EXCITED LEVELS OF 233PA

被引:17
作者
VARA, JM
GAETA, R
机构
[1] Department of Physics Junta de Energia Nuclear, Madrid
关键词
Radioactivity;
D O I
10.1016/0375-9474(69)90869-0
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 α-decay spectrum of 237Np was measured with a semiconductor spectrometer of 18 keV effective resolution (FWHM). Over 13 new lines were identified. The γ-ray spectrum of 237Np and 233Th from 20 to 1000 keV was studied with high-resolution Ge(Li) and Si(Li) detectors. From these data and previous results, a more complete level scheme of 233Pa is constructed. Nilsson assignments 1 2-(530), 3 2+(651) and 5 2+(642) for rotational bands based on levels at 0, 86.6 and 237.7 keV are confirmed. A new 1 2+(660) band whose lowest member is the level at 170.3 keV is identified and new levels with probable vibrational character are studied. © 1969.
引用
收藏
页码:586 / &
相关论文
共 22 条
[1]   ANOMALOUS ELECTRIC DIPOLE CONVERSION COEFFICIENTS IN ODD-MASS ISOTOPES OF THE HEAVY ELEMENTS [J].
ASARO, F ;
STEPHENS, FS ;
HOLLANDER, JM ;
PERLMAN, I .
PHYSICAL REVIEW, 1960, 117 (02) :492-505
[2]  
BARANOV SA, 1962, JETP, V14, P1232
[3]  
BROWNE E, 1968, UCRL17989
[4]   ROTATIONS AND VIBRATIONS IN DEFORMED NUCLEI [J].
DAVIDSON, JP .
REVIEWS OF MODERN PHYSICS, 1965, 37 (01) :105-+
[5]   EXISTENCE OF A 3.7X10-8-SEC METASTABLE STATE IN PA-233 [J].
ENGELKEMEIR, D ;
MAGNUSSON, LB .
PHYSICAL REVIEW, 1954, 94 (05) :1395-1396
[6]   LEVEL SCHEME OF 231TH [J].
GAETA, R ;
VIGON, MA .
NUCLEAR PHYSICS, 1966, 76 (02) :353-&
[7]  
GAETA R, 159DFI49 JEN
[8]  
GOLDIN LL, 1955, C ACADEMY SCIENCES U
[9]  
Kondratev L.N., 1956, IZVEST AKAD NAUK S F, V20, P875
[10]   ENERGY LEVELS OF 237NP .1. ALPHA DECAY OF 241AM [J].
LEDERER, CM ;
POGGENBU.JK ;
ASARO, F ;
RASMUSSE.JO ;
PERLMAN, I .
NUCLEAR PHYSICS, 1966, 84 (03) :481-&