The data acquisition system of the Eindhoven scanning proton microprobe

The new scanning microprobe has been in operation for two years. real time data acquisition takes place on a front end system. The measured data is transported via Ethernet to a workstation for online monitoring, analysis and storage. Hardware for control of the scan magnet and the quadrupoles and a multichannel analyzer have been developed. Data acquisition software for online monitoring and simultaneous display of multiple spectra with user selectable parameters has been written. The user interface is based on the X11-Window system. A relational database gives the user a flexible way to specify all parameters for the experiment. A faster datalink and a faster workstation will be realized this year.