Vibrational excitation of H2(X1Σ+g, v)/D2(X1Σ+g, v) through excitation of electronically excited singlet states and radiative cascade

Celiberