Abstract
The production of low-energy H− by electron impact with CH4, C2H2, C2H4, C2H6 and C3H8 has been studied within electron energy range 0−20 eV. The dissociative electron attachment and dipolar dissociation (also known as ion pair production) are contributing to formation of H− in this energy range. A special ion extraction system for collection of low-energy light ions was used. Low-energy H− production rates for all studied molecules are found lower yet similar to those for hydrogen at 14 eV dissociative attachment maximum. A vertical onset of ion yield is observed for the dissociative attachment in CH4, C2H2, and C3H8. The production rate of H− through the dipolar dissociation is observed to be high in the case of C2H4.
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References
W. Jacob, J. Nucl. Mat. 337-339, 839 (2005)
D. Reiter, B. Küppers, R.K. Janev, Phys. Scr. T138, 014014 (2009)
D.A. Williams, J. Phys.: Conf. Ser. 6, 1 (2005)
R.P. Wayne, Chemistry of Atmospheres (Oxford University Press, Oxford, 2000)
V. Vuitton, P. Lavvas, R.V. Yelle, M. Galand, A. Wellbrock, G.R. Lewis, A.J. Coates, J.-E. Wahlund, Planet. Space Sci. 57, 1558 (2009)
M.V. Petrova, F.A. Williams, Combust. Flame 144, 526 (2006)
M.N.R. Ashfold, P.W. May, J.R. Petherbridge, K.N. Rosser, J.A. Smith, Y.A. Mankelevich, N.V. Suetin, Phys. Chem. Chem. Phys. 3, 3471 (2001)
M. Bacal, Nucl. Fusion 46, S250 (2006)
H. Bruhns, H. Kreckel, K. Miller, M. Lestinsky, B. Seredyuk, W. Mitthumsiri, B.L. Schmitt, M. Schnell, X. Urbain, M.L. Rappaport, C.C. Havener, D.W. Savin, Rev. Sci. Instrum. 81, 013112 (2010)
N. Harada, E. Herbst, Astrophys. J. 685, 272 (2008)
M. Allan, S.F. Wong, Phys. Rev. Lett. 41, 1791 (1978)
L.V. Trepka, H. Neuert, Z. Naturforsch. A 18, 1295 (1963)
J. Rutkowsky, H. Drost, H.-J. Spangenberg, Ann. Phys. 37, 259 (1980)
P. Rawat, V.S. Prabhudesai, M.A. Rahman, N. Bhargava Ram, E. Krishnakumar, Int. J. Mass Spectrom. 277, 69 (2008)
N. Bhargava Ram, E. Krishnakumar, Chem. Phys. Lett. 511, 22 (2011)
O. May, J. Fedor, M. Allan, Phys. Rev. A 80, 012706 (2009)
T.E. Sharp, J.T. Dowell, Int. J. Mass Spectrom. 46, 1530 (1967)
D. Rapp, D.D. Briglia, J. Chem. Phys. 43, 1480 (1965)
K. Mitsuke, S. Suzuki, T. Imamura, I. Koyano, J. Chem. Phys. 92, 6556 (1990)
K. Mitsuke, H. Hattori, H. Yoshida, J. Chem. Phys. 99, 6642 (1993)
R.A. Mackie, A.M. Sands, S.W.J. Scully, D.M.P. Holland, D.A. Shaw, K.F. Dunn, C.J. Latimer, J. Phys. B At. Mol. Opt. Phys. 35, 1061 (2002)
R.A. Mackie, S.W.J. Scully, A.M. Sands, R. Browning, K.F. Dunn, C.J. Latimer, Int. J. Mass Spectrom. 223-224, 67 (2003)
S. Markelj, I. Čadež, Z. Rupnik, Int. J. Mass Spectrom. 275, 64 (2008)
I. Čadež, S. Markelj, Z. Rupnik, P. Pelicon, J. Phys.: Conf. Ser. 133, 012029 (2008)
S. Markelj, I. Čadež, J. Chem. Phys. 134, 124707 (2011)
D. Rapp, T.E. Sharp, D.D. Briglia, Phys. Rev. Lett. 14, 533 (1965)
E. Krishnakumar, S. Denifl, I. Čadež, S. Markelj, N.J. Mason, Phys. Rev. Lett. 106, 243201 (2011)
S.T. Chourou, A.E. Orel, Phys. Rev. A 77, 042709 (2008)
J.C.J. Thynne, K.A.G. MacNeil, J. Phys. Chem. 75, 2584 (1967)
V.S. Prabhudesai, A.H. Kelkar, D. Nandi, E. Krishnakumar, Phys. Rev. Lett. 95, 143202 (2005)
H.N. Varambhia, J.J. Munro, J. Tennyson, Int. J. Mass Spectrom. 271, 1 (2008)
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Čadež, I., Markelj, S. & Rupnik, Z. Low energy H− production by electron collision with small hydrocarbons. Eur. Phys. J. D 66, 73 (2012). https://doi.org/10.1140/epjd/e2012-20651-2
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DOI: https://doi.org/10.1140/epjd/e2012-20651-2