Total ionization cross sections by electron impact of CFx (x=1-3) and NFx (x=1-3)

被引:4
作者
Kumar, Manoj [1 ]
Sharma, Sachin Kumar [1 ]
Kumar, Yogesh [2 ]
Kumar, Rajeev [3 ]
机构
[1] Meerut Univ, Dept Phys, Meerut 250001, Uttar Pradesh, India
[2] DAV Coll, Dept Phys, Muzaffarnagar 251001, India
[3] DJ Coll, Dept Phys, Baraut 250611, Baghpat, India
关键词
Ionization cross-section; Electron impact; MOLECULES;
D O I
10.1016/j.cplett.2019.06.068
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
In the present investigation, the Plane-Wave Born Approximation (PWBA) [J. Phys. B At. Mol. Opt. 32 (1999) 3147] has been used to calculate the total ionization cross sections by electron impact of fluorides CFx and NFx (x = 1-3) from the threshold of ionization to 2 keV. The PWBA requires the continuum generalised oscillator strength. Here, we have used continuum generalised oscillator strength given by the statistical model of Weizsacker-Williams and continuum optical oscillator strength approximated by Kim and Rudd. Khare-BEB model has also been used to calculate total ionization cross sections. The calculated cross sections are compared with the previously available theoretical as well as experimental results. The present calculations are found in satisfactory agreement with the available experimental results.
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页数:5
相关论文
共 18 条
[1]   Electron-impact total ionization cross sections of silicon and germanium hydrides [J].
Ali, MA ;
Kim, YK ;
Hwang, W ;
Weinberger, NM ;
Rudd, ME .
JOURNAL OF CHEMICAL PHYSICS, 1997, 106 (23) :9602-9608
[2]   Total and ionization cross sections of electron scattering by fluorocarbons [J].
Antony, BK ;
Joshipura, KN ;
Mason, NJ .
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2005, 38 (03) :189-205
[3]   Theoretical determination of absolute electron-impact ionization cross sections of molecules [J].
Deutsch, H ;
Becker, K ;
Matt, S ;
Märk, TD .
INTERNATIONAL JOURNAL OF MASS SPECTROMETRY, 2000, 197 :37-69
[4]   Ionization of NF3 by electron impact [J].
Haaland, PD ;
Jiao, CQ ;
Garscadden, A .
CHEMICAL PHYSICS LETTERS, 2001, 340 (5-6) :479-483
[5]   Calculated cross sections for electron collisions with NF3, NF2 and NF with applications to remote plasma sources [J].
Hamilton, James R. ;
Tennyson, Jonathan ;
Huang, Shuo ;
Kushner, Mark J. .
PLASMA SOURCES SCIENCE & TECHNOLOGY, 2017, 26 (06)
[6]   Total electron-impact ionization cross-sections of CFx and NFx (x=1-3) [J].
Huo, WM ;
Tarnovsky, V ;
Becker, KH .
CHEMICAL PHYSICS LETTERS, 2002, 358 (3-4) :328-336
[7]   Partial Ionization Cross Sections of Organic Molecules [J].
Irikura, Karl K. .
JOURNAL OF RESEARCH OF THE NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY, 2017, 122 :1-67
[8]  
Khare S.P., 2001, Introduction to the Theory of Collisions of Electrons with Atoms and Molecules
[9]   Electron impact ionization of methane [J].
Khare, SP ;
Sharma, MK ;
Tomar, S .
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1999, 32 (13) :3147-3156
[10]   BINARY-ENCOUNTER-DIPOLE MODEL FOR ELECTRON-IMPACT IONIZATION [J].
KIM, YK ;
RUDD, ME .
PHYSICAL REVIEW A, 1994, 50 (05) :3954-3967