JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
@inproceedings{ji:napac2022-moye3,
author = {Y. Ji and R. Dhuley and C.J. Edwards and V. Korampally and D. Mihalcea and O. Mohsen and P. Piot and I. Salehinia and J.C.T. Thangaraj},
% author = {Y. Ji and R. Dhuley and C.J. Edwards and V. Korampally and D. Mihalcea and O. Mohsen and others},
% author = {Y. Ji and others},
title = {{Experiments on a Conduction Cooled Superconducting Radio Frequency Cavity with Field Emission Cathode}},
& booktitle = {Proc. NAPAC'22},
booktitle = {Proc. 5th Int. Particle Accel. Conf. (NAPAC'22)},
pages = {16--18},
eid = {MOYE3},
language = {english},
keywords = {cavity, niobium, experiment, SRF, accelerating-gradient},
venue = {Albuquerque, NM, USA},
series = {International Particle Accelerator Conference},
number = {5},
publisher = {JACoW Publishing, Geneva, Switzerland},
month = {10},
year = {2022},
issn = {2673-7000},
isbn = {978-3-95450-232-5},
doi = {10.18429/JACoW-NAPAC2022-MOYE3},
url = {https://jacow.org/napac2022/papers/moye3.pdf},
abstract = {{To achieve Ampere-class electron beam accelerators the pulse delivery rate need to be much higher than the typical photo injector repetition rate of the order of a few kilohertz. We propose here an injector which can, in principle, generate electron bunches at the same rate as the operating RF frequency. A conduction-cooled superconducting radio frequency (SRF) cavity operating in the CW mode and housing a field emission element at its region of high axial electric field can be a viable method of generating high-repetition-rate electron bunches. In this paper, we report the development and experiments on a conduction-cooled Nb₃Sn cavity with a niobium rod intended as a field emitter support. The initial experiments demonstrate ~0.4 MV/m average accelerating gradient, which is equivalent of peak gradient of 3.2 MV/m. The measured RF cavity quality factor is 1.4 × 10⁸ slightly above our goal. The achieved field gradient is limited by the relatively low input RF power and by the poor coupling between the external power supply and the RF cavity. With ideal coupling the field gradient can be as high as 0.6 MV/m still below our goal of about 1 MV/m}},
}