Electron momentum spectroscopy studies on atom and molecules using monochromated electrons
Identifieur interne :
006298 ( PascalFrancis/Corpus );
précédent :
006297;
suivant :
006299
Electron momentum spectroscopy studies on atom and molecules using monochromated electrons
Auteurs : M. J. Brunger ;
W. Adcock ;
D. A. Winkler ;
M. T. MichalewiczSource :
-
Journal de physique. IV [ 1155-4339 ] ; 1999.
RBID : Pascal:99-0380772
Descripteurs français
- Pascal (Inist)
- 3480G,
3930,
Etude expérimentale,
Spectrométrie électronique,
Collision électron molécule,
Collision électron atome,
Spectrométrie coïncidence,
Ionisation impact électron,
Domaine énergie 01-10 keV,
Domaine énergie 100-1000 eV,
Argon,
Composé polycyclique,
Cubane.
English descriptors
Abstract
A recently developed electron monochromator has been used in noncoplanar symmetric electron momentum spectroscopy studies on atomic argon and molecular cubane. This (e,2e) monochromator typically produces beam currents of 30μA, at better than 98% focus to the inner Faraday cup, into the interaction region. Contemporary work has concentrated on incident electron beam energies in the range 500-1800 eV. At these energies the overall coincident energy resolution is usually in the range 0.50-0:62 eV (FWHM). Binding energy spectra, at different values of recoil momenta, for both argon and cubane, highlight the performance of the spectrometer and will be presented. In addition, selected momentum distributions (MDs) for the respective valence orbitals in both argon and cubane will also be given. These MDs are compared against theory calculations made within either a distorted wave impulse approximation (argon) or plane wave impulse approximation (cubane) reaction mechanism framework. For the argon calculations Hartree-Fock orbitals were employed, while for cubane an extensive range of density functional theory basis sets were used. Some of the ramifications of the present results will be discussed.
Notice en format standard (ISO 2709)
Pour connaître la documentation sur le format Inist Standard.
| pA |
| A01 | 01 | 1 | | @0 1155-4339 |
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| A03 | | 1 | | @0 J. phys., IV |
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| A05 | | | | @2 9 |
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| A06 | | | | @2 6 |
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| A08 | 01 | 1 | ENG | @1 Electron momentum spectroscopy studies on atom and molecules using monochromated electrons |
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| A09 | 01 | 1 | ENG | @1 International Conference on Coincidence Spectroscopy |
|---|
| A11 | 01 | 1 | | @1 BRUNGER (M. J.) |
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| A11 | 02 | 1 | | @1 ADCOCK (W.) |
|---|
| A11 | 03 | 1 | | @1 WINKLER (D. A.) |
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| A11 | 04 | 1 | | @1 MICHALEWICZ (M. T.) |
|---|
| A12 | 01 | 1 | | @1 LANGLOIS (J.) @9 ed. |
|---|
| A12 | 02 | 1 | | @1 NGUYEN VIEN (G.) @9 ed. |
|---|
| A12 | 03 | 1 | | @1 POCHAT (A.) @9 ed. |
|---|
| A12 | 04 | 1 | | @1 RIOUAL (S.) @9 ed. |
|---|
| A12 | 05 | 1 | | @1 ROBAUX (O.) @9 ed. |
|---|
| A12 | 06 | 1 | | @1 ROUVELLOU (B.) @9 ed. |
|---|
| A12 | 07 | 1 | | @1 TWEED (R. J.) @9 ed. |
|---|
