Table of Contents
Physics Research International
Volume 2017, Article ID 2124383, 5 pages
https://doi.org/10.1155/2017/2124383
Research Article

Dependence of 18F Production Yield and Radioactive Impurities on Proton Irradiation Dose

1Center for Radioisotope and Radiopharmaceutical Technology, National Nuclear Energy Agency (BATAN), Puspiptek Area, Serpong, South Tangerang, Indonesia
2Dharmais Cancer Hospital, Jakarta, Indonesia

Correspondence should be addressed to Imam Kambali; di.og.natab@yekmami

Received 25 February 2017; Revised 24 May 2017; Accepted 7 September 2017; Published 9 October 2017

Academic Editor: Leonardo Golubovic

Copyright © 2017 Imam Kambali et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Radiation safety for patients during positron emission tomography (PET) procedures is affected by the amount of radioactive impurities generated during production of fluorine-18 (18F) radionuclide. In this investigation, the dependence of 18F production yield and radioactive impurities on proton irradiation dose is discussed. Enriched water () target was bombarded perpendicularly by 11-MeV proton beams at various proton doses. Experimental results indicated that the 18F radioactivity yield and the amount of 56Co and radioactive impurities depend strongly on the proton dose. In the proton dose range between 2 μAhr and 20 μAhr, the radioactive impurities increased with increasing proton dose. There was no significant difference in the radioactivity yield of both 56Co and impurities at low proton dose between 2 and 10 μAhr. However a huge difference was recorded when the dose was increased above 10 μAhr. The experimental data can be used to predict the amount of impurities generated during 18F production at proton dose of higher than 20 μAhr.