Speaker
Description
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Introduction
44Sc is a novel radionuclide with a high branching ratio (Eβ+av=632 KeV, I = 94.3%), which is highly suitable for positron emission tomography (PET) imaging, endowing it with broad application prospects in the field of nuclear medicine.
The preparation of 44Sc by 44Ca (p, n) 44Sc nuclear reaction in a cyclotron is the most widely used preparation method. In this study, calcium oxide powder was used as the target material and the pressing experiments were carried out. -
Material and Methods
The influence of different pressures and different target material quantities on target sheet formation was investigated. A certain amount of calcium oxide was weighed, and pressing experiments were conducted under different pressure conditions to observe the formation of the target sheet. -
Results and Conclusion
The results of different pressure and target material quantities are shown in Table 1. When the pressure reaches 49 KN and the amount of target material reaches 250 mg, target sheets that meet the requirements can be obtained. Simulation calculations of the target pieces were carried out, and the results are shown in Figure 1. The maximum surface temperature of the target piece is 615℃, which can meet the production requirements of 44Sc.
