Speaker
Description
The RF system for the Alternating Gradient Synchrotron (AGS) at Brookhaven National Lab (BNL) consists of a Tetrode Based Power Amplifier (PA) driven by a Solid-State Feedback Amplifier (SSFB). Due to the nature of the tetrode, the Screen Voltage is prone to arcing to the Grid. This creates a transient at the Screen Voltage (2kV) which appears on the output of the SSFB damaging the devices. Due to the low frequency of the system (300kHz – 5 MHz) a circulator cannot be used. To prevent downtime, costly device replacement, and better reliability a protection method must be investigated. This poster will go through the analysis of the transients and explore protection methods including Gas Discharge Tubes (GDT) & Transient Voltage Suppressor Diodes (TVS).
