Due to sometimes operating with very noisy systems, both at Daresbury and RIKEN, I have installed a change to the startup of the system.

The Runcontrol GO button now only starts the output of SYNC pulses. A further button labelled "Start ASIC Readout" ( see attached photo ) needs to be pressed to start the ASIC ADC, Discriminator and Correlation readout.

After carrying out the normal operations to start the system and pressing the GO button the Merger can be checked to be certain it is merging the events. Since there are only SYNC pulses it should soon be apparent if this is not happening and appropriate actions can be taken. ( Kill/Reload the Link and Merger processes using the "Merger for AIDA" icon at the top of the screen is one way. )

Once it is certain the merging is in progress then the new button labelled "Start ASIC Readout" ( see attached photo ) needs to be pressed to start the ASIC ADC, Discriminator and Correlation readout.

This must be done after every GO.