Production of collimated positronium by positron scattering from CO2, N2 and Xe

被引：9
|
作者：
Shipman, M. [1 ]
Brawley, S. [1 ]
Leslie, D. E. [1 ]
Armitage, S. [1 ]
Laricchia, G. [1 ]
机构：
[1] UCL, UCL Dept Phys & Astron, London WC1E 6BT, England
来源：
EUROPEAN PHYSICAL JOURNAL D | 2012年 / 66卷 / 04期
基金：
英国工程与自然科学研究理事会;
关键词：
IMPACT IONIZATION; PS BEAM; ATOMS; MOLECULES; GASES; COLLISIONS;
D O I：
10.1140/epjd/e2012-20753-9
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The efficiency for collimated positronium production by charge-exchange in positron collisions with gaseous targets has been investigated in the range 20-396 eV. At 250 and 396 eV, CO2 has been found to be approximately twice as efficient as N-2, the previous best neutralising gas at high energies. The efficiency from Xe, whilst lower at low energies, becomes comparable to that from H-2 at around 100-120 eV; at similar to 250 eV, it is an order of magnitude lower.
引用
收藏
页数：5
相关论文
共 50 条
  • [41] Electrocatalytic construction of the C–N bond from the derivates of CO2 and N2
    Yanmei Huang
    Yuting Wang
    Yongmeng Wu
    Yifu Yu
    Bin Zhang
    Science China(Chemistry), 2022, 65 (02) : 204 - 206
  • [42] Positron total cross sections for collisions with N2 and CO2 at 30-3000 eV
    施德恒
    刘玉芳
    孙金锋
    朱遵略
    杨向东
    ChineseOpticsLetters, 2006, (03) : 125 - 127
  • [43] POLYMER PASSES UP N2 FOR CO2
    不详
    CHEMICAL & ENGINEERING NEWS, 2013, 91 (03) : 26 - 26
  • [44] Dissociation enthalpies and phase equilibrium for TBAB semi-clathrate hydrates of N2, CO2, N2 + CO2 and CH4 + CO2
    Deschamps, Johnny
    Dalmazzone, Didier
    JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 2009, 98 (01) : 113 - 118
  • [45] Dissociation enthalpies and phase equilibrium for TBAB semi-clathrate hydrates of N2, CO2, N2 + CO2 and CH4 + CO2
    Johnny Deschamps
    Didier Dalmazzone
    Journal of Thermal Analysis and Calorimetry, 2009, 98 : 113 - 118
  • [46] A Research Note on the Adsorption of CO2 and N2
    Zhang Zhongzheng
    Ruan Hongzheng
    Zhou Yaping
    Su Wei
    Sun Yan
    Zhou Li
    CHINESE JOURNAL OF CHEMICAL ENGINEERING, 2011, 19 (05) : 733 - 737
  • [47] Analysis of solubility on N2 in liquid CO2
    Yang W.
    Li S.
    Feng Y.
    Shan G.
    Zhang X.
    Dongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Southeast University (Natural Science Edition), 2016, 46 (04): : 776 - 781
  • [48] Streamer propagation in CO2 and N2/CO2 mixtures at atmospheric pressure
    Omori, Kento
    Ono, Ryo
    Komuro, Atsushi
    Plasma Sources Science and Technology, 2024, 33 (12)
  • [49] Hafnocene puts N2 and CO2 to work
    不详
    CHEMICAL & ENGINEERING NEWS, 2007, 85 (03) : 45 - 45
  • [50] SPECTROSCOPIC DETERMINATION OF NEUTRAL GAS TEMPERATURE IN N2 AND CO2 + N2 DISCHARGES
    ERYBASHEVA, LF
    OPTICS AND SPECTROSCOPY-USSR, 1971, 30 (02): : 203 - +
12345