Multichannel interval timer

A CAMAC based modular multichannel time digitizer with a common start enabling twelve independent stop inputs. Ten time ranges from 1.5 microns to 1.3 microns can be preset. Time can be read out in twelve 24-bit words either via CAMAC Crate Controller or an external FIFO register. LSB time calibration is 78.125 ps. An additional word reads out the operational status of twevle stop channels. The system consists of two modules. The analog module contains a reference clock and 13 analog time stretchers. The timer has an excellent differential linearity, thermal stability and crosstalk free performance.