Zobrazeno 1 - 10
of 337
pro vyhledávání: '"Furuta F"'
Autor:
Chouhan, V., Bice, D., Burk, D., Chandrasekaran, S., Cravatta, A., Dubiel, P., Eremeev, G. V., Furuta, F., Melnychuk, O., Netepenko, A., Ng, M. K., Ozelis, J., Park, H., Ring, T., Wu, G., Guilfoyle, B., Kelly, M. P., Reid, T.
Electropolishing (EP) of 1.3 GHz niobium superconducting RF cavities is conducted to achieve a desired smooth and contaminant-free surface that yields good RF performance. Achieving a smooth surface of a large-sized elliptical cavity with the standar
Externí odkaz:
http://arxiv.org/abs/2401.15157
Autor:
McGee, K., Kim, S., Elliott, K., Ganshyn, A., Hartung, W., Ostroumov, P., Taylor, A., Xu, T., Martinello, M., Eremeev, G. V., Netepenko, A., Furuta, F., Melnychuk, O., Kelly, M. P., Guilfoyle, B., Reid, T.
Nitrogen-doping and furnace-baking are advanced high-Q0 recipes developed for 1.3 GHz TESLA-type cavities. These treatments will significantly benefit the high-Q0 linear accelerator community if they can be successfully adapted to different cavity st
Externí odkaz:
http://arxiv.org/abs/2307.11082
Traveling wave SRF cavity is a new technology and requires a multi-stage process for development. Conceptual designs have been proposed to adopt TW resonance in an SRF cavity The early stages of developments have been funded by several SBIR grants to
Externí odkaz:
http://arxiv.org/abs/2307.09407
Autor:
McGee, K., Kim, S-H., Ostroumov, P., Eremeev, G., Furuta, F., Martinello, M., Melnychuk, O., Netepenko, A.
Upcoming projects requiring high-Q ~650 MHz medium-to-high-${\beta}$ elliptical cavities drive a need to understand magnetic RF loss mechanisms and mitigations in greater detail. High-temperature annealing and fast-cooldowns have proven effective tec
Externí odkaz:
http://arxiv.org/abs/2307.05813
Autor:
Helsper, J., Chandrasekaran, S., Solyak, N., Kazakov, S., Premo, K., Wu, G., Furuta, F., Ozelis, J., Hanna, B.
Six 650 MHz high-power couplers will be integrated into the prototype High Beta 650 MHz (HB650) cryomodule for the PIP-II project at Fermilab. The design of the coupler is described, including design optimizations from the previous generation. This p
Externí odkaz:
http://arxiv.org/abs/2209.01283
Autor:
Chouhan, V., Bice, D., Furuta, F., Martinello, M., Ng, M. K., Park, H., Ring, T., Wu, G., Guilfoyle, B., Kelly, M. P., Reid, T.
The PIP II linear accelerator includes different types of niobium SRF cavities including 650 MHz elliptical low (0.61) and high (0.92) beta cavities. The elliptical cavity surface is processed with the electropolishing method. The elliptical cavities
Externí odkaz:
http://arxiv.org/abs/2208.04424
Cold electropolishing (EP) of a nitrogen-doped (N-doped) niobium (Nb) superconducting RF (SRF) cavity was found to improve its quality factor. In order to understand the effect of EP temperature on N-doped and undoped surfaces, a systematic EP study
Externí odkaz:
http://arxiv.org/abs/2208.04392
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:
Martinello, M., Bice, D. J., Boffo, C., Chandrasekeran, S. K., Eremeev, G. V., Furuta, F., Grassellino, A., Melnychuk, O., Sergatskov, D. A., Wu, G., Reid, T. C.
Publikováno v:
J. Appl. Phys. 130, 174501 (2021)
High Q-factors are of utmost importance to minimize losses of superconducting radio-frequency cavities deployed in continuous wave particle accelerators. This study elucidates the surface treatment that can maximize the Q-factors in high-beta 650 MHz
Externí odkaz:
http://arxiv.org/abs/2111.01894
Autor:
McGee, K., Kim, S., Elliott, K., Ganshyn, A., Hartung, W., Ostroumov, P., Taylor, A., Xu, T., Martinello, M., Eremeev, G.V., Netepenko, A., Furuta, F., Melnychuk, O., Kelly, M.P., Guilfoyle, B., Reid, T.
Publikováno v:
In Nuclear Inst. and Methods in Physics Research, A February 2024 1059
