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
  • [21] Adsorption of CH4/CO2/N2 by different functional groups in coal
    Jia, Jinzhang
    Wu, Yumo
    Zhao, Dan
    Li, Bin
    Wang, Dongming
    Wang, Fengxiao
    FUEL, 2023, 335
  • [22] Enhancement of CO2/N2 selectivity in a metal-organic framework by cavity modification
    Bae, Youn-Sang
    Farha, Omar K.
    Hupp, Joseph T.
    Snurr, Randall Q.
    JOURNAL OF MATERIALS CHEMISTRY, 2009, 19 (15) : 2131 - 2134
  • [23] Total and ionization cross-sections of N2 and CO by positron impact: Theoretical investigations
    Kothari, Harshit N.
    Joshipura, K. N.
    PRAMANA-JOURNAL OF PHYSICS, 2011, 76 (03): : 477 - 488
  • [24] Many-Body Theory Calculations of Positron Scattering and Annihilation in H2, N2, and CH4
    Rawlins, C. M.
    Hofierka, J.
    Cunningham, B.
    Patterson, C. H.
    Green, D. G.
    PHYSICAL REVIEW LETTERS, 2023, 130 (26)
  • [25] Alignment-Dependent Ionization of N2, O2, and CO2 in Intense Laser Fields
    Petretti, Simon
    Vanne, Yulian V.
    Saenz, Alejandro
    Castro, Alberto
    Decleva, Piero
    PHYSICAL REVIEW LETTERS, 2010, 104 (22)
  • [26] Transition metal cation-exchanged SSZ-13 zeolites for CO2 capture and separation from N2
    Sun, Mingzhe
    Gu, Qinfen
    Hanif, Aamir
    Wang, Tianqi
    Shang, Jin
    CHEMICAL ENGINEERING JOURNAL, 2019, 370 : 1450 - 1458
  • [27] Field-Time Breakdown Characteristics of Air, N2, CO2, and SF6
    Liu, Ting
    Timoshkin, Igor, V
    MacGregor, Scott J.
    Wilson, Mark P.
    Given, Martin J.
    Bonifaci, Nelly
    Hanna, Rachelle
    IEEE TRANSACTIONS ON PLASMA SCIENCE, 2020, 48 (10) : 3321 - 3331
  • [28] Flexible ZIFs: probing guest-induced flexibility with CO2, N2 and Ar adsorption
    Noguera-Diaz, Antonio
    Villarroel-Rocha, Jhonny
    Ting, Valeska P.
    Bimbo, Nuno
    Sapag, Karim
    Mays, Timothy J.
    JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY, 2019, 94 (12) : 3787 - 3792
  • [29] PERMEABILITY, SELECTIVITY AND DISTINGUISHING CRITERION OF SILICONE MEMBRANE FOR SUPERCRITICAL CO2 AND N2 IN THE POROUS MEDIA
    Abidoye, Luqman K.
    Das, Diganta B.
    JOURNAL OF POROUS MEDIA, 2019, 22 (08) : 1027 - 1041
  • [30] Density and refractive index of binary CH4, N2 and CO2 ice mixtures
    Luna, R.
    Satorre, M. A.
    Domingo, M.
    Millan, C.
    Santonja, C.
    ICARUS, 2012, 221 (01) : 186 - 191
12345