Skip to content

Energy Calibration in 30 seconds

Jan Mayer edited this page Aug 29, 2013 · 2 revisions

In combination with the HDTV project, you can easily calibrate your detector within 30 seconds.

First, load your spectrum (see example files):

hdtv> spectrum get B0-Ra226.spc
Loaded B0-Ra226.spc into 0

You can use the build-in peakfinder for energy calibration purposses. This is not recommended for efficiency calibration, as the automated peakfinder might get bad results for peak areas (manually fit and add your peaks using +F). Depending on your spectrum you might need to change the values.

hdtv> fit peakfind 1500 25000 -a --sigma=17 --threshold=0.002
Found 48 peaks

hdtv peakfind result

Write the fits to file:

hdtv> fit write B0-Ra226.xml
Saving fits of spectrum 0 to B0-Ra226b.xml

Now use the radiation CLI to calibrate. First, make sure the output seems reasonable:

$> radiation calibrate Ra-226 B0-Ra226.xml
0.3433237334509916
0.1002188156265297

Finally, write the output to a file.

$> radiation calibrate Ra-226 B0-Ra226.xml > B0.cal
Clone this wiki locally