Speaker
Description
Phase reference distribution systems (PRDS) provide highly stable, in terms of amplitude and phase stability, reference signals for every part of particle accelerator control systems, and therefore, are crucial for meeting the beam parameters requirements. Among many PRDS requirements, short and long-term phase stability is paramount. In a brief description, the sources of phase instabilities in PRDS are of short-term character, mainly the phase noise of the RF reference signal source, and long-term character, coming from the phase drift introduced by the long coaxial cables, exposed to environmental factors, like temperature, humidity, and air pressure changes. The contribution presents the recent results of long-term phase drift introduced by some coaxial cables selected for potential use in various parts of LLRF and PRDS systems. The goal is to choose RF cables that, in terms of electrical delay, remain as stable as possible in changing environmental conditions. The results present trade-offs between cable diameter, mechanical flexibility, and phase stability versus temperature change vulnerability.
| Abstract Category | Timing and Synchronization |
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