Energy-resolved positron annihilation in flight in solid targets

被引：12
|
作者：
Weber, MH [1 ]
Hunt, AW
Golovchenko, JA
Lynn, KG
机构：
[1] Washington State Univ, Dept Phys, Pullman, WA 99164 USA
[2] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA
[3] Rowland Inst Sci Inc, Cambridge, MA 02142 USA
来源：
PHYSICAL REVIEW LETTERS | 1999年 / 83卷 / 22期
关键词：
D O I：
10.1103/PhysRevLett.83.4658
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Energy-resolved two-quantum annihilation in flight of positrons with energies ranging from 10 to 71.6 keV was observed. An energy-dispersive two-detector coincidence system was used to observe the sum and difference energies of the gamma rays from annihilating positron-electron pairs. For positrons penetrating carbon foils the c/upsilon dependence of the annihilation cross section is confirmed. Spectra obtained from gold-coated carbon foils show evidence of in-flight annihilation with gold M-shell electrons.
引用
收藏
页码：4658 / 4661
页数：4
相关论文
共 50 条
  • [1] Energy-resolved positron annihilation for molecules
    Barnes, LD
    Gilbert, SJ
    Surko, CM
    PHYSICAL REVIEW A, 2003, 67 (03):
  • [2] Energy-resolved positron annihilation for molecules
    Barnes, L.D.
    Gilbert, S.J.
    Surko, C.M.
    2003, American Physical Society (67):
  • [3] Energy-resolved positron annihilation rates for molecules
    Barnes, L. D.
    Young, J. A.
    Surko, C. M.
    PHYSICAL REVIEW A, 2006, 74 (01):
  • [4] In flight positron annihilation in thin targets
    Hunt, AW
    Weber, MH
    Golovchenko, JA
    Lynn, KG
    APPLIED SURFACE SCIENCE, 1999, 149 (1-4) : 282 - 286
  • [5] DESIGN CONSIDERATIONS IN ENERGY-RESOLVED TIME-OF-FLIGHT MASS-SPECTROMETRY
    GIANNAKOPULOS, AE
    REYNOLDS, DJ
    CHAN, TWD
    COLBURN, AW
    DERRICK, PJ
    INTERNATIONAL JOURNAL OF MASS SPECTROMETRY AND ION PROCESSES, 1994, 131 : 67 - 86
  • [6] ENERGY-RESOLVED NEUTRON RADIOGRAPHY
    ANDREANI, C
    BUONTEMPO, U
    MAYERS, J
    RICCI, FP
    PHYSICA B, 1991, 174 (1-4): : 572 - 576
  • [7] ELECTRON-POSITRON ANNIHILATION IN FLIGHT
    COLGATE, SA
    GILBERT, FC
    PHYSICAL REVIEW, 1953, 89 (04): : 790 - 792
  • [8] An energy-resolved atomic scanning probe
    Gruss, Daniel
    Chien, Chih-Chun
    Barreiro, Julio T.
    Di Ventra, Massimiliano
    Zwolak, Michael
    NEW JOURNAL OF PHYSICS, 2018, 20
  • [9] POSITRON ANNIHILATION IN SOLID ARGON
    ROSE, KL
    DEBENEDETTI, S
    PHYSICAL REVIEW, 1965, 138 (3A): : A927 - +
  • [10] In-Flight Observation of Positron Annihilation by ILDAS
    Kochkin, P.
    Sarria, D.
    Skeie, C.
    van Deursen, A. P. J.
    de Boer, A., I
    Bardet, M.
    Allasia, C.
    Flourens, F.
    Ostgaard, N.
    JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2018, 123 (15) : 8074 - 8090
12345