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