F. Gasparini et al., A DELAY-LINE ON A VLSI GATE ARRAY AS A TIME DIGITIZER, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 342(2-3), 1994, pp. 571-577
A delay line was developed on a VLSI gate array for drift time measure
ments on muon chambers of the ZEUS detector at HERA. It consists of 80
cells featuring a 3 ns/cell propagation time; at the start a short pu
lse is injected into the line and at the stop the status of the line i
s latched into a 10 byte register. An r.m.s. resolution better than 1
ns was obtained with this reasonably low-cost TDC.