TASMIP Spectra Calculator

You can use this application to quickly calculate and visualize the energy spectra for radiation sources used in x-ray imaging such as CT or radiography. The TASMIP algorithm calculates tungsten-anode x-ray spectra for tube voltages varying from 30-140 kVp. Simply choose the tube potential (kVp), filtration material, and filtration thickness. Filtration material/thickness is optional. This app uses the TASMIP algorithm source code on this site.


Number of spectra:

Spectrum 1:
Tube Potential (kVp):
Filtration element/compound:
Filtration thickness (mm):



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