5 papers
Master Oscillator and Phase Reference Line Design for the PIP-II Linac
A. Syed, B. Vaughn, P. Varghese +8
The phase averaging reference line system provides the RF phase reference, LO and clock signals to the LLRF and other accelerator sub-systems. The PIP-II linac has RF systems at th…
Cold Test Results of Pre-Production PIP-II SSR2 Cavities with High-Power Couplers in the Fermilab Spoke Test Cryostat
A. Sukhanov, C. Contreras-Martinez, C. Grimm +13
As part of the PIP-II project at Fermilab, a pre-production cryomodule featuring 325 MHz Single Spoke Resonator type 2 (SSR2) superconducting RF cavities is under construction. The…
Performance of PIP-II High-beta 650 Cryomodule After Transatlantic Shipping
J. Ozelis, M. Barba, J. Bernardini +27
After shipment to the Daresbury Lab and return to Fermilab, the prototype HB650 cryomodule underwent another phase of 2K RF testing to ascertain any performance issues that may hav…
Closed Loop Testing of Microphonics Algorithms Using a Cavity Emulator
S. Raman, P. Varghese, B. Chase +4
An analog crystal filter based cavity emulator is modified with reverse biased varactor diodes to provide a tuning range of around 160 Hz. The piezo drive voltage of the resonance…
LLRF System for the Fermilab PIP-II Superconducting LINAC
P. Varghese, B. Chase, E. Cullerton +4
PIP-II is an 800 MEV superconducting linac that is in the initial acceleration chain for the Fermilab accelerator complex. The RF system consists of a warm front-end with an ion so…