Matches in SemOpenAlex for { <https://semopenalex.org/work/W827408970> ?p ?o ?g. }
Showing items 1 to 85 of
85
with 100 items per page.
- W827408970 abstract "The optical excitation function of prompt Lyman-Alpha radiation, produced by electron impact on atomic hydrogen, has been measured over the extended energy range from threshold to 1.8 keV. Measurements were obtained in a crossed-beams experiment using both magnetically confined and electrostatically focused electrons in collision with atomic hydrogen produced by an intense discharge source. A vacuum-ultraviolet mono- chromator system was used to measure the emitted Lyman-Alpha radiation. The absolute H(1s-2p) electron impact excitation cross section was obtained from the experimental optical excitation function by normalizing to the accepted optical oscillator strength, with corrections for polarization and cascade. Statistical and known systematic uncertainties in our data range from +/- 4% near threshold to +/- 2% at 1.8 keV. Multistate coupling affecting the shape of the excitation function up to 1 keV impact energy is apparent in both the present experimental data and present theoretical results obtained with convergent close- coupling (CCC) theory. This shape function effect leads to an uncertainty in absolute cross sections at the 10% level in the analysis of the experimental data. The derived optimized absolute cross sections are within 7% of the CCC calculations over the 14 eV-1.8 keV range. The present CCC calculations converge on the Bethe- Fano profile for H(1s-2p) excitation at high energy. For this reason agreement with the CCC values to within 3% is achieved in a nonoptimal normalization of the experimental data to the Bethe-Fano profile. The fundamental H(1s-2p) electron impact cross section is thereby determined to an unprecedented accuracy over the 14 eV - 1.8 keV energy range." @default.
- W827408970 created "2016-06-24" @default.
- W827408970 creator A5010490932 @default.
- W827408970 creator A5017804157 @default.
- W827408970 creator A5027260837 @default.
- W827408970 creator A5032954034 @default.
- W827408970 creator A5039679867 @default.
- W827408970 creator A5059166460 @default.
- W827408970 creator A5077369868 @default.
- W827408970 creator A5081828766 @default.
- W827408970 date "1997-02-01" @default.
- W827408970 modified "2023-10-02" @default.
- W827408970 title "Atomic, Molecular, and Optical Physics: Optical Excitation Function of H(1s-2p) Produced by electron Impact from Threshold to 1.8 keV" @default.
- W827408970 hasPublicationYear "1997" @default.
- W827408970 type Work @default.
- W827408970 sameAs 827408970 @default.
- W827408970 citedByCount "0" @default.
- W827408970 crossrefType "journal-article" @default.
- W827408970 hasAuthorship W827408970A5010490932 @default.
- W827408970 hasAuthorship W827408970A5017804157 @default.
- W827408970 hasAuthorship W827408970A5027260837 @default.
- W827408970 hasAuthorship W827408970A5032954034 @default.
- W827408970 hasAuthorship W827408970A5039679867 @default.
- W827408970 hasAuthorship W827408970A5059166460 @default.
- W827408970 hasAuthorship W827408970A5077369868 @default.
- W827408970 hasAuthorship W827408970A5081828766 @default.
- W827408970 hasConcept C121332964 @default.
- W827408970 hasConcept C145148216 @default.
- W827408970 hasConcept C147120987 @default.
- W827408970 hasConcept C159985019 @default.
- W827408970 hasConcept C184779094 @default.
- W827408970 hasConcept C185544564 @default.
- W827408970 hasConcept C192562407 @default.
- W827408970 hasConcept C198291218 @default.
- W827408970 hasConcept C204323151 @default.
- W827408970 hasConcept C205759337 @default.
- W827408970 hasConcept C206191943 @default.
- W827408970 hasConcept C2776900694 @default.
- W827408970 hasConcept C61782718 @default.
- W827408970 hasConcept C62520636 @default.
- W827408970 hasConcept C83581075 @default.
- W827408970 hasConceptScore W827408970C121332964 @default.
- W827408970 hasConceptScore W827408970C145148216 @default.
- W827408970 hasConceptScore W827408970C147120987 @default.
- W827408970 hasConceptScore W827408970C159985019 @default.
- W827408970 hasConceptScore W827408970C184779094 @default.
- W827408970 hasConceptScore W827408970C185544564 @default.
- W827408970 hasConceptScore W827408970C192562407 @default.
- W827408970 hasConceptScore W827408970C198291218 @default.
- W827408970 hasConceptScore W827408970C204323151 @default.
- W827408970 hasConceptScore W827408970C205759337 @default.
- W827408970 hasConceptScore W827408970C206191943 @default.
- W827408970 hasConceptScore W827408970C2776900694 @default.
- W827408970 hasConceptScore W827408970C61782718 @default.
- W827408970 hasConceptScore W827408970C62520636 @default.
- W827408970 hasConceptScore W827408970C83581075 @default.
- W827408970 hasIssue "2" @default.
- W827408970 hasLocation W8274089701 @default.
- W827408970 hasOpenAccess W827408970 @default.
- W827408970 hasPrimaryLocation W8274089701 @default.
- W827408970 hasRelatedWork W1489264312 @default.
- W827408970 hasRelatedWork W1655978249 @default.
- W827408970 hasRelatedWork W1979400919 @default.
- W827408970 hasRelatedWork W1988181745 @default.
- W827408970 hasRelatedWork W1990039629 @default.
- W827408970 hasRelatedWork W1992944751 @default.
- W827408970 hasRelatedWork W1993801223 @default.
- W827408970 hasRelatedWork W2003834793 @default.
- W827408970 hasRelatedWork W2016619687 @default.
- W827408970 hasRelatedWork W2030844457 @default.
- W827408970 hasRelatedWork W2031602560 @default.
- W827408970 hasRelatedWork W2032745729 @default.
- W827408970 hasRelatedWork W2085722317 @default.
- W827408970 hasRelatedWork W2086408339 @default.
- W827408970 hasRelatedWork W2090124909 @default.
- W827408970 hasRelatedWork W2152428494 @default.
- W827408970 hasRelatedWork W2301443419 @default.
- W827408970 hasRelatedWork W2328413380 @default.
- W827408970 hasRelatedWork W3199925872 @default.
- W827408970 hasRelatedWork W2012819999 @default.
- W827408970 hasVolume "55" @default.
- W827408970 isParatext "false" @default.
- W827408970 isRetracted "false" @default.
- W827408970 magId "827408970" @default.
- W827408970 workType "article" @default.