| A14 | 01 | | | @1 Department of Physics and Chemistry, The Flinders University of South Australia, G.P.O. Box 2100 @2 Adelaide, South Australia 5001 @3 AUS @Z 1 aut. @Z 2 aut. |
|---|
| A14 | 02 | | | @1 CSIRO, Division of Molecular Science, Private Bag 10, Clayton South MDC @2 Clayton, Victoria 3169 @3 AUS @Z 3 aut. |
|---|
| A14 | 03 | | | @1 BoM/CSIRO, High Performance Computing and Communication Centre, 24th Floor, 150 Lonsdale Street @2 Melbourne, Victoria 3000 @3 AUS @Z 4 aut. |
|---|
| A15 | 01 | | | @1 Université de Brest, LCEA, 6 avenue V. Le Gorgeu, BP. 809 @2 29285 Brest @3 FRA @Z 1 aut. @Z 2 aut. @Z 3 aut. @Z 4 aut. @Z 5 aut. @Z 6 aut. @Z 7 aut. |
|---|
| A20 | | | | @2 Pr6.115-Pr6.118 |
|---|
| A21 | | | | @1 1999 |
|---|
| A23 | 01 | | | @0 ENG |
|---|
| A43 | 01 | | | @1 INIST @2 125C @5 354000085599250260 |
|---|
| A44 | | | | @0 0000 @1 © 1999 INIST-CNRS. All rights reserved. |
|---|
| A45 | | | | @0 11 ref. |
|---|
| A47 | 01 | 1 | | @0 99-0380772 |
|---|
| A60 | | | | @1 P @2 C |
|---|
| A61 | | | | @0 A |
|---|
| A64 | 01 | 1 | | @0 Journal de physique. IV |
|---|
| A66 | 01 | | | @0 FRA |
|---|
| C01 | 01 | | ENG | @0 A recently developed electron monochromator has been used in noncoplanar symmetric electron momentum spectroscopy studies on atomic argon and molecular cubane. This (e,2e) monochromator typically produces beam currents of 30μA, at better than 98% focus to the inner Faraday cup, into the interaction region. Contemporary work has concentrated on incident electron beam energies in the range 500-1800 eV. At these energies the overall coincident energy resolution is usually in the range 0.50-0:62 eV (FWHM). Binding energy spectra, at different values of recoil momenta, for both argon and cubane, highlight the performance of the spectrometer and will be presented. In addition, selected momentum distributions (MDs) for the respective valence orbitals in both argon and cubane will also be given. These MDs are compared against theory calculations made within either a distorted wave impulse approximation (argon) or plane wave impulse approximation (cubane) reaction mechanism framework. For the argon calculations Hartree-Fock orbitals were employed, while for cubane an extensive range of density functional theory basis sets were used. Some of the ramifications of the present results will be discussed. |
|---|
| C02 | 01 | 3 | | @0 001B30D80G |
|---|
| C02 | 02 | 3 | | @0 001B30I30 |
|---|
| C03 | 01 | 3 | FRE | @0 3480G @2 PAC @4 INC @5 02 |
|---|
| C03 | 02 | 3 | FRE | @0 3930 @2 PAC @4 INC @5 03 |
|---|
| C03 | 03 | 3 | FRE | @0 Etude expérimentale @5 46 |
|---|
| C03 | 03 | 3 | ENG | @0 Experimental study @5 46 |
|---|
| C03 | 04 | 3 | FRE | @0 Spectrométrie électronique @5 47 |
|---|
| C03 | 04 | 3 | ENG | @0 Electron spectroscopy @5 47 |
|---|
| C03 | 05 | 3 | FRE | @0 Collision électron molécule @5 48 |
|---|
| C03 | 05 | 3 | ENG | @0 Electron-molecule collisions @5 48 |
|---|
| C03 | 06 | 3 | FRE | @0 Collision électron atome @5 49 |
|---|
| C03 | 06 | 3 | ENG | @0 Electron-atom collisions @5 49 |
|---|
| C03 | 07 | 3 | FRE | @0 Spectrométrie coïncidence @5 50 |
|---|
| C03 | 07 | 3 | ENG | @0 Coincidence spectrometry @5 50 |
|---|
| C03 | 08 | 3 | FRE | @0 Ionisation impact électron @5 51 |
|---|
| C03 | 08 | 3 | ENG | @0 Electron impact ionization @5 51 |
|---|
| C03 | 09 | 3 | FRE | @0 Domaine énergie 01-10 keV @5 52 |
|---|
