Neutron Detector Data Acquisition for a Spin Echo Instrument at a Spallation Source

For a spin echo instrument installed at the SNS (Oak Ridge, TN) a position sensitive detector based on the MWPC principle is being used. The data acquisition electronics is based on a development for X-ray spectroscopy, using delay lines and N110 TDCs (ESRF, Grenoble, France). Some modifications were necessary to adapt to the timing requirements at the pulsed neutron source. The design of the data acquisition system and the interface to the SNS timing system is described.