LCLS DictionaryPAD Phase and Amplitude Detector used for monitoring the klystron output. The PAD consists of a local phase shifter, nulling detector, and amplitude monitor. It utilizes a local phase measurements. IPA I-Phi-A is the Isolator, Phase Shifter, and Attenuator is used to control the klystron drive. It consists of a rotary field continuous phase shifter, known as the FOX phase shifter, and a solid state PIN diode attenuator and RF voltage detector. FTP Fast Time Plots. There are two types of FTPs, normal or jitter mode. EPSC Ethernet Power Supply Controller |