| C03 | 09 | 3 | ENG | @0 keV range 01-10 @5 52 |
|---|
| C03 | 10 | 3 | FRE | @0 Domaine énergie 100-1000 eV @5 53 |
|---|
| C03 | 10 | 3 | ENG | @0 eV range 100-1000 @5 53 |
|---|
| C03 | 11 | 3 | FRE | @0 Argon @2 NC @5 54 |
|---|
| C03 | 11 | 3 | ENG | @0 Argon @2 NC @5 54 |
|---|
| C03 | 12 | X | FRE | @0 Composé polycyclique @5 55 |
|---|
| C03 | 12 | X | ENG | @0 Polycyclic compound @5 55 |
|---|
| C03 | 12 | X | SPA | @0 Compuesto policíclico @5 55 |
|---|
| C03 | 13 | 3 | FRE | @0 Cubane @4 INC @5 84 |
|---|
| N21 | | | | @1 242 |
|---|
|
|---|
| pR |
| A30 | 01 | 1 | ENG | @1 International Conference on Coincidence Spectroscopy @3 Brest FRA @4 1998-09-23 |
|---|
|
|---|
Format Inist (serveur)
| NO : | PASCAL 99-0380772 INIST |
|---|
| ET : | Electron momentum spectroscopy studies on atom and molecules using monochromated electrons |
|---|
| AU : | BRUNGER (M. J.); ADCOCK (W.); WINKLER (D. A.); MICHALEWICZ (M. T.); LANGLOIS (J.); NGUYEN VIEN (G.); POCHAT (A.); RIOUAL (S.); ROBAUX (O.); ROUVELLOU (B.); TWEED (R. J.) |
|---|
| AF : | Department of Physics and Chemistry, The Flinders University of South Australia, G.P.O. Box 2100/Adelaide, South Australia 5001/Australie (1 aut., 2 aut.); CSIRO, Division of Molecular Science, Private Bag 10, Clayton South MDC/Clayton, Victoria 3169/Australie (3 aut.); BoM/CSIRO, High Performance Computing and Communication Centre, 24th Floor, 150 Lonsdale Street/Melbourne, Victoria 3000/Australie (4 aut.); Université de Brest, LCEA, 6 avenue V. Le Gorgeu, BP. 809/29285 Brest/France (1 aut., 2 aut., 3 aut., 4 aut., 5 aut., 6 aut., 7 aut.) |
|---|
| DT : | Publication en série; Congrès; Niveau analytique |
|---|
| SO : | Journal de physique. IV; ISSN 1155-4339; France; Da. 1999; Vol. 9; No. 6; Pr6.115-Pr6.118; Bibl. 11 ref. |
|---|
| LA : | Anglais |
|---|
| EA : | A recently developed electron monochromator has been used in noncoplanar symmetric electron momentum spectroscopy studies on atomic argon and molecular cubane. This (e,2e) monochromator typically produces beam currents of 30μA, at better than 98% focus to the inner Faraday cup, into the interaction region. Contemporary work has concentrated on incident electron beam energies in the range 500-1800 eV. At these energies the overall coincident energy resolution is usually in the range 0.50-0:62 eV (FWHM). Binding energy spectra, at different values of recoil momenta, for both argon and cubane, highlight the performance of the spectrometer and will be presented. In addition, selected momentum distributions (MDs) for the respective valence orbitals in both argon and cubane will also be given. These MDs are compared against theory calculations made within either a distorted wave impulse approximation (argon) or plane wave impulse approximation (cubane) reaction mechanism framework. For the argon calculations Hartree-Fock orbitals were employed, while for cubane an extensive range of density functional theory basis sets were used. Some of the ramifications of the present results will be discussed. |
|---|
| CC : | 001B30D80G; 001B30I30 |
|---|
| FD : | 3480G; 3930; Etude expérimentale; Spectrométrie électronique; Collision électron molécule; Collision électron atome; Spectrométrie coïncidence; Ionisation impact électron; Domaine énergie 01-10 keV; Domaine énergie 100-1000 eV; Argon; Composé polycyclique; Cubane |
