Gamma udledningen fra radioisotopen <sup>133</sup>Xe kan for eksempel bruges til at scanne (og derved danne billeder) af hjerte, lunger og hjernen ved hjælp af [[Single Photon Emission Computed Tomography|SPECT]] metoden. <sup>133</sup>Xe er også blevet brugt til at måle blodgennemstrømning.<ref>{{cite book
 | first=Ernst | last=Van Der Wall | year=1992
 | title=What's New in Cardiac Imaging?: SPECT, PET, and MRI
 | publisher=Springer | isbn=0792316150 }}
</ref><ref>{{cite journal
 | last=Frank | first=John
 | title=Introduction to imaging: The chest
 | journal=Student BMJ
 | year=1999 | volume=12 | pages=1–44
 | url=http://student.bmj.com/issues/04/01/education/8.php
 | access-date=2008-06-04 }}
</ref><ref>{{cite web | last=Chandak | first=Puneet K. | date=20. juli 1995 | url=http://brighamrad.harvard.edu/education/online/BrainSPECT/Theory/Xenon133.html | title=Brain SPECT: Xenon-133 | publisher=Brigham RAD | access-date=2008-06-04 | archive-date= 4. januar 2012 | archive-url=https://web.archive.org/web/20120104015834/http://brighamrad.harvard.edu/education/online/BrainSPECT/Theory/Xenon133.html |url-status=dead }}</ref>
 
=== Andet ===
Fysik Kemi