Data Handling (Panel „Data"); Data Output; The „Info" Panel; The Spectrum View - SARAD MyRIAM User Manual

MyRIAM
Data handling (panel „DATA")
Saves the data received from the instrument as a binary file on the hard disk. To keep
the data integrity, the folders and file names are generated automatically. The data
subdirectory will be created in the same folder where the program file "Myriam.exe" has been
installed. The "DATA" directory contains subdirectories assigned to each used User ID. (e.g.
USER_ID_XYZ). The file name contains the serial number of the instrument as well as the
begin and end of the sampling period. It is possible to add a comment to the file. The text has
to be written in the edit field right down of the "INFO" panel before saving the data.
Activates the standard Windows „Open file" dialog. Only binary files with the
extension „*.myr" are accepted.
Exports the binary data file to an Excel compatible ASCII text file. The file name can
be chosen without restrictions. The text file contains beside the measurement results all
relevant system parameter and the name of the original binary file. The items within the text
file are separated by tabulator stops, so that the file can be opened by the Excel "File open"
menu directly.
SI -> US
Toggles between SI- and US units. The units used within the set-up dialog and the graphic
window are the same like selected in the main window before – independent on the recent
settings of the instrument. If the parameters have been transmitted to the instrument, the
display of the Myriam will show the units as used within the PC software.

Data output

The „INFO" panel
The text fields within this panel show the operation mode, the serial number, the user
identification, the local assignments, sample interval and the period of the measurement
The fields will be filled after data download from the instrument or opening a binary data file.
Only the right lower field is editable to add a comment. The field accepts a maximum of 255
chars.
If a comment has been added before saving data to the hard disc, the text will appear again
in the edit field after loading the file.

The spectrum view

A summary spectrum is stored for each measurement series shown in the centre of the
program window. The energy limits for the single regions of interest (ROI) are marked by
lines and coloured bars. The ROI1 (3000 ... 5600 keV) contains the LLRD activity as well as
a part of the Po-218 while the ROI2 (5600 ... 6100 keV) contains remaining Po-218 only. The
ROI2 is used to estimate the Po-218 counts within ROI1 which have to be subtracted from
the LLRD activity. The ROI3 is set in that way to cover the energy range of the natural LLRD
(3000 ... 4700 keV). The software does not distinguish between natural and artificial
Manual_Myriam_EN_10-04-08.doc
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