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An interesting form of high‐energy gamma‐ray–detector interaction and its effect on spectral peak centroid determination
Author(s) -
Zamenhof Robert G.
Publication year - 1979
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.594637
Subject(s) - physics , annihilation , compton scattering , detector , photon , centroid , radiation , scattering , pair production , gamma ray , optics , pulse (music) , nuclear physics , artificial intelligence , computer science
The pulse‐height continuum produced in a radiation detector following the interaction of photons by pair‐production is discussed. The event when one annihilation photon escapes from the detector without interaction while the other escapes after one Compton scattering interaction produces a characteristic component in the pulse‐height spectrum. The significance of this component in influencing the accurate determination of the centroid of the double‐escape peak is examined and shown to be negligibly small.