Cross Section of the Electron-Induced 6<i>s</i>-6<i>p</i> Transition in Cesium

Hansen, L. K.

doi:10.1063/1.1713086

Cited by 11 publications

(6 citation statements)

References 4 publications

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“…2 and 3. Briefly, a beam of atoms from an oven intersects an electron beam at right angles and the resonance radiation, in a cone along the third orthogonal axis, is de-, tected.…”

Section: Measurements and Correctionsmentioning

confidence: 99%

“…We replace the theoretical f" in Eq. (2) by the experimental values; thus we are using the Born cross sections of Ref. 12 to obtain only constants C" in Eq.…”

Section: Measurements and Correctionsmentioning

confidence: 99%

“…2 (1) 3.00 (1) 3.50 (1) 4.00(1) e.oo (2) 10.00 (3) 15.00 {4) 20.00 (6) so.oo(s) 40.0 (1) so.o(1) 63.S{2) 99.0 (2) «49.3 (2) 250.9 (2) 4oo.9(s) eo2. 1(s) 902.3 (6) 1202.3 (8) 1500.4 (10) K (42P) 10.75 (40) 15.20 (40) (1) 1.70 (1) i.so ( (1) 3.oo (1) 3.50 (1) 4.oo(1) 6.00 (2) 10.00 (3) 15.00 (4) 20.00 (6) 30.00 (8) (2) 2so.9(2) 400.9 (3) 602~1 (3) 9o2 . (26) -1. ,80 (25) 2.5O (25) 3.2O (24) 3.VS(2O) 4.es (15) -5.51 (15) 6.45 (12) v. oo (14) v. 53(is) (28) -0.17 (24) o.vs (24) O. 90 (26) 1.1S (23) 1.43(is) 1.93 (13) 2.41(i3) -3.O2 (14) -3.25 (15) -.…”

Section: Measurements and Correctionsmentioning

confidence: 99%

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Electron excitation of the resonance lines of the alkali-metal atoms

Chen

Gallagher

1978

Phys. Rev. A

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%'e have measured the relative optical-excitation functions and polarizations of the K, Rb, and Cs resonance lines, using crossed electron and atom beams, for electron energies from threshold to 1500 eV.The electron energy resolution was -0.25 eV for energies below 13 eV, and the atom-beam was optically .thin. The atomic resonance-level (n P) excitation functions have been normalized to the Born theory in the high-energy limit. Comparisons are made with other measurements and calculations. The polarizations and total cross sections for H, Li, Na, K, Rb, and Cs are also compared with each other in reduced units to investigate systematic behavior

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“…2 and 3. Briefly, a beam of atoms from an oven intersects an electron beam at right angles and the resonance radiation, in a cone along the third orthogonal axis, is de-, tected.…”

Section: Measurements and Correctionsmentioning

confidence: 99%

“…We replace the theoretical f" in Eq. (2) by the experimental values; thus we are using the Born cross sections of Ref. 12 to obtain only constants C" in Eq.…”

Section: Measurements and Correctionsmentioning

confidence: 99%

Section: Measurements and Correctionsmentioning

confidence: 99%

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Electron excitation of the resonance lines of the alkali-metal atoms

Chen

Gallagher

1978

Phys. Rev. A

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“…Available in the literature is a multitude of theoretically [35,[46][47][48][49]36,[50][51][52] and experimentally determined [37,[53][54][55]] electron collision excitation cross sections for caesium. CsðiÞþe À -Cs þ þ 2e À [38] Recombination of Cs þ Cs þ þ 2e À -CsðjÞþe À [38], Saha equation…”

Section: Electron Collision Excitation and De-excitationmentioning

confidence: 99%

A collisional radiative model for low-pressure hydrogen–caesium plasmas and its application to an RF source for negative hydrogen ions

Wünderlich

Wimmer

Friedl

2014

Journal of Quantitative Spectroscopy and Radiative Transfer

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a b s t r a c tA collisional radiative (CR) model for caesium in low-temperature, low-pressure hydrogen-caesium plasmas is introduced. This model includes the caesium ground state, 14 excited states, the singly charged caesium ion and the negative hydrogen ion. The reaction probabilities needed as an input are based on literature data, using some scaling and extrapolations. Additionally, new cross sections for electron collision ionization and threebody recombination have been calculated.The relevance of mutual neutralization of positive caesium ions and negative hydrogen ions is highlighted: depending on the densities of the involved particle species, this excitation channel can have a significant influence on the population densities of excited states in the caesium atom. This strong influence is successfully verified by optical emission spectroscopy measurements performed at the IPP prototype source for negative hydrogen ions.As a consequence, population models for caesium in electronegative low-temperature, low-pressure hydrogen-caesium plasmas need to take into account the mutual neutralization process. The present CR model is an example for such models and represents an important prerequisite for deducing the total caesium density in such plasmas.

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“…There have also been a number of theoretical calculations of the integrated cross sections. These were performed by Hansen (1964), 09S3475/94/143175+14$19SO @ 1994 IOP Publishing Ltd 3175 Witting and Gyftopoulos (196.5). Sheldon and Dugan (1965), Vainshtein e t d (1965), Mathur eral (1969) and Felden and Felden (1973).…”

Section: Introductionmentioning

confidence: 99%

Relativistic distorted-wave calculation of electron impact excitation of caesium

Zeman

McEachran

Stauffer

1994

J. Phys. B: At. Mol. Opt. Phys.

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The relativistic distorted-wave method has been used to calculate electron impact excitation of caesium to the (6p) 2P1/2,3/2 states with incident electron energies of 20-100 eV. Differential and integrated cross sections as well as differential Stokes' parameters and generalized STU parameters are presented. Experimental and other theoretical data with which the authors can compare their results exist only for the integrated cross sections.

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Cross Section of the Electron-Induced 6s-6p Transition in Cesium

Abstract: Capture cross sections of electron irradiation induced defects in 6H-SiC

Cited by 11 publications

References 4 publications

Electron excitation of the resonance lines of the alkali-metal atoms

Electron excitation of the resonance lines of the alkali-metal atoms

A collisional radiative model for low-pressure hydrogen–caesium plasmas and its application to an RF source for negative hydrogen ions

Relativistic distorted-wave calculation of electron impact excitation of caesium

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