Alpha-decay half-life of 221Fr in different environments

被引：33

作者：

Jeppesen, H. B. ^{[1
]}

Byskov-Nielsen, J.

Wright, P.

Correia, J. G.

Fraile, L. M.

Fynbo, H. O. U.

Johnston, K.

Riisager, K.

机构：

[1] CERN, ISOLDE, PH Dept, CH-1211 Geneva 23, Switzerland

[2] Univ Aarhus, Inst Fys & Astron, DK-8000 Aarhus C, Denmark

[3] Chalmers Tekniska Hogskola, Fundamental Fys, S-41296 Gothenburg, Sweden

来源：

EUROPEAN PHYSICAL JOURNAL A | 2007年 / 32卷 / 01期

关键词：

D O I：

10.1140/epja/i2007-10011-9

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

A possible dependence of the alpha decay process on the solid-state environment of the decaying nucleus has been investigated by measuring the alpha-decay half-life of Fr-221 at room temperature in different materials (Au, W, Si and polyethylene). The change in half-life between the insulator Si and the metals Au/W is found to be 0.30(17)% / 0.42(21)%, respectivly. Furthermore an improved value of 4.79(2) min was found for the absolute half-life of Fr-221.

引用

页码：31 / 34

页数：4

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