|---|
| ED : | Experimental study; Electron spectroscopy; Electron-molecule collisions; Electron-atom collisions; Coincidence spectrometry; Electron impact ionization; keV range 01-10; eV range 100-1000; Argon; Polycyclic compound |
|---|
| SD : | Compuesto policíclico |
|---|
| LO : | INIST-125C.354000085599250260 |
|---|
| ID : | 99-0380772 |
|---|
Links to Exploration step
Pascal:99-0380772
Le document en format XML
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<author><name sortKey="Brunger, M J" sort="Brunger, M J" uniqKey="Brunger M" first="M. J." last="Brunger">M. J. Brunger</name>
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</publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Electron momentum spectroscopy studies on atom and molecules using monochromated electrons</title>
<author><name sortKey="Brunger, M J" sort="Brunger, M J" uniqKey="Brunger M" first="M. J." last="Brunger">M. J. Brunger</name>
<affiliation><inist:fA14 i1="01"><s1>Department of Physics and Chemistry, The Flinders University of South Australia, G.P.O. Box 2100</s1>
<s2>Adelaide, South Australia 5001</s2>
<s3>AUS</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
</inist:fA14><author><name sortKey="Adcock, W" sort="Adcock, W" uniqKey="Adcock W" first="W." last="Adcock">W. Adcock</name>
<affiliation><inist:fA14 i1="01"><s1>Department of Physics and Chemistry, The Flinders University of South Australia, G.P.O. Box 2100</s1>
<s2>Adelaide, South Australia 5001</s2>
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<sZ>2 aut.</sZ>
</inist:fA14><author><name sortKey="Winkler, D A" sort="Winkler, D A" uniqKey="Winkler D" first="D. A." last="Winkler">D. A. Winkler</name>
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<s2>Clayton, Victoria 3169</s2>
<s3>AUS</s3>
<sZ>3 aut.</sZ>
</inist:fA14><author><name sortKey="Michalewicz, M T" sort="Michalewicz, M T" uniqKey="Michalewicz M" first="M. T." last="Michalewicz">M. T. Michalewicz</name>
<affiliation><inist:fA14 i1="03"><s1>BoM/CSIRO, High Performance Computing and Communication Centre, 24<sup>th</sup>
Floor, 150 Lonsdale Street</s1><s2>Melbourne, Victoria 3000</s2>
<s3>AUS</s3>
<sZ>4 aut.</sZ>
</inist:fA14><series><title level="j" type="main">Journal de physique. IV</title>
<title level="j" type="abbreviated">J. phys., IV</title>
<idno type="ISSN">1155-4339</idno>
<imprint><date when="1999">1999</date>
</imprint><seriesStmt><title level="j" type="main">Journal de physique. IV</title>
<title level="j" type="abbreviated">J. phys., IV</title>
<idno type="ISSN">1155-4339</idno>
</seriesStmt><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Argon</term>
<term>Coincidence spectrometry</term>
<term>Electron impact ionization</term>
<term>Electron spectroscopy</term>
<term>Electron-atom collisions</term>
<term>Electron-molecule collisions</term>
<term>Experimental study</term>
<term>Polycyclic compound</term>
<term>eV range 100-1000</term>
<term>keV range 01-10</term>
</keywords><keywords scheme="Pascal" xml:lang="fr"><term>3480G</term>
<term>3930</term>
<term>Etude expérimentale</term>
<term>Spectrométrie électronique</term>
<term>Collision électron molécule</term>
<term>Collision électron atome</term>
<term>Spectrométrie coïncidence</term>
<term>Ionisation impact électron</term>
<term>Domaine énergie 01-10 keV</term>
<term>Domaine énergie 100-1000 eV</term>
