Characterization of the secondary neutron field inside a cyclotron for production of radiopharmaceuticals

0573715 - ÚJF 2024 RIV GB eng J - Journal Article
Zmeškal, M. - Košťál, M. - Czakoj, T. - Šimon, J. - Majerle, Mitja - Zach, Václav - Lebeda, Ondřej - Vadják, Š. - Antoš, M. - Matěj, Z.
Characterization of the secondary neutron field inside a cyclotron for production of radiopharmaceuticals.
Applied Radiation and Isotopes. Roč. 199, SEP (2023), č. článku 110865. ISSN 0969-8043
R&D Projects: GA MŠMT EF16_013/0001812
Research Infrastructure: CICRR - 90241
Institutional support: RVO:61389005
Keywords : Neutron spectrometry * PET cyclotron * Backward neutron spectrum * Radiation protection * Activation of cyclotron * Geant4 * MCNP62
OECD category: Nuclear physics
Impact factor: 1.6, year: 2022
Method of publishing: Limited access
https://doi.org/10.1016/j.apradiso.2023.110865

During production of radiopharmaceuticals, the radiation situation in cyclotron pit is an important parameter, which is being monitored to ensure fulfilment of the limits and conditions of safe operation. The neutron flux in the structural components of the accelerator is also an important parameter, because the secondary neutrons are responsible for activation of cyclotron structural components and may even affect structural changes in it. This paper aims to characterize the neutron field in inner positions of medical accelerator IBA 18/9 by activation detectors and by means of scintillation spectrometry. The backward angle measurement was realized also in special liquid water target (H182O) at U120M cyclotron to confirm the data obtained in IBA 18/9 cyclotron.
Permanent Link: https://hdl.handle.net/11104/0344092