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Production of 52Fe from symmetric complete fusion-evaporation reactions
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms ( IF 1.3 ) Pub Date : 2021-03-03 , DOI: 10.1016/j.nimb.2021.02.008
Sean R. McGuinness , Samuel J. Ferran , John T. Wilkinson , C. Shaun Loveless , Tyler Anderson , Drew Blankstein , Adam M. Clark , Samuel L. Henderson , Austin D. Nelson , Craig S. Reingold , Michael Skulski , Suzanne E. Lapi , Graham F. Peaslee

A promising method for the production and extraction of 52Fe utilizing near-symmetric, heavy-ion fusion-evaporation reactions is presented. A 28Si beam was used to bombard a 27Al target, producing 52Fe through the reaction: 27Al (28Si, p2n)52Fe. After irradiation, the aluminum target was dissolved, and the 52Fe was separated from the aluminum matrix and other reaction products through the use of a cationic-exchange column. It was possible to recover the 52Fe (t1/2 = 8.3 h) with high specific activity, higher than can be achieved with the high energy proton spallation reactions currently used to produce this isotope, which has significance in medical research. The production yields for this reaction were measured and compared to PACE4 calculations. These results demonstrate the potential for dedicated accelerator production of 52Fe using heavy-ion beams, which will result in higher specific activities with robust radiochemical purification techniques.



中文翻译:

通过对称完全熔融蒸发反应生产52 Fe

提出了一种利用近对称的重离子熔融蒸发反应生产和提取52 Fe的有前途的方法。使用28 Si光束轰击27 Al靶,通过该反应产生52 Fe:27 Al(28 Si,p2n)52 Fe。辐照后,将铝靶溶解,并通过使用阳离子交换柱将52 Fe从铝基质和其他反应产物中分离出来。可以回收52 Fe(t 1/2 = 8.3 h)具有较高的比活度,高于目前用于产生这种同位素的高能质子散裂反应所能达到的水平,这在医学研究中具有重要意义。测量该反应的产率,并将其与PACE4的计算结果进行比较。这些结果证明了使用重离子束专门生产52 Fe促进剂的潜力,这将通过强大的放射化学纯化技术带来更高的比活。

更新日期:2021-03-03
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