<term>Argon</term>
<term>Composé polycyclique</term>
<term>Cubane</term>
</keywords><front><div type="abstract" xml:lang="en">A recently developed electron monochromator has been used in noncoplanar symmetric electron momentum spectroscopy studies on atomic argon and molecular cubane. This (e,2e) monochromator typically produces beam currents of 30μA, at better than 98% focus to the inner Faraday cup, into the interaction region. Contemporary work has concentrated on incident electron beam energies in the range 500-1800 eV. At these energies the overall coincident energy resolution is usually in the range 0.50-0:62 eV (FWHM). Binding energy spectra, at different values of recoil momenta, for both argon and cubane, highlight the performance of the spectrometer and will be presented. In addition, selected momentum distributions (MDs) for the respective valence orbitals in both argon and cubane will also be given. These MDs are compared against theory calculations made within either a distorted wave impulse approximation (argon) or plane wave impulse approximation (cubane) reaction mechanism framework. For the argon calculations Hartree-Fock orbitals were employed, while for cubane an extensive range of density functional theory basis sets were used. Some of the ramifications of the present results will be discussed.</div>
</front><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>1155-4339</s0>
</fA01><fA03 i2="1"><s0>J. phys., IV</s0>
</fA03><fA08 i1="01" i2="1" l="ENG"><s1>Electron momentum spectroscopy studies on atom and molecules using monochromated electrons</s1>
</fA08><fA09 i1="01" i2="1" l="ENG"><s1>International Conference on Coincidence Spectroscopy</s1>
</fA09><fA11 i1="01" i2="1"><s1>BRUNGER (M. J.)</s1>
</fA11><fA11 i1="02" i2="1"><s1>ADCOCK (W.)</s1>
</fA11><fA11 i1="03" i2="1"><s1>WINKLER (D. A.)</s1>
</fA11><fA11 i1="04" i2="1"><s1>MICHALEWICZ (M. T.)</s1>
</fA11><fA12 i1="01" i2="1"><s1>LANGLOIS (J.)</s1>
<s9>ed.</s9>
</fA12><fA12 i1="02" i2="1"><s1>NGUYEN VIEN (G.)</s1>
<s9>ed.</s9>
</fA12><fA12 i1="03" i2="1"><s1>POCHAT (A.)</s1>
<s9>ed.</s9>
</fA12><fA12 i1="04" i2="1"><s1>RIOUAL (S.)</s1>
<s9>ed.</s9>
</fA12><fA12 i1="05" i2="1"><s1>ROBAUX (O.)</s1>
<s9>ed.</s9>
</fA12><fA12 i1="06" i2="1"><s1>ROUVELLOU (B.)</s1>
<s9>ed.</s9>
</fA12><fA12 i1="07" i2="1"><s1>TWEED (R. J.)</s1>
<s9>ed.</s9>
</fA12><fA14 i1="01"><s1>Department of Physics and Chemistry, The Flinders University of South Australia, G.P.O. Box 2100</s1>
<s2>Adelaide, South Australia 5001</s2>
<s3>AUS</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
</fA14><fA14 i1="02"><s1>CSIRO, Division of Molecular Science, Private Bag 10, Clayton South MDC</s1>
<s2>Clayton, Victoria 3169</s2>
<s3>AUS</s3>
<sZ>3 aut.</sZ>
</fA14><fA14 i1="03"><s1>BoM/CSIRO, High Performance Computing and Communication Centre, 24<sup>th</sup>
Floor, 150 Lonsdale Street</s1><s2>Melbourne, Victoria 3000</s2>
<s3>AUS</s3>
<sZ>4 aut.</sZ>
</fA14><fA15 i1="01"><s1>Université de Brest, LCEA, 6 avenue V. Le Gorgeu, BP. 809</s1>
<s2>29285 Brest</s2>
<s3>FRA</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
<sZ>5 aut.</sZ>
<sZ>6 aut.</sZ>
<sZ>7 aut.</sZ>
</fA15><fA20><s2>Pr6.115-Pr6.118</s2>
</fA20><fA21><s1>1999</s1>
</fA21><fA23 i1="01"><s0>ENG</s0>
</fA23><fA43 i1="01"><s1>INIST</s1>
<s2>125C</s2>
<s5>354000085599250260</s5>
