PSI sics-cvs-psi_pre-ansto

2003-06-13 00:00:00 +00:00
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+<HTML>
+<HEAD>
+<TITLE>FOCUS Data Storage</TITLE>
+</HEAD>
+<BODY>
+<H1>FOCUS Data Storage</H1>
+<P>
+FOCUS writes data into portable binary NeXus files. The scheme implemented 
+involves opening a new file for  any run and updating this file at
+predefined intervalls during counting operations. All this is commonly
+handled automatically by the <a href="count.htm">count</a>
+command. However, data file writing can be initiated and configured
+manually from the command line through the following commands:
+<dl>
+<DT>storefocus start
+<DD>Write a new data file   
+<DT>storefocus update
+<DD>Updates the current data file.
+<DT>storefocus intervall
+<DD>prints the current update intervall to use during counting. Units
+is minutes.
+<DT>storefocus intervall newval
+<DD>Sets the update intervall to newval minutes.
+<DT>killfile
+<DD>This command will overwrite the last data file written and thus 
+ effectively erase it. Therefore this command requires manager privilege.  
+</DL>
+FOCUS has three detector banks which may not all be active at all
+times. Thus a way is needed to tell SICS about the configuration of
+the day.  This is also done through ths storefocus command. There are
+three parameters, <b>upper, middle and lower</b> which can be either on
+(value greater 0) or off (value less then or equal to 0). The value
+can be inquired with <b> storefocus par</b>. For example <b>storefocus
+middle</b> prints the flag  for the middle detector bank. With <b>
+storefocus par val </b> a new value for the parameter is set. For
+example <b>storefocus lower 1</B> switches the lower detector bank
+on. These commands are usually used in the configuration file and
+require manager privilege.  
+</P>
+</BODY>
+</HTML>