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2. DEMON
2.1
dif – defines the spectral range
dif first-spectrum last-spectrum
where energy = analyser energy
first-spectrum = first spectrum to be grouped
last-spectrum = last spectrum to be grouped
(default for QENS mode on IRIS is 105 112)
2.2
demon_first – runs demon for 1 run number (this can be repeated to create individual
output files for each run number specified)
dem_first runnumber
where runnumber = run number
2.3
to add runs into one output file (the output file will have the run number of the first run)
dem_first runnumber – for first run
dem_loop runnumber - for each subsequent run to add
dem_ave number-runs
where number-runs = total number of runs
2.4
demon_int int - creates an output file (if required)
the extension will be “.dif”
3. ANALYSE
3.1
sandc – reads data for sample & container
sandc sample-run can-run
where sample-run = runnumber for sample
can-run = runnumber for container
3.2
for subtraction with no corrections:
subtr factor
where factor is the scaling factor for the container, so that S=S-factor*C;
default = 1.0
3.3
for subtraction with corrections:
corr can-option factor
where can-option =1 for no can; =2 with can
factor is the scaling factor so that S =S-factor*correction*C;
default = 1.0
3.4
write_int - creates an output file (if required)
set/extension outExt
where outExt is the extension for the output file
the convention is :
for graphite with input “.ipg”, output is “.ibg” for subtr or “.iag” for corr
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