Formation of short-lived positron emitters in reactions of protons of energies up to 200 MeV with the target elements carbon, nitrogen and oxygen.
Excitation functions were measured by the stacked-foil technique for proton induced reactions on carbon, nitrogen and oxygen leading to the formation of the short-lived positron emitters (11)C (T(1/2) = 20.38 min) and (13)N (T(1/2) = 9.96 min). The energy region covered extended up to 200 MeV. The product activity was measured non-destructively via gamma-ray spectrometry. A careful decay curve analysis of the positron annihilation radiation was invariably performed. The experimental results were compared with theoretical data obtained using the modified hybrid nuclear model code ALICE-IPPE for intermediate energies. The agreement was found to be generally satisfactory. The data are of importance in proton therapy.
Kettern
K
K
Institut für Nuklearchemie, Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany.
Shubin
Yu N
YN
Steyn
G F
GF
Van Der Walt
T N
TN
Coenen
H H
HH
Qaim
S M
SM
D002250:Carbon Radioisotopes / Q000032:analysis; D004583:Electrons; D009590:Nitrogen Radioisotopes / Q000032:analysis; D010104:Oxygen Radioisotopes / Q000032:analysis; D015203:Reproducibility of Results
D002250:Carbon Radioisotopes; D009590:Nitrogen Radioisotopes; D010104:Oxygen Radioisotopes