Cross section measurements using gas and solid targets for production of the positron-emitting radionuclide O-14

Z. Kovács; B. Scholten; F. Tárkányi; H.H. Coenen; S.M. Qaim

doi:10.1524/ract.91.4.185.19970

Published by De Gruyter (O) September 25, 2009

Cross section measurements using gas and solid targets for production of the positron-emitting radionuclide O-14

Z. Kovács , B. Scholten , F. Tárkányi , H.H. Coenen and S.M. Qaim

From the journal Radiochimica Acta

https://doi.org/10.1524/ract.91.4.185.19970

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Abstract

Irradiation of nitrogen with protons leads to ¹¹C (T_1/2=20.4min) via the well-known ¹⁴N(p,α) reaction. However, ¹⁴O (T_1/2=70.6s) and ¹³N (T_1/2=10min) are also formed as side products via the ¹⁴N(p,n) and ¹⁴N(p,d+pn) reactions, respectively. In this work detailed cross section measurements were carried out for those two side reactions up to 19.2MeV using N₂ gas and nitrogen-containing solid targets. From the data, the thick-target yields and the exact level of radioactive impurities in ¹¹C were calculated. In the case of ¹⁴O, the results also confirmed the possibility of producing this β⁺ emitting radionuclide in sufficient quantities for PET investigations.

Published Online: 2009-9-25

Published in Print: 2003-4-1

Cross section measurements using gas and solid targets for production of the positron-emitting radionuclide O-14

Abstract

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