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@inproceedings{konomi:srf2023-tuptb049, author = {T. Konomi and K. Hara and Y. Honda and K. Hosoyama and H. Inoue and E. Kako and Y. Kondo and M. Masuzawa and M. Omet and T. Takatomi and A. Terashima and K. Tsuchiya and R. Ueki and K. Umemori and X. Wang}, % author = {T. Konomi and K. Hara and Y. Honda and K. Hosoyama and H. Inoue and E. Kako and others}, % author = {T. Konomi and others}, title = {{Horizontal Test Results of 1.3 GHz Superconducting RF Gun #2 at KEK}}, % booktitle = {Proc. SRF'23}, booktitle = {Proc. 21th Int. Conf. RF Supercond. (SRF'23)}, pages = {540--544}, eid = {TUPTB049}, language = {english}, keywords = {gun, cavity, cathode, SRF, laser}, venue = {Grand Rapids, MI, USA}, series = {International Conference on RF Superconductivity}, number = {21}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {09}, year = {2023}, issn = {2673-5504}, isbn = {978-3-95450-234-9}, doi = {10.18429/JACoW-SRF2023-TUPTB049}, url = {https://jacow.org/srf2023/papers/tuptb049.pdf}, abstract = {{Superconducting radio-frequency (SRF) electron guns are attractive for delivery of beams at a high bunch repetition rate with a high accelerating field. KEK has been developing the SRF gun to demonstrate basic performance. The SRF gun consists of 1.3 GHz and 1.5 cell SRF gun cavity and K2CsSb photocathode coated on 2K cathode plug. In the vertical test, the surface peak electric field and the surface peak magnetic field reached to 75 MV/m and 170 mT respectively. The SRF gun was installed to horizontal multipurpose cryostat equipped with a superconducting solenoid, photocathode preparation chamber and beam diagnostic line. The results showed the peak surface electric field degraded to 42 MV/m. We suspect that cavity was contaminated during assembly. In this presentation, we will present the high gradient performance in vertical and horizontal test and individual test for each beam line components.}}, }