Experimental and theoretical comparison between absorption, total electron yield and fluorescence spectra of the thulium M5 edge
Identifieur interne : 001360 ( Pascal/Corpus ); précédent : 001359; suivant : 001361Experimental and theoretical comparison between absorption, total electron yield and fluorescence spectra of the thulium M5 edge
Auteurs : M. Pompa ; A. M. Flank ; P. Lagarde ; J. Rife ; I. Stekhin ; M. Nakazawa ; H. Ogasawara ; A. KotaniSource :
- Journal de physique. IV [ 1155-4339 ] ; 1997.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
Abstract
Beside the now well known self-absorption effect, several phenomena related to the multiplet structure of the intermediate state the occur which will render the X-ray fluorescence different from the true absorption result on 3d transition metals at the L edge and on the M4,5 edges of rare earths. Special selection rules of the radiative de-excitation process may play an important role there. We have measured the absorption coefficient of a thin film of thulium deposited onto an aluminum foil, at room temperature, through the simultaneous detection of the transmission, 160 eV bandwidth fluorescence yield and total electron yield. While transmission and electron yield results are very similar, as expected for a very thin sample, the fluorescence yield spectrum is definitely different. Theoretically, the resonant X-ray fluorescence spectrum was calculated using an atomic model, and then integrated over the emitted energy, to predict the fluorescence yield spectrum. A very good agreement is obtained between the theory and experiment.
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Pour connaître la documentation sur le format Inist Standard.
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Format Inist (serveur)
NO : | PASCAL 97-0426195 INIST |
---|---|
ET : | Experimental and theoretical comparison between absorption, total electron yield and fluorescence spectra of the thulium M5 edge |
AU : | POMPA (M.); FLANK (A. M.); LAGARDE (P.); RIFE (J.); STEKHIN (I.); NAKAZAWA (M.); OGASAWARA (H.); KOTANI (A.); GOULON (J.); GOULON-GINET (C.); BROOKES (N. B.) |
AF : | LURE, bâtiment 209d, Centre Universitaire/91405 Orsay/France (1 aut., 2 aut., 3 aut.); Naval Research Lab., code 6686, 4555 Overlook Ave. SW/Washington DC 20375/Etats-Unis (4 aut.); Physical Department, Rostov State University/Rostov-on-Don 344104/Russie (5 aut., 7 aut.); Institute for Solid State Physics, University of Tokyo, Roppongi/Minato-ku, Tokyo 106/Japon (6 aut., 8 aut.); European Synchrotron Radiation Facility (ESRF), BP 220/38043 Grenoble/France (1 aut., 2 aut., 3 aut.) |
DT : | Publication en série; Congrès; Niveau analytique |
SO : | Journal de physique. IV; ISSN 1155-4339; France; Da. 1997; Vol. 7; No. 2 PART1; C2.159-C2.160; Bibl. 4 ref. |
LA : | Anglais |
EA : | Beside the now well known self-absorption effect, several phenomena related to the multiplet structure of the intermediate state the occur which will render the X-ray fluorescence different from the true absorption result on 3d transition metals at the L edge and on the M4,5 edges of rare earths. Special selection rules of the radiative de-excitation process may play an important role there. We have measured the absorption coefficient of a thin film of thulium deposited onto an aluminum foil, at room temperature, through the simultaneous detection of the transmission, 160 eV bandwidth fluorescence yield and total electron yield. While transmission and electron yield results are very similar, as expected for a very thin sample, the fluorescence yield spectrum is definitely different. Theoretically, the resonant X-ray fluorescence spectrum was calculated using an atomic model, and then integrated over the emitted energy, to predict the fluorescence yield spectrum. A very good agreement is obtained between the theory and experiment. |
CC : | 001B70H70D; 001B70H70E; 240 |
FD : | Etude expérimentale; Etude théorique; Spectre absorption; Fluorescence; Spectre RX; Couche mince; Rendement fluorescence; Thulium; 7870D; 7870E; Tm |
FG : | Lanthanide |
ED : | Experimental study; Theoretical study; Absorption spectra; Fluorescence; X-ray spectra; Thin films; Fluorescence yield; Thulium |
EG : | Rare earths |
LO : | INIST-125C.354000067431660290 |
ID : | 97-0426195 |
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Pascal:97-0426195Le document en format XML
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<front><div type="abstract" xml:lang="en">Beside the now well known self-absorption effect, several phenomena related to the multiplet structure of the intermediate state the occur which will render the X-ray fluorescence different from the true absorption result on 3d transition metals at the L edge and on the M4,5 edges of rare earths. Special selection rules of the radiative de-excitation process may play an important role there. We have measured the absorption coefficient of a thin film of thulium deposited onto an aluminum foil, at room temperature, through the simultaneous detection of the transmission, 160 eV bandwidth fluorescence yield and total electron yield. While transmission and electron yield results are very similar, as expected for a very thin sample, the fluorescence yield spectrum is definitely different. Theoretically, the resonant X-ray fluorescence spectrum was calculated using an atomic model, and then integrated over the emitted energy, to predict the fluorescence yield spectrum. A very good agreement is obtained between the theory and experiment.</div>
