RF Phase Measurement at PHERMEX (Pulsed High Energy Radiographic Machine Emitting X-Rays) Using Time-to-Digital Converters.

摘要

Recent advances in time-to-digital converters (TDCs) have made 50-MHz rf phase measurement possible without the use of double-balanced mixers. These advances allow zero crossing discriminators to be used in conjunction with fast CAMAC TDCs to make amplitude-independent phase measurements. This method uses a time interval proportional to the phase angle, thus eliminating any of the calculations and calibration required with double-balanced mixers. 4 refs., 1 fig., 1 tab. (ERA citation 14:023022)