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RIS citation export for TUA04: Characterization of Neutron Leakage Field Coming from 18O(p, n)18F Reaction in PET Production Cyclotron

AU  - Schulc, M.
AU  - Antos, M.
AU  - Brijar, F.
AU  - Cuhra, M.
AU  - Cvachovec, F.
AU  - Czakoj, T.
AU  - Košťál, M.
AU  - Losa, E.
AU  - Matej, Z.
AU  - Mravec, F.
AU  - Rypar, V.
AU  - Simon, J.
AU  - Vadjak, S.
ED  - Conradie, Lowry
ED  - De Villiers, John Garrett
ED  - Schaa, Volker RW
TI  - Characterization of Neutron Leakage Field Coming from 18O(p, n)18F Reaction in PET Production Cyclotron
J2  - Proc. of Cyclotrons2019, Cape Town, South Africa, 23-27 September 2019
CY  - Cape Town, South Africa
T2  - International Conference on Cyclotrons and their Applications
T3  - 22
LA  - english
AB  - This paper shows a new method for characterization of the secondary neutron field quantities, specifically neutron spectrum leaking from 18O enriched H₂O XL cylindrical target in IBA Cyclone 18/9 in the energy range of 1-15 MeV. Spectrum is measured by stilbene scintillation detector in different places. The neutron spectra are evaluated from the measured proton recoil spectra using deconvolution through maximum likelihood estimation. A leakage neutron field is an interesting option for irradiation experiments due to quite high flux, but also to the validation of high energy threshold reactions due to relatively high average energy. Measured neutron spectra are compared with calculations in MCNP6 model using TENDL-2017, FENDL-3, and default MCNP6 model calculations. TENDL-2017 and FENDL-3 libraries results differ significantly in the shape of the neutron spectrum for energies above 10 MeV while MCNP6 gives incorrect angular distributions. Activation measurements of different neutron induced reactions support characterization. The 18F production yield is in a good agreement with TENDL-2017 proton library calculation within respective uncertainties.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 136
EP  - 139
KW  - neutron
KW  - proton
KW  - detector
KW  - experiment
KW  - cyclotron
DA  - 2020/06
PY  - 2020
SN  - 978-3-95450-205-9
DO  - doi:10.18429/JACoW-Cyclotrons2019-TUA04
UR  - http://jacow.org/cyclotrons2019/papers/tua04.pdf
ER  -