Substitution effects in elastic electron collisions with CH3 X (X=F, Cl, Br, I) molecules

H. Kato; T. Asahina; H. Masui; M. Hoshino; H. Tanaka; H. Cho; O. Ingólfsson; F. Blanco; G. Garcia; S. J. Buckman; M. J. Brunger

doi:10.1063/1.3319761

Substitution effects in elastic electron collisions with CH₃ X (X=F, Cl, Br, I) molecules

H. Kato
, T. Asahina
, H. Masui
, M. Hoshino
, H. Tanaka
, H. Cho
, O. Ingólfsson
, F. Blanco
, G. Garcia
, S. J. Buckman
, M. J. Brunger

Raunvísindadeild

Háskóli Íslands

Rannsóknarafurð: Framlag til fræðitímarits › Grein › ritrýni

Útdráttur

We report absolute elastic differential, integral, and momentum transfer cross sections for electron interactions with the series of molecules CH ₃ X (X=F, Cl, Br, I). The incident electron energy range is 50-200 eV, while the scattered electron angular range for the differential measurements is 15°-150°. In all cases the absolute scale of the differential cross sections was set using the relative flow method with helium as the reference species. Substitution effects on these cross sections, as we progress along the halomethane series CH₃ F, CH₃ Cl, CH₃ Br, and CH₃ I, are investigated as a part of this study. In addition, atomic-like behavior in these scattering systems is also considered by comparing these halomethane elastic cross sections to results from other workers for the corresponding noble gases Ne, Ar, Kr, and Xe, respectively. Finally we report results for calculations of elastic differential and integral cross sections for electrons scattering from each of the CH₃ X species, within an optical potential method and assuming a screened corrected independent atom representation. The level of agreement between these calculations and our measurements was found to be quite remarkable in each case.

Upprunalegt tungumál	Enska
Númer greinar	074309
Fræðitímarit	Journal of Chemical Physics
Bindi	132
Númer tölublaðs	7
DOI	https://doi.org/10.1063/1.3319761
Útgáfustaða	Útgefið - 2010

Athugasemd

Funding Information: This work was conducted under the support of the Japanese Ministry of Education, Sport, Culture and Technology and also by the Ministerio de Educación Ciencia e Innovación (Plan Nacional de Fisica, Project No. FIS2006-00702), the Consejo de Seguridad Nuclear and the European Science Foundation (COST Action No. CM0601). Additional support from the Australian Research Council, through its Centres of Excellence Program, and the Korea Science and Engineering Foundation (Grant No. 2009-0052415) is further noted. One of us (H.K.) also acknowledges the Japan Society for the Promotion of Science (JSPS) for his fellowships as grants-in-aid for scientific research and, most recently, to facilitate his visit to Flinders University and the ANU. Finally, we all thank Professor Yukikazu Itikawa for his important comments on this work.

Aðgangur að skjali

10.1063/1.3319761

Vitna í þetta

@article{30a7e01067fb4810bf20f76714d63e4e,

title = "Substitution effects in elastic electron collisions with CH3 X (X=F, Cl, Br, I) molecules",

abstract = "We report absolute elastic differential, integral, and momentum transfer cross sections for electron interactions with the series of molecules CH 3 X (X=F, Cl, Br, I). The incident electron energy range is 50-200 eV, while the scattered electron angular range for the differential measurements is 15°-150°. In all cases the absolute scale of the differential cross sections was set using the relative flow method with helium as the reference species. Substitution effects on these cross sections, as we progress along the halomethane series CH3 F, CH3 Cl, CH3 Br, and CH3 I, are investigated as a part of this study. In addition, atomic-like behavior in these scattering systems is also considered by comparing these halomethane elastic cross sections to results from other workers for the corresponding noble gases Ne, Ar, Kr, and Xe, respectively. Finally we report results for calculations of elastic differential and integral cross sections for electrons scattering from each of the CH3 X species, within an optical potential method and assuming a screened corrected independent atom representation. The level of agreement between these calculations and our measurements was found to be quite remarkable in each case.",

author = "H. Kato and T. Asahina and H. Masui and M. Hoshino and H. Tanaka and H. Cho and O. Ing{\'o}lfsson and F. Blanco and G. Garcia and Buckman, \{S. J.\} and Brunger, \{M. J.\}",

