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RIS citation export for FRCAA6: Investigation on 1, 3 and 9-Cell SRF Elliptical Cavities made of Large Grain Niobium

AU  - Dohmae, T.
AU  - Inoue, H.
AU  - Kubo, T.
AU  - Shimizu, H.
AU  - Umemori, K.
AU  - Watanabe, Y.
AU  - Yamanaka, M.
ED  - Michel, Peter
ED  - Arnold, André
ED  - Schaa, Volker RW
TI  - Investigation on 1, 3 and 9-Cell SRF Elliptical Cavities made of Large Grain Niobium
J2  - Proc. of SRF2019, Dresden, Germany, 30 June-05 July 2019
CY  - Dresden, Germany
T2  - International Conference on RF Superconductivity
T3  - 19
LA  - english
AB  - Large grain (LG) niobium is directly sliced from niobium ingot. LG niobium sheet has larger crystal size than that of fine grain (FG) niobium which is forged and rolled, and normally used as the SRF cavity materials. It is expected that higher Q-value can be achieved using LG niobium sheet. And, effective reduction in material cost can be also achieved by LG niobium since forge and rolling process are skipped. On the other hand, there are some difficulties in fabrication since it has large deformation due to strong anisotropy. Cavity fabrication facility in KEK has been fabricated 1, 3 and 9-cell elliptical cavities made by LG niobium and RF tested in vertical cryostat. In this talk, the fabrication process and test results from these cavities will be presented.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 1213
EP  - 1215
KW  - cavity
KW  - niobium
KW  - cryomodule
KW  - radio-frequency
DA  - 2019/08
PY  - 2019
SN  - 978-3-95450-211-0
DO  - doi:10.18429/JACoW-SRF2019-FRCAA6
UR  - http://jacow.org/srf2019/papers/frcaa6.pdf
ER  -