Design Improvements in the COLFTAR Cooled Crystal Light-Value.

摘要

This report describes four improvements to the electronics of the COLFTAR (Cooled On-Line Fourier Transform and Reconstruction) System. These improvements are:the addition of more reliable crystal-temperature sensors, a new higher capacity write gun,synchronization of the entire system,and the addition of dynamic focusing to the write gun circuitry. These changes improve the reliability of the system and provide for improved resolution and contrast.