note = "Funding Information: This work was conducted under the support of the Japanese Ministry of Education, Sport, Culture and Technology and also by the Ministerio de Educaci{\'o}n Ciencia e Innovaci{\'o}n (Plan Nacional de Fisica, Project No. FIS2006-00702), the Consejo de Seguridad Nuclear and the European Science Foundation (COST Action No. CM0601). Additional support from the Australian Research Council, through its Centres of Excellence Program, and the Korea Science and Engineering Foundation (Grant No. 2009-0052415) is further noted. One of us (H.K.) also acknowledges the Japan Society for the Promotion of Science (JSPS) for his fellowships as grants-in-aid for scientific research and, most recently, to facilitate his visit to Flinders University and the ANU. Finally, we all thank Professor Yukikazu Itikawa for his important comments on this work.",

year = "2010",

doi = "10.1063/1.3319761",

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T1 - Substitution effects in elastic electron collisions with CH3 X (X=F, Cl, Br, I) molecules

AU - Kato, H.

AU - Asahina, T.

AU - Masui, H.

AU - Hoshino, M.

AU - Tanaka, H.

AU - Cho, H.

AU - Ingólfsson, O.

AU - Blanco, F.

AU - Garcia, G.

AU - Buckman, S. J.

AU - Brunger, M. J.

N1 - Funding Information: This work was conducted under the support of the Japanese Ministry of Education, Sport, Culture and Technology and also by the Ministerio de Educación Ciencia e Innovación (Plan Nacional de Fisica, Project No. FIS2006-00702), the Consejo de Seguridad Nuclear and the European Science Foundation (COST Action No. CM0601). Additional support from the Australian Research Council, through its Centres of Excellence Program, and the Korea Science and Engineering Foundation (Grant No. 2009-0052415) is further noted. One of us (H.K.) also acknowledges the Japan Society for the Promotion of Science (JSPS) for his fellowships as grants-in-aid for scientific research and, most recently, to facilitate his visit to Flinders University and the ANU. Finally, we all thank Professor Yukikazu Itikawa for his important comments on this work.

PY - 2010

Y1 - 2010

N2 - We report absolute elastic differential, integral, and momentum transfer cross sections for electron interactions with the series of molecules CH 3 X (X=F, Cl, Br, I). The incident electron energy range is 50-200 eV, while the scattered electron angular range for the differential measurements is 15°-150°. In all cases the absolute scale of the differential cross sections was set using the relative flow method with helium as the reference species. Substitution effects on these cross sections, as we progress along the halomethane series CH3 F, CH3 Cl, CH3 Br, and CH3 I, are investigated as a part of this study. In addition, atomic-like behavior in these scattering systems is also considered by comparing these halomethane elastic cross sections to results from other workers for the corresponding noble gases Ne, Ar, Kr, and Xe, respectively. Finally we report results for calculations of elastic differential and integral cross sections for electrons scattering from each of the CH3 X species, within an optical potential method and assuming a screened corrected independent atom representation. The level of agreement between these calculations and our measurements was found to be quite remarkable in each case.

AB - We report absolute elastic differential, integral, and momentum transfer cross sections for electron interactions with the series of molecules CH 3 X (X=F, Cl, Br, I). The incident electron energy range is 50-200 eV, while the scattered electron angular range for the differential measurements is 15°-150°. In all cases the absolute scale of the differential cross sections was set using the relative flow method with helium as the reference species. Substitution effects on these cross sections, as we progress along the halomethane series CH3 F, CH3 Cl, CH3 Br, and CH3 I, are investigated as a part of this study. In addition, atomic-like behavior in these scattering systems is also considered by comparing these halomethane elastic cross sections to results from other workers for the corresponding noble gases Ne, Ar, Kr, and Xe, respectively. Finally we report results for calculations of elastic differential and integral cross sections for electrons scattering from each of the CH3 X species, within an optical potential method and assuming a screened corrected independent atom representation. The level of agreement between these calculations and our measurements was found to be quite remarkable in each case.

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DO - 10.1063/1.3319761

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