TY  - CONF
AU  - Vennekate, H.
AU  - Castilla, A.
AU  - Cheng, G.
AU  - Ciovati, G.
AU  - Guo, J.
AU  - Hannon, F.E.
AU  - Harding, K.A.
AU  - Henry, J.
AU  - Packard, D.A.
AU  - Pudasaini, U.
AU  - Rathke, J.
AU  - Rimmer, R.A.
AU  - Schultheiss, T.
ED  - Saito, Kenji
ED  - Xu, Ting
ED  - Sakamoto, Naruhiko
ED  - Schaa, Volker R.W.
ED  - Thomas, Paul W.
TI  - On the Way to a 10 MeV, Conduction-Cooled, Compact SRF Accelerator
J2  - Proc. of SRF2023, Grand Rapids, MI, USA, 25-30 June 2023
CY  - Grand Rapids, MI, USA
T2  - International Conference on RF Superconductivity
T3  - 21
LA  - english
AB  - After the success of designing a compact 1 MeV, 1 MW accelerator based on conduction-cooled SRF, Jefferson Lab is now pursuing a concept to provide a tenfold increase of the beam energy. The higher energy significantly extends the range of applications for environmental remediation and industry in general. The obvious challenge for SRF is to move from a single-cell to a multicell cavity while maintaining high efficiency and the ability to operate the machine without a complex cryogenic plant. The contribution presents the latest results of this design study with respect to its centerpiece, a Nb₃Sn coated 915 MHz five-cell cavity and its corresponding RF components, i.e. FPC and HOM absorber, as well as the conduction-cooling concept based on commercially available cryocoolers.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 471
EP  - 476
KW  - cavity
KW  - SRF
KW  - electron
KW  - cryogenics
KW  - simulation
DA  - 2023/09
PY  - 2023
SN  - 2673-5504
SN  - 978-3-95450-234-9
DO  - doi:10.18429/JACoW-SRF2023-TUPTB033
UR  - https://jacow.org/srf2023/papers/tuptb033.pdf
ER  - 

TY  - CONF
AU  - Wang, H.
AU  - Anderson, J.P.
AU  - Jordan, K.
AU  - Moeller, C.P.
AU  - Rimmer, R.A.
AU  - Thackston, K.A.
ED  - Saito, Kenji
ED  - Xu, Ting
ED  - Sakamoto, Naruhiko
ED  - Schaa, Volker R.W.
ED  - Thomas, Paul W.
TI  - Demonstration of Magnetron as an Alternative RF Source for SRF Accelerators
J2  - Proc. of SRF2023, Grand Rapids, MI, USA, 25-30 June 2023
CY  - Grand Rapids, MI, USA
T2  - International Conference on RF Superconductivity
T3  - 21
LA  - english
AB  - Magnetron has been considered as alternate high-efficiency, low-cost RF sources for linacs and storage rings [1] for national labs and industrial applications. After the demonstration of magnetrons power to drive and combine for a radio frequency cavity at 2450 MHz in CW mode, we have used trim coils adding to a water-cooled magnetron and amplitude modulation feedback to further suppress the side-band noise to -46.7 dBc level. We also demonstrated the phase-locking to an industrial grade cooking magnetron transmitter at 915 MHz with a 75 kW CW power delivered to a water load by using a -26.6 dBc injection signal [2]. The sideband noise from the 3-Phase SCRs DC power supply can be reduced to -16.2 dBc level. Further noise reduction and their power combining scheme using magic-tee and cavity type combiners for higher power application (2x75kW) are to be presented. We intent to use one power station to drive the normal conducting and superconducting RF cavities for the inductrial linac. We also going to demonstarte a vertical SRF cavity test with a high input coupling Q using a 2.45GHz magnetron and comparing with a baseline test result using a solid state amplifier.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 902
EP  - 906
KW  - injection
KW  - controls
KW  - cavity
KW  - power-supply
KW  - klystron
DA  - 2023/09
PY  - 2023
SN  - 2673-5504
SN  - 978-3-95450-234-9
DO  - doi:10.18429/JACoW-SRF2023-WEPWB131
UR  - https://jacow.org/srf2023/papers/wepwb131.pdf
ER  -