User manual

Windows Server Program
ComTec GmbH 5-3
5.1.3. File menu
Clicking in the File menu on the Data... item opens the Data Operations dialog box.
This dialog allows to edit the data format settings and perform operations like Save, Load, Add,
Subtract, Smooth and Erase. The Radio Buttons MPA, Selected Spectra and New Spectra
provide a choice between handling of the compete data set (MPA) or selected spectra, or to load
new selected spectra for compare. Mark the checkbox Save at Halt to write a MPA file containing
the configuration and all spectra at the stop of a measurement. The filename can be entered. If
the checkbox auto incr. is crossed, a 3-digit number is appended to the filename that is
automatically incremented with each saving. The format of the data can be ASCII (extension for
seperated spectra .ASC), binary (.DAT), GANAAS (.SPE), CSV (.CSV). If Seperate Header is
not checked, the Header and data is saved together in a file with extension .MP, otherwise the file
with extension .MP contains only the header and the data is written seperately into a file with
appropriate extension. The buttons Save, Load, and Erase perform the respective operation.
With Add and Sub spectra can be added or subtracted from the present data. The checkbox
calibr. can be checked to use a calibration and to shift the data then according to the calibration.
The Smooth button performs an n-point smoothing of selected single spectra. The number of
points to average can be set with the Pts edit field between 2 and 21. Check the Write Listfile
checkbox to write a listfile during a run. No Histogramming prevents calculating any spectra to
save computing time and concentrate the system on writing the listfile. It is possible to reduce the
size of list files by writing reduced timer data. When "Write Listfile" is enabled in the data
operations dialog, a checkbox Reduce timer data will be visible and you have a choice between
a factor of 10, 100 or 1000 corresponding to timer events every 10, 100 or 1000 msec instead of
every 1 msec. Of course the resolution of the real- and live time will be reduced by this factor
when evaluating the listfile. A checkbox named Drop 'zero events' allows to drop coincidence
events with all ADC data being zero. Such events may arise strongly if the input signals to the
ADCs have some noise as such a noise signal can make a deadtime signal which starts a
coincidence window also if the signal is too low for a valid conversion. Such events will then also
be eliminated before writing them into a listfile.
A log file can be written. The log file options can be edited in a dialog that can be entered from
the data options dialog pressing the Log... button.. See for the set of control commands that
support opening, closing and writing text into log files in the on-line help or in chapter 5.2.
Figure 5.3: Data Operations dialog boxes for MPA data (left) and selected spectra (right)