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--- how_to_run_combined_s800_gretina [2016/03/17 09:39]
pereira
+++ how_to_run_combined_s800_gretina [2016/03/17 10:07]
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@@ Line 1: / Line 1: @@
 ====== How to run combined S800 + GRETINA ======
 In order to run the combined S800 + Gretina daq, the following steps need to be taken:
+First of all, make sure that the external synchronization and external clock () are enabled in the S800 ULM trigger module:
   - [[S800 DAQ tools#Running the S800 DAQ|Run the S800 ReadoutGUI]] for the S800 data acquisition system as you normally would on spdaq19, and click the ''Start'' button.
@@ Line 15: / Line 18: @@
   * **spdaq19.s800filter**: It will provide the event built, reformated data from the S800 Filter. During a run, data are pushed from this ring into the GRETINA GEB.
-In addition to the normal **stagearea** structure, three directories are added that will be used to store raw S800 data:
+In addition to the normal **stagearea** structure in the experiment account, three directories are added that will be used to store raw S800 data:
   * **~/stagearea/rawccusb**: Event files containing raw CCUSB data from the S800.

S800 Documentation