Total cross-section measurements for positrons and electrons colliding with alkane molecules: Normal hexane and cyclohexane

被引:37
作者
Sueoka, O [1 ]
Makochekanwa, C [1 ]
Tanino, H [1 ]
Kimura, M [1 ]
机构
[1] Yamaguchi Univ, Fac Engn, Ube, Yamaguchi 7558611, Japan
来源
PHYSICAL REVIEW A | 2005年 / 72卷 / 04期
关键词
D O I
10.1103/PhysRevA.72.042705
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Total cross sections (TCSs) for 0.2-1000 eV positrons and 0.4-1000 eV electrons colliding with normal hexane and cyclohexane molecules are reported. For positron scattering, low-lying peaks at 0.8 eV for normal hexane and 1.6 eV for cyclohexane are observed. For both molecules, positron TCSs are larger than electron TCSs below 2.8 eV; for electron scattering, the main resonance peak in the TCS curve is at 7.5 eV, followed by a shoulder at about 22 eV. TCSs for normal hexane are larger than those for cyclohexane for both positrons and electrons over all the energy range. Striking similarities, more pronounced for electron impact, have been observed between c-hexane and benzene TCSs and are attributed to the similarity in molecular structure between these two molecules, whereby each has a hexagonal ring based on the six C atoms.
引用
收藏
页数:8
相关论文
共 31 条
[1]   ELASTIC AND VIBRATIONAL-EXCITATION CROSS-SECTIONS FOR ELECTRON COLLISIONS WITH PROPANE [J].
BOESTEN, L ;
DILLON, MA ;
TANAKA, H ;
KIMURA, M ;
SATO, H .
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1994, 27 (09) :1845-1855
[2]   ELASTIC DCS FOR E + CH4 COLLISIONS, 1.5-100 EV [J].
BOESTEN, L ;
TANAKA, H .
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1991, 24 (04) :821-832
[3]   THE ENERGY-DEPENDENCE OF POSITRONIUM FORMATION IN GASES [J].
CHARLTON, M ;
GRIFFITH, TC ;
HEYLAND, GR ;
LINES, KS ;
WRIGHT, GL .
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1980, 13 (24) :L757-L760
[4]   A computational analysis of low-energy electron scattering from gaseous cyclopropane [J].
Curík, R ;
Gianturco, FA .
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2002, 35 (03) :717-732
[5]   TOTAL CROSS-SECTION MEASUREMENTS FOR POSITRON AND ELECTRON-SCATTERING ON HYDROCARBONS BETWEEN 5-EV AND 400-EV [J].
FLOEDER, K ;
FROMME, D ;
RAITH, W ;
SCHWAB, A ;
SINAPIUS, G .
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1985, 18 (16) :3347-3359
[6]   TOTAL CROSS-SECTION MEASUREMENTS FOR POSITRONS AND ELECTRONS COLLIDING WITH MOLECULES .2. HCL [J].
HAMADA, A ;
SUEOKA, O .
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1994, 27 (20) :5055-5064
[7]  
HARTE RA, 1981, MOL 3 DIMENSIONS GUI, P1
[8]   TOTAL-CROSS-SECTION MEASUREMENTS FOR POSITRONS AND ELECTRONS COLLIDING WITH H-2, N-2, AND CO2 [J].
HOFFMAN, KR ;
DABABNEH, MS ;
HSIEH, YF ;
KAUPPILA, WE ;
POL, V ;
SMART, JH ;
STEIN, TS .
PHYSICAL REVIEW A, 1982, 25 (03) :1393-1403
[9]   The dissociation of benzene (C6H6), pyridine (C5H5N) and cyclohexane (C6H12) by electron impact [J].
Hustrulid, A ;
Kusch, P ;
Tate, JT .
PHYSICAL REVIEW, 1938, 54 (12) :1037-1044
[10]   Electron scattering from perfluorocyclobutane (c-C4F8) [J].
Jelisavcic, M ;
Panajotovic, R ;
Kitajima, M ;
Hoshino, M ;
Tanaka, H ;
Buckman, SJ .
JOURNAL OF CHEMICAL PHYSICS, 2004, 121 (11) :5272-5280