学术探索
学术期刊
新闻热点
数据分析
智能评审

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

被引：22
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 23 条
  • [1] 4-PI-IONIZATION CHAMBER - A DETECTOR FOR A KINEMATIC SEPARATOR OF HEAVY-ION REACTION-PRODUCTS
    ANDREYEV, AN
    BOGDANOV, DD
    CHEPIGIN, VI
    GORSHKOV, VA
    MIKHAILOV, KV
    KABACHENKO, AP
    POPEKO, GS
    SARO, S
    TERAKOPIAN, GM
    YEREMIN, AV
    ZEINALOV, SS
    [J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1993, 330 (1-2) : 125 - 131
  • [2] EXCITATION-ENERGY OF THE PI-S(1/2) INTRUDER STATE IN BI-189
    BATCHELDER, JC
    TOTH, KS
    MOLTZ, DM
    OGNIBENE, TJ
    ROWE, MW
    BINGHAM, CR
    ZGANJAR, EF
    ZIMMERMAN, BE
    [J]. PHYSICAL REVIEW C, 1995, 52 (04): : 1807 - 1809
  • [3] Determination of the Po-190 alpha reduced width
    Batchelder, JC
    Toth, KS
    Zganjar, EF
    Moltz, DM
    Bingham, CR
    Ognibene, TJ
    Powell, J
    Rowe, MW
    [J]. PHYSICAL REVIEW C, 1996, 54 (02): : 949 - 951
  • [4] BATCHELDER JC, COMMUNICATION
  • [5] Fine structure in the alpha decay of Po-192
    Bijnens, N
    Ahmad, I
    Andreyev, AN
    Batchelder, JC
    Bingham, CR
    Blumenthal, D
    Busse, BC
    Chen, XS
    Conticchio, LF
    Davids, CN
    Huyse, M
    Janssens, RVF
    Mantica, P
    Penttila, H
    Reviol, W
    Seweryniak, D
    VanDuppen, P
    Walters, WB
    Wauters, J
    Zimmerman, BE
    [J]. ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1996, 356 (01): : 3 - 4
  • [6] FINE-STRUCTURE IN THE ALPHA-DECAY OF EVEN-EVEN NUCLEI - EXPERIMENTAL-EVIDENCE FOR THE STABILITY OF THE Z=82 MAGIC SHELL
    BIJNENS, N
    CORREIA, JG
    HUYSE, M
    HWANG, HY
    KIRCHNER, R
    REUSEN, G
    ROECKL, E
    VANDUPPEN, P
    VONSCHWARZENBERG, J
    WAUTERS, J
    [J]. PHYSICA SCRIPTA, 1995, T56 : 110 - 113
  • [7] HUYSE M, 1991, THESIS KU LEUVEN, P77
  • [8] METAL-ION BEAMS FROM AN ECR ION-SOURCE USING VOLATILE COMPOUNDS
    KOIVISTO, H
    ARJE, J
    NURMIA, M
    [J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1994, 94 (03) : 291 - 296
  • [9] GAS-FILLED RECOIL SEPARATOR FOR STUDIES OF HEAVY-ELEMENTS
    LEINO, M
    AYSTO, J
    ENQVIST, T
    HEIKKINEN, P
    JOKINEN, A
    NURMIA, M
    OSTROWSKI, A
    TRZASKA, WH
    UUSITALO, J
    ESKOLA, K
    ARMBRUSTER, P
    NINOV, V
    [J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1995, 99 (1-4) : 653 - 656
  • [10] Alpha decay studies of neutron-deficient radium isotopes
    Leino, M
    Uusitalo, J
    Allatt, RG
    Armbruster, P
    Enqvist, T
    Eskola, K
    Hofmann, S
    Hurskanen, S
    Jokinen, A
    Ninov, V
    Page, RD
    Trzaska, WH
    [J]. ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1996, 355 (02): : 157 - 164
123