empty global scanner calibration factor in norm file

[szho42]

Hi,

After using nm_extract to convert normalization file (Simenes raw data, a dicom header and a binary .bf file), the value of 'GLOBAL SCANNER CALIBRATION FACTOR' in the xxxx.n.hdr file is empty.

Just wondering what could cause this value to be empty?

---- part of the normalization header file ----

%GLOBAL SCANNER CALIBRATION FACTOR:= %scanner quantification factor (Bq*s/ECAT counts):=1.94365e+007 %calibration date (yyyy:mm:dd):=2016:08:10 %calibration time (hh:mm:ss GMT+00:00):=22:55:32 %cross calibration factor:=1.014

Thanks

[KrisThielemans]

as nm_extract essentially just copies the header from the data (with adjusting the filename), I strongly suspect that it isn't in the DICOM file either. You could check that with e.g. dcmdump or indeed just strings.

In any case, I believe this is as expected: it seems to be a "group" keyword (like !GENERAL DATA:= et al.). It is also the case with our norm files.