start

Starting Datamuncher

Currently Datamuncher is provided as source code. To start it, one has to start IDL, set the folder containing the code as active folder, and type "@start" followed by "datamunch_beta".

A compiled version for the IDL virtual machine will be provided soon.

Searching the pymcabatch.exe

If you intend to use Datamuncher to call PyMCA sub-processes, you need to set the right version active, by selecting the file in the dialog. If you are not interested in calling PyMCA, simply click "cancel". (PyMCA needs to be installed on your system and is an independent work.)

Main Window

The main window is separated in several sub-widgets, which correspond to the different steps of data processing.

At the bottom of the widget, the "done" button closes Datamuncher. The text field above provides output from datamuncher. Its content is saved in the "dmroipos" folder of the active directory.

Scan Folder for data

First a data folder needs to be selected, either by entering its name and confirming this with <ENTER> or by selecting one in the widget spawned by the button. Be aware that Datamuncher will create in this folder its typical folder structure.

Before searching for the data, the Instrument used needs to be defined. "AXIL" refers to the scanners of the former AXIL research group in Antwerp, M6 to raw spectral data from the Bruker M6 Jetstream, but might also work for data from the M4 Tornado, and finally, general EDF data.

By pressing the "MUNCH" button, an automatic search for data in the format to the appropriate scanner is started. Be aware, that all sub-folders are searched and that this may take a while.
The data sets found are listed in the automatically generated "Batch File".

Calculate Sum spectra

When pressing the "SUM/EDF" button Sum and Maximum Pixel Spectra of all data sets in the Batch File are calculated. Data is also converted to .EDF files, if it is not already present in these.

In case of the AXIL scanner also the energy calibration of all four detectors needs to be provided to allow for summing the signals of all four detectors for each pixel.

Fitting spectra

In this widget the current Batch File is shown. A new file can be selected by the "select" button. "edit" spawns a text editor to edit the Batch File. The open text editor blocks Datamuncher and needs to be closed, before continuing. The file can also be opened in an external text editor.

"MODIFY TAU" spawns a sub-process that allows to modify the Dynamic Analysis Matrix. "MAKE SU_PIXEL" re-bins the data sets in the Batch File to squares with the "Super pixel size".

The button "FIT" starts the fit process, according to the parameters set in the Batch File. The Field "CPUs used" Refers to the number of parallel processes in case of non-Dynamic Analysis data processing.