Abstract
To study the $${^{25}\hbox{Mg}}(p,\gamma ){^{26}\hbox{Al}}$$ reaction at the Jinping Underground Nuclear Astrophysics laboratory, a large-area $${^{25}\hbox{Mg}}$$ target with a uniform thickness is needed. A rotating unit is used to ensure the uniformity of the target thickness during evaporation. After many attempts, 19 targets with diameters of 40 mm and a non-uniformity of 8.4% were prepared simultaneously. The rate of material utilization was approximately 4.7 times higher than that obtained using a conventional evaporation method.
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