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<fC01 i1="01" l="ENG"><s0>Beside the now well known self-absorption effect, several phenomena related to the multiplet structure of the intermediate state the occur which will render the X-ray fluorescence different from the true absorption result on 3d transition metals at the L edge and on the M4,5 edges of rare earths. Special selection rules of the radiative de-excitation process may play an important role there. We have measured the absorption coefficient of a thin film of thulium deposited onto an aluminum foil, at room temperature, through the simultaneous detection of the transmission, 160 eV bandwidth fluorescence yield and total electron yield. While transmission and electron yield results are very similar, as expected for a very thin sample, the fluorescence yield spectrum is definitely different. Theoretically, the resonant X-ray fluorescence spectrum was calculated using an atomic model, and then integrated over the emitted energy, to predict the fluorescence yield spectrum. A very good agreement is obtained between the theory and experiment.</s0>
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<s5>01</s5>
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<s5>02</s5>
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<s5>03</s5>
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<s5>03</s5>
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<s5>04</s5>
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<fC03 i1="06" i2="3" l="FRE"><s0>Couche mince</s0>
<s5>06</s5>
</fC03>
<fC03 i1="06" i2="3" l="ENG"><s0>Thin films</s0>
<s5>06</s5>
</fC03>
<fC03 i1="07" i2="3" l="FRE"><s0>Rendement fluorescence</s0>
<s5>07</s5>
</fC03>
<fC03 i1="07" i2="3" l="ENG"><s0>Fluorescence yield</s0>
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<fC03 i1="09" i2="3" l="FRE"><s0>7870D</s0>
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<s4>INC</s4>
<s5>56</s5>
</fC03>
<fC03 i1="10" i2="3" l="FRE"><s0>7870E</s0>
<s2>PAC</s2>
<s4>INC</s4>
<s5>57</s5>
</fC03>
<fC03 i1="11" i2="3" l="FRE"><s0>Tm</s0>
<s4>INC</s4>
<s5>92</s5>
</fC03>
<fC07 i1="01" i2="3" l="FRE"><s0>Lanthanide</s0>
<s2>NC</s2>
<s5>16</s5>
</fC07>
<fC07 i1="01" i2="3" l="ENG"><s0>Rare earths</s0>
<s2>NC</s2>
<s5>16</s5>
</fC07>
<fN21><s1>258</s1>
</fN21>
</pA>
<pR><fA30 i1="01" i2="1" l="ENG"><s1>International Conference on X-Ray Absorption Fine Structure (XAFS IX)</s1>
<s2>9</s2>
<s3>Grenoble FRA</s3>
<s4>1996-08-26</s4>
</fA30>
</pR>
</standard>
<server><NO>PASCAL 97-0426195 INIST</NO>
<ET>Experimental and theoretical comparison between absorption, total electron yield and fluorescence spectra of the thulium M5 edge</ET>
<AU>POMPA (M.); FLANK (A. M.); LAGARDE (P.); RIFE (J.); STEKHIN (I.); NAKAZAWA (M.); OGASAWARA (H.); KOTANI (A.); GOULON (J.); GOULON-GINET (C.); BROOKES (N. B.)</AU>
<AF>LURE, bâtiment 209d, Centre Universitaire/91405 Orsay/France (1 aut., 2 aut., 3 aut.); Naval Research Lab., code 6686, 4555 Overlook Ave. SW/Washington DC 20375/Etats-Unis (4 aut.); Physical Department, Rostov State University/Rostov-on-Don 344104/Russie (5 aut., 7 aut.); Institute for Solid State Physics, University of Tokyo, Roppongi/Minato-ku, Tokyo 106/Japon (6 aut., 8 aut.); European Synchrotron Radiation Facility (ESRF), BP 220/38043 Grenoble/France (1 aut., 2 aut., 3 aut.)</AF>
<DT>Publication en série; Congrès; Niveau analytique</DT>
<SO>Journal de physique. IV; ISSN 1155-4339; France; Da. 1997; Vol. 7; No. 2 PART1; C2.159-C2.160; Bibl. 4 ref.</SO>
<LA>Anglais</LA>
<EA>Beside the now well known self-absorption effect, several phenomena related to the multiplet structure of the intermediate state the occur which will render the X-ray fluorescence different from the true absorption result on 3d transition metals at the L edge and on the M4,5 edges of rare earths. Special selection rules of the radiative de-excitation process may play an important role there. We have measured the absorption coefficient of a thin film of thulium deposited onto an aluminum foil, at room temperature, through the simultaneous detection of the transmission, 160 eV bandwidth fluorescence yield and total electron yield. While transmission and electron yield results are very similar, as expected for a very thin sample, the fluorescence yield spectrum is definitely different. Theoretically, the resonant X-ray fluorescence spectrum was calculated using an atomic model, and then integrated over the emitted energy, to predict the fluorescence yield spectrum. A very good agreement is obtained between the theory and experiment.</EA>
<CC>001B70H70D; 001B70H70E; 240</CC>
<FD>Etude expérimentale; Etude théorique; Spectre absorption; Fluorescence; Spectre RX; Couche mince; Rendement fluorescence; Thulium; 7870D; 7870E; Tm</FD>
<FG>Lanthanide</FG>
<ED>Experimental study; Theoretical study; Absorption spectra; Fluorescence; X-ray spectra; Thin films; Fluorescence yield; Thulium</ED>
<EG>Rare earths</EG>
<LO>INIST-125C.354000067431660290</LO>
<ID>97-0426195</ID>
</server>
</inist>
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