, F., Makara, J., Maniar, H., Maniscalco, J. T., Martinello, M., Nelson, J., Paiagua, S., Pischalnikov, Y., Prieto, P., Reid, J., Ross, M., Serrano, C., Solyak, N., Syed, A., Sun, D., Tatkowski, G., Wang, R., White, M., Zacarias, L.
An 8-cavity, 1.3 GHz, LCLS-II-HE cryomodule was assembled and tested at Fermilab to verify performance before the start of production. Its cavities were processed with a novel nitrogen doping treatment to improve gradient performance. The cryomodule
Externí odkaz:
http://arxiv.org/abs/2110.14580
Superconducting radio-frequency (SRF) niobium cavities are the modern means of particle acceleration and an enabling technology for record coherence superconducting quantum systems and ultra-sensitive searches for new physics. Here, we report a syste
Externí odkaz:
http://arxiv.org/abs/2103.10601
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