An Apparatus to Obtain a Pure Annihilation Peak
Articles > Article · 2006
Authors: Cüneyt ÇELİKTAŞ
Instrumentation Science & Technology, International, WoS, 2006, vol 35, pp 75-83
DOI: 10.1080/10739140601001259
Summary
A timing discrimination set‐up was developed and the discrimination method was applied to the annihilation gamma ray peak of the 22Na radioisotope. The annihilation peak was discriminated from the superimposed photon spectrum generated by the Compton effect, backscattering, and background in the 0.5 MeV energy region. A NaI(Tl) inorganic scintillation detector was used to detect the annihilation gamma rays of the radioisotope. Energy resolution of 9.1% was obtained for the discriminated annihilation peak. The developed spectrometer has achieved the discrimination of the annihilation counts and the photo peak counts superimposed on them.