</fA43><fA44><s0>0000</s0>
<s1>© 1999 INIST-CNRS. All rights reserved.</s1>
</fA44><fA45><s0>11 ref.</s0>
</fA45><fA47 i1="01" i2="1"><s0>99-0380772</s0>
</fA47><fA60><s1>P</s1>
<s2>C</s2>
</fA60><fA64 i1="01" i2="1"><s0>Journal de physique. IV</s0>
</fA64><fA66 i1="01"><s0>FRA</s0>
</fA66><fC01 i1="01" l="ENG"><s0>A recently developed electron monochromator has been used in noncoplanar symmetric electron momentum spectroscopy studies on atomic argon and molecular cubane. This (e,2e) monochromator typically produces beam currents of 30μA, at better than 98% focus to the inner Faraday cup, into the interaction region. Contemporary work has concentrated on incident electron beam energies in the range 500-1800 eV. At these energies the overall coincident energy resolution is usually in the range 0.50-0:62 eV (FWHM). Binding energy spectra, at different values of recoil momenta, for both argon and cubane, highlight the performance of the spectrometer and will be presented. In addition, selected momentum distributions (MDs) for the respective valence orbitals in both argon and cubane will also be given. These MDs are compared against theory calculations made within either a distorted wave impulse approximation (argon) or plane wave impulse approximation (cubane) reaction mechanism framework. For the argon calculations Hartree-Fock orbitals were employed, while for cubane an extensive range of density functional theory basis sets were used. Some of the ramifications of the present results will be discussed.</s0>
</fC01><fC02 i1="01" i2="3"><s0>001B30D80G</s0>
</fC02><fC02 i1="02" i2="3"><s0>001B30I30</s0>
</fC02><fC03 i1="01" i2="3" l="FRE"><s0>3480G</s0>
<s2>PAC</s2>
<s4>INC</s4>
<s5>02</s5>
</fC03><fC03 i1="02" i2="3" l="FRE"><s0>3930</s0>
<s2>PAC</s2>
<s4>INC</s4>
<s5>03</s5>
</fC03><fC03 i1="03" i2="3" l="FRE"><s0>Etude expérimentale</s0>
<s5>46</s5>
</fC03><fC03 i1="03" i2="3" l="ENG"><s0>Experimental study</s0>
<s5>46</s5>
</fC03><fC03 i1="04" i2="3" l="FRE"><s0>Spectrométrie électronique</s0>
<s5>47</s5>
</fC03><fC03 i1="04" i2="3" l="ENG"><s0>Electron spectroscopy</s0>
<s5>47</s5>
</fC03><fC03 i1="05" i2="3" l="FRE"><s0>Collision électron molécule</s0>
<s5>48</s5>
</fC03><fC03 i1="05" i2="3" l="ENG"><s0>Electron-molecule collisions</s0>
<s5>48</s5>
</fC03><fC03 i1="06" i2="3" l="FRE"><s0>Collision électron atome</s0>
<s5>49</s5>
</fC03><fC03 i1="06" i2="3" l="ENG"><s0>Electron-atom collisions</s0>
<s5>49</s5>
</fC03><fC03 i1="07" i2="3" l="FRE"><s0>Spectrométrie coïncidence</s0>
<s5>50</s5>
</fC03><fC03 i1="07" i2="3" l="ENG"><s0>Coincidence spectrometry</s0>
<s5>50</s5>
</fC03><fC03 i1="08" i2="3" l="FRE"><s0>Ionisation impact électron</s0>
<s5>51</s5>
</fC03><fC03 i1="08" i2="3" l="ENG"><s0>Electron impact ionization</s0>
<s5>51</s5>
</fC03><fC03 i1="09" i2="3" l="FRE"><s0>Domaine énergie 01-10 keV</s0>
<s5>52</s5>
</fC03><fC03 i1="09" i2="3" l="ENG"><s0>keV range 01-10</s0>
<s5>52</s5>
</fC03><fC03 i1="10" i2="3" l="FRE"><s0>Domaine énergie 100-1000 eV</s0>
<s5>53</s5>
</fC03><fC03 i1="10" i2="3" l="ENG"><s0>eV range 100-1000</s0>
<s5>53</s5>
</fC03><fC03 i1="11" i2="3" l="FRE"><s0>Argon</s0>
<s2>NC</s2>
<s5>54</s5>
</fC03><fC03 i1="11" i2="3" l="ENG"><s0>Argon</s0>
<s2>NC</s2>
<s5>54</s5>
</fC03><fC03 i1="12" i2="X" l="FRE"><s0>Composé polycyclique</s0>
<s5>55</s5>
