Optimization of 89Zr production using Monte Carlo simulations

被引:3
作者
Alfuraih, Abdulrahman [1 ]
Alzimami, Khalid [1 ]
Ma, Andy K. [2 ]
Alghamdi, Ali [2 ]
机构
[1] King Saud Univ, Dept Radiol Sci, Riyadh, Saudi Arabia
[2] Univ Dammam, Dept Radiol Sci, Dammam, Saudi Arabia
关键词
Monte Carlo simulations; Immuno-PET; PET;
D O I
10.1007/s10967-012-2074-6
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Zirconium-89 (Zr-89) can be produced in a cyclotron by focusing the proton beam on an yttrium-89 (Y-89) foil target. Optimal combination of beam energy and target assembly configuration enables maximum production of Zr-89 while minimizing the formation of contaminant nuclides such as Zr-88 and Y-88 to allow efficient and effective radiopharmaceutical labeling. Accurate modeling of the proton beam and the target is therefore an essential step to assure the best beam and target specification. We used the radiation transport code MCNPX to simulate the transport of protons through the irradiation assembly and the nuclear reaction code TALYS to obtain the production cross sections of various nuclides from proton-Y-89 reactions. Results from simulating the irradiation of 14 mm diameter targets with aluminum (Al) degrader at 19.8 mA for 1 h suggested that the 0.15 mm thick one would produce 227 MBq while the 0.3 mm thick one would produce 413 MBq of Zr-89 with less than 1% uncertainty. These results show excellent agreement with experimental work in literature. This work provides the basis for further experimental and theoretical assessments of the use of Zr-89 as radiopharmaceutical labels.
引用
收藏
页码:1025 / 1029
页数:5
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