Matches in SemOpenAlex for { <https://semopenalex.org/work/W2538678048> ?p ?o ?g. }
Showing items 1 to 74 of
74
with 100 items per page.
- W2538678048 endingPage "3649" @default.
- W2538678048 startingPage "3636" @default.
- W2538678048 abstract "Prodigious quantities of microwave energy distributed uniformly across a wide frequency band are observed when a relativistic electron beam (REB) penetrates a plasma. Typical measured values are 20 MW total for Δν≂40 GHz with preliminary observations of bandwidths as large as 100 GHz. An intense annular pulsed REB (I≂128 kA; r≂3 cm; Δr≂1 cm; 50 nsec FWHM; γ≂3) is sent through an unmagnetized or weakly magnetized plasma column (nplasma∼1013 cm−3). Beam-to-plasma densities of 0.01≤nbeam/nplasma≤2 are used, the higher values of this range being an unconsidered region for most previous theoretical and experimental efforts. For these higher nb/np values, the observed emission with ω≫ωp and weak harmonic structure is wholly unanticipated from Langmuir scattering or soliton collapse models. A model of Compton-like boosting of ambient plasma waves by the beam electrons, with collateral emission of high-frequency photons, qualitatively explains these spectra. Power emerges largely in an angle ∼1/γ, as required by Compton mechanisms. As nb/np falls, ωp−2ωp structure and harmonic power ratios consistent with soliton collapse theories appear. With further reduction of nb/np only the ωp line persists. Thus a transition occurs in spectral behavior from the weak to strong turbulence theories advocated for type-III solar burst radiation, and further into a regime we characterize as superstrong REB–plasma interactions, is observed. For frequencies slightly below the broadband region, an ωp line is observed with high power (approximately 1 MW); the line disappears in an external Bz∼400 G. Changing γb over a range of 2.2–3.7 has little effect on the spectra." @default.
- W2538678048 created "2016-10-28" @default.
- W2538678048 creator A5072532082 @default.
- W2538678048 date "1983-12-01" @default.
- W2538678048 modified "2023-09-26" @default.
- W2538678048 title "Detailed spectra of high-power broadband microwave radiation from interactions of relativistic electron beams with weakly magnetized plasmas" @default.
- W2538678048 cites W1970088448 @default.
- W2538678048 cites W1973640295 @default.
- W2538678048 cites W1979050023 @default.
- W2538678048 cites W1984791398 @default.
- W2538678048 cites W1989673393 @default.
- W2538678048 cites W1996440250 @default.
- W2538678048 cites W2016299105 @default.
- W2538678048 cites W2017231932 @default.
- W2538678048 cites W2020216041 @default.
- W2538678048 cites W2029505214 @default.
- W2538678048 cites W2045550225 @default.
- W2538678048 cites W2068075007 @default.
- W2538678048 cites W2076019871 @default.
- W2538678048 cites W2079558180 @default.
- W2538678048 cites W2090380915 @default.
- W2538678048 cites W2091565028 @default.
- W2538678048 cites W2154403755 @default.
- W2538678048 cites W52598801 @default.
- W2538678048 doi "https://doi.org/10.1063/1.864134" @default.
- W2538678048 hasPublicationYear "1983" @default.
- W2538678048 type Work @default.
- W2538678048 sameAs 2538678048 @default.
- W2538678048 citedByCount "51" @default.
- W2538678048 countsByYear W25386780482016 @default.
- W2538678048 countsByYear W25386780482017 @default.
- W2538678048 crossrefType "journal-article" @default.
- W2538678048 hasAuthorship W2538678048A5072532082 @default.
- W2538678048 hasConcept C121332964 @default.
- W2538678048 hasConcept C1276947 @default.
- W2538678048 hasConcept C147120987 @default.
- W2538678048 hasConcept C184779094 @default.
- W2538678048 hasConcept C185544564 @default.
- W2538678048 hasConcept C2776774166 @default.
- W2538678048 hasConcept C4839761 @default.
- W2538678048 hasConcept C61203554 @default.
- W2538678048 hasConcept C82706917 @default.
- W2538678048 hasConcept C95312477 @default.
- W2538678048 hasConceptScore W2538678048C121332964 @default.
- W2538678048 hasConceptScore W2538678048C1276947 @default.
- W2538678048 hasConceptScore W2538678048C147120987 @default.
- W2538678048 hasConceptScore W2538678048C184779094 @default.
- W2538678048 hasConceptScore W2538678048C185544564 @default.
- W2538678048 hasConceptScore W2538678048C2776774166 @default.
- W2538678048 hasConceptScore W2538678048C4839761 @default.
- W2538678048 hasConceptScore W2538678048C61203554 @default.
- W2538678048 hasConceptScore W2538678048C82706917 @default.
- W2538678048 hasConceptScore W2538678048C95312477 @default.
- W2538678048 hasIssue "12" @default.
- W2538678048 hasLocation W25386780481 @default.
- W2538678048 hasOpenAccess W2538678048 @default.
- W2538678048 hasPrimaryLocation W25386780481 @default.
- W2538678048 hasRelatedWork W1963744876 @default.
- W2538678048 hasRelatedWork W1976441422 @default.
- W2538678048 hasRelatedWork W1980042502 @default.
- W2538678048 hasRelatedWork W2016140847 @default.
- W2538678048 hasRelatedWork W2041138495 @default.
- W2538678048 hasRelatedWork W2057096597 @default.
- W2538678048 hasRelatedWork W2334620464 @default.
- W2538678048 hasRelatedWork W2984164980 @default.
- W2538678048 hasRelatedWork W3021029331 @default.
- W2538678048 hasRelatedWork W3104083206 @default.
- W2538678048 hasVolume "26" @default.
- W2538678048 isParatext "false" @default.
- W2538678048 isRetracted "false" @default.
- W2538678048 magId "2538678048" @default.
- W2538678048 workType "article" @default.