Title :
A Multi-Hit Drift Time Digitizer
Author :
Ouimette, Dale ; Porat, Dan ; Tilghman, Anthony ; Wojcicki, Stanley ; Young, Charles
Author_Institution :
Stanford Linear Accelerator Center and Physics Department, Stanford, California 94305
Abstract :
We describe electronics for a drift chamber which measures drift times and has multi-hit capability. The system is based on a stable (± 0.005%) 125 MHz clock which eliminates the need for frequent calibrations. The times are digitized according to a Gray code in order to restrict transition errors to the least significant bit. The least count is 4 ns which contributes an rms error of 58 ¿m to the measurement of drift distance.
Keywords :
Clocks; Costs; Electronic circuits; Linear accelerators; Physics; Pulse amplifiers; Reflective binary codes; Structural beams; Timing; Wires;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.1982.4335848