</fC03><fC03 i1="12" i2="X" l="ENG"><s0>Polycyclic compound</s0>
<s5>55</s5>
</fC03><fC03 i1="12" i2="X" l="SPA"><s0>Compuesto policíclico</s0>
<s5>55</s5>
</fC03><fC03 i1="13" i2="3" l="FRE"><s0>Cubane</s0>
<s4>INC</s4>
<s5>84</s5>
</fC03><fN21><s1>242</s1>
</fN21><pR><fA30 i1="01" i2="1" l="ENG"><s1>International Conference on Coincidence Spectroscopy</s1>
<s3>Brest FRA</s3>
<s4>1998-09-23</s4>
</fA30><server><NO>PASCAL 99-0380772 INIST</NO>
<ET>Electron momentum spectroscopy studies on atom and molecules using monochromated electrons</ET>
<AU>BRUNGER (M. J.); ADCOCK (W.); WINKLER (D. A.); MICHALEWICZ (M. T.); LANGLOIS (J.); NGUYEN VIEN (G.); POCHAT (A.); RIOUAL (S.); ROBAUX (O.); ROUVELLOU (B.); TWEED (R. J.)</AU>
<AF>Department of Physics and Chemistry, The Flinders University of South Australia, G.P.O. Box 2100/Adelaide, South Australia 5001/Australie (1 aut., 2 aut.); CSIRO, Division of Molecular Science, Private Bag 10, Clayton South MDC/Clayton, Victoria 3169/Australie (3 aut.); BoM/CSIRO, High Performance Computing and Communication Centre, 24<sup>th</sup>
Floor, 150 Lonsdale Street/Melbourne, Victoria 3000/Australie (4 aut.); Université de Brest, LCEA, 6 avenue V. Le Gorgeu, BP. 809/29285 Brest/France (1 aut., 2 aut., 3 aut., 4 aut., 5 aut., 6 aut., 7 aut.)</AF><DT>Publication en série; Congrès; Niveau analytique</DT>
<SO>Journal de physique. IV; ISSN 1155-4339; France; Da. 1999; Vol. 9; No. 6; Pr6.115-Pr6.118; Bibl. 11 ref.</SO>
<LA>Anglais</LA>
<EA>A recently developed electron monochromator has been used in noncoplanar symmetric electron momentum spectroscopy studies on atomic argon and molecular cubane. This (e,2e) monochromator typically produces beam currents of 30μA, at better than 98% focus to the inner Faraday cup, into the interaction region. Contemporary work has concentrated on incident electron beam energies in the range 500-1800 eV. At these energies the overall coincident energy resolution is usually in the range 0.50-0:62 eV (FWHM). Binding energy spectra, at different values of recoil momenta, for both argon and cubane, highlight the performance of the spectrometer and will be presented. In addition, selected momentum distributions (MDs) for the respective valence orbitals in both argon and cubane will also be given. These MDs are compared against theory calculations made within either a distorted wave impulse approximation (argon) or plane wave impulse approximation (cubane) reaction mechanism framework. For the argon calculations Hartree-Fock orbitals were employed, while for cubane an extensive range of density functional theory basis sets were used. Some of the ramifications of the present results will be discussed.</EA>
<CC>001B30D80G; 001B30I30</CC>
<FD>3480G; 3930; Etude expérimentale; Spectrométrie électronique; Collision électron molécule; Collision électron atome; Spectrométrie coïncidence; Ionisation impact électron; Domaine énergie 01-10 keV; Domaine énergie 100-1000 eV; Argon; Composé polycyclique; Cubane</FD>
<ED>Experimental study; Electron spectroscopy; Electron-molecule collisions; Electron-atom collisions; Coincidence spectrometry; Electron impact ionization; keV range 01-10; eV range 100-1000; Argon; Polycyclic compound</ED>
<SD>Compuesto policíclico</SD>
<LO>INIST-125C.354000085599250260</LO>
<ID>99-0380772</ID>
</server>
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