Cyclotron production of 211At/211gPo by 209Bi(α,2n) reaction

Cyclotron production of 211At/211gPo by 209Bi(α,2n) reaction
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通过 209Bi(α,2n) 反应回旋加速器产生 211At/211gPo

DOI:
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发表时间:
2008
期刊:
影响因子:
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通讯作者:
Z. Alfassi
Z. Alfassi
中科院分区:
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文献类型:
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作者:
S. Morzenti;M. Bonardi;F. Groppi;C. Zona;E. Persico;E. Menapace;Z. Alfassi

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Astatine-211 (T1/2 = 7.214 h)和其超短寿命α-发射子pol -211g (T1/2 = 0.516 s)在EC长期平衡下是α-发射体,具有较高的线性能量传递(LET - 130 eV·nm - 1)和适合代谢放疗的半衰期;211At/211gPo系统的α分支率为100%。直接制备209Bi(α,2n)211At/211gPo是最理想的方法;在欧委会的JRC-Ispra回旋加速器上,以高于28.61 MeV的α-能量辐照Bi靶,通过209Bi(α,3n)反应产生少量的γ-发射体210At(用作内尖峰)。
Astatine-211 (T1/2 = 7.214 h) is an α-emitter at secular equilibrium by EC with its ultra-short-lived α-emitting daughter, polonium-211g (T1/2 = 0.516 s), with a high Linear Energy Transfer (LET — 130 eV·nm−1) and a half-life suitable for metabolic radiotherapy; the overall α branching of the 211At/211gPo system is 100%. The direct production of 209Bi(α,2n)211At/211gPo seems the most satisfactory method; Bi targets were irradiated at JRC-Ispra Cyclotron of European Commission, EC, using α-energy higher than 28.61 MeV in order to produce, via 209Bi(α,3n) reaction, small amounts of the γ-emitter 210At (used as internal spike).
使用阿尔法发射器进行靶向治疗。
DOI: 10.1088/0031-9155/41/10/005
发表时间: 1996
影响因子: 3.5
作者:
Vaidyanathan,G;Zalutsky,MR
通讯作者: Zalutsky,MR