Alpha-decay characteristics of neutron-deficient Po-190, Bi-189 and Pb-186 isotopes

被引：23
|
作者：
Andreyev, AN
Bijnens, N
Enqvist, T
Huyse, M
Kuusiniemi, P
Leino, M
Trzaska, WH
Uusitalo, J
VanDuppen, P
机构：
[1] UNIV LOUVAIN,INST KERN & STRALINGSFYS,B-3001 LOUVAIN,BELGIUM
[2] UNIV JYVASKYLA,DEPT PHYS,FIN-40351 JYVASKYLA,FINLAND
来源：
ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI | 1997年 / 358卷 / 01期
关键词：
D O I：
10.1007/s002180050276
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 neutron-deficient Po-190 and Bi-189 isotopes have been produced in the 2n respectively p2n channels of the Ti-48 + Sm-144 reaction. Cross sections for different reaction channels are given. For Po-190, improved values of alpha-energy E-alpha = 7550(15) keV and half-life T-1/2 = 1.9(-0.4)(+0.6) ms were measured. By using correlated alpha-decay chains an alpha-branching ratio of 0.50(25) was deduced for Pb-186. The reduced alpha-width systematic is extended for both of these isotopes, confirming a persistence of the saturation towards the lighter Po isotopes and the absence of any anomalies for the neutron-deficient Pb isotopes. For Bi-189 improved values of E-alpha = 7300(15) keV and T-1/2 = 4.8(5) ms were measured.
引用
收藏
页码：63 / 68
页数：6
相关论文
共 50 条
  • [1] ALPHA-DECAY OF NEUTRON-DEFICIENT ISOTOPES OF BI
    VAKHTEL, VM
    KADMENSKII, SG
    MARTYNOV, AA
    FURMAN, VI
    SOVIET JOURNAL OF NUCLEAR PHYSICS-USSR, 1978, 28 (05): : 639 - 644
  • [2] Evidence for collectivity in the light Po isotopes: The alpha-decay of Po-190
    Batchelder, JC
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1997, 213 : 16 - NUCL
  • [3] α-decay characteristics of neutron-deficient 190,192Po nuclei and alpha branching ratios of 186,188Pb isotopes
    Andreyev, AN
    Bijnens, N
    Huyse, M
    Van Duppen, P
    Leino, M
    Enqvist, T
    Kuusiniemi, P
    Trzaska, W
    Uusitalo, J
    Fotiades, N
    Cizewski, JA
    McNabb, DP
    Ding, KY
    Davids, CN
    Janssens, RVF
    Seweryniak, D
    Carpenter, MP
    Amro, H
    Decrock, P
    Reiter, P
    Nisius, D
    Brown, LT
    Fischer, S
    Lauritsen, T
    Wauters, J
    Bingham, CR
    Conticchio, LF
    JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 1999, 25 (04) : 835 - 837
  • [4] ALPHA-DECAY OF NEUTRON-DEFICIENT ISOTOPES OF TUNGSTEN
    EASTHAM, DA
    GRANT, IS
    NUCLEAR PHYSICS A, 1973, A208 (01) : 119 - 129
  • [5] ALPHA-DECAY OF NEUTRON-DEFICIENT ASTATINE ISOTOPES
    HOFF, RW
    ASARO, F
    PERLMAN, I
    JOURNAL OF INORGANIC & NUCLEAR CHEMISTRY, 1963, 25 (11): : 1303 - 1319
  • [6] Fine structure in the alpha-decay of the neutron-deficient 191Po and 191Bi isotopes
    Andreyev, AN
    Bijnens, N
    Cocks, JF
    Eskola, K
    Helariutta, K
    Huyse, M
    Kettunen, H
    Kuusiniemi, P
    Leino, M
    Trzaska, WH
    Van Duppen, P
    Wyss, R
    ACTA PHYSICA POLONICA B, 1999, 30 (05): : 1255 - 1262
  • [7] ALPHA-DECAY PROPERTIES OF NEUTRON-DEFICIENT ISOTOPES OF EMANATION
    VALLI, K
    NURMIA, MJ
    HYDE, EK
    PHYSICAL REVIEW, 1967, 159 (04): : 1013 - &
  • [8] ALPHA-DECAY OF NEUTRON-DEFICIENT RADON AND POLONIUM ISOTOPES
    HORNSHOJ, P
    WILSKY, K
    HANSEN, PG
    LINDAHL, A
    NIELSEN, OB
    NUCLEAR PHYSICS A, 1971, A163 (01) : 277 - &
  • [9] ALPHA-DECAY OF NEUTRON-DEFICIENT YTTERBIUM ISOTOPES AND THEIR DAUGHTERS
    HAGBERG, E
    HANSEN, PG
    HARDY, JC
    HORNSHOJ, P
    JONSON, B
    MATTSSON, S
    TIDEMANDPETERSSON, P
    NUCLEAR PHYSICS A, 1977, 293 (1-2) : 1 - 9
  • [10] ALPHA-DECAY OF NEUTRON-DEFICIENT RHENIUM AND OSMIUM ISOTOPES
    SCHREWE, UJ
    HAGBERG, E
    SCHMEING, H
    HARDY, JC
    KOSLOWSKY, VT
    SHARMA, KS
    ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1984, 315 (01): : 49 - 55
12345