Alpha-gamma decay studies of 251,253No and their daughter products 247,249Fm

被引：67
作者：
Hessberger, FP [1 ]
Hofmann, S
Ackermann, D
Cagarda, P
Herzberg, RD
Kojouharov, I
Kuusiniemi, P
Leino, M
Mann, R
机构：
[1] Gesell Schwerionenforsch mbH, D-64220 Darmstadt, Germany
[2] Johannes Gutenberg Univ Mainz, Inst Phys, D-55099 Mainz, Germany
[3] Univ Liverpool, Oliver Lodge Lab, Liverpool L69 7ZE, Merseyside, England
[4] Univ Jyvaskyla, Dept Phys, FIN-40361 Jyvaskyla, Finland
来源：
EUROPEAN PHYSICAL JOURNAL A | 2004年 / 22卷 / 03期
关键词：
D O I：
10.1140/epja/i2003-10238-4
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：
The isotopes No-251 and No-253 were produced in nuclear reactions Pb-206 (Ca-48,3n)No-251 and Pb-207(Ca-48,2n)No-253. Radioactive decay of these isotopes and their daughter products has been investigated by means of alpha- and, alpha-gamma- spectroscopy. An isomeric state No-251m, having a half-life of T-1/2 = (0.93 +/- 0.06) s and decaying by emission of a particles of E-alpha = (8665 8) keV was identified. The measured decay data allowed for the construction of partial level schemes for No-251, Fm-247,Fm-249 and Cf-243,Cf-245 and an extrapolation of energy systematics of single particle levels of N = 145, 147 and 1.49 isotones with even Z towards higher atomic numbers up to Z = 102.
引用
收藏
页码：417 / 427
页数：11
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