The knowledge of the ion beam profile in a storage ring is vital and it is
measured by a position-sensitive detector. Go-ordinates of hit locations on
the anodes of two multi-channel plate (MCP) detectors (one in horizontal a
nd the other in vertical direction) are collected. Task sharing between sof
tware nad hardware, including dual-buffer memory-management as implemented
in the data-acquisition card described here, eliminates acquisition deadtim
e. (C) 1999 Elsevier Science B.V. All rights reserved.