arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1907.04431nucl-exphysics.med-ph
收藏

35-60 MeV的$^{139}$ La(p,x)截面的堆积靶活化测量

Measurement of $^{139}$La(p,x) Cross Sections from 35-60 MeV by Stacked-Target Activation

Jonathan T. Morrell, Andrew S. Voyles, M. S. Basunia, Jon C. Batchelder, Eric F. Matthews, Lee A. Bernstein

摘要:

在LBNL 88英寸回旋加速器上用60 MeV质子束辐照天然镧箔(99.9119% $^{139}$ La)的堆叠靶。$^{139}$ La(p,x)截面的报道之间的35-60 MeV的9个放射性核素。该测量的主要动机是需要量化$^{134}$ Ce的产生。$^{134}$ Ce作为一种具有应用前景的医用放射性核素$^{225}$ Ac的正电子发射类似物,在体内生物分布测定中具有重要的应用价值。该测量结果与核模型代码TMENS、EMPIRE和ALICE(使用默认参数)进行了比较,结果显示与测量值存在显著偏差。

英文摘要:

A stacked-target of natural lanthanum foils (99.9119% $^{139}$La) was irradiated using a 60 MeV proton beam at the LBNL 88-Inch Cyclotron. $^{139}$La(p,x) cross sections are reported between 35-60 MeV for nine radionuclides. The primary motivation for this measurement was the need to quantify the production of $^{134}$Ce. As a positron-emitting analogue of the promising medical radionuclide $^{225}$Ac, $^{134}$Ce is desirable for in vivo applications of bio-distribution assays for this emerging radio-pharmaceutical. The results of this measurement were compared to the nuclear model codes TALYS, EMPIRE and ALICE (using default parameters), which showed significant deviation from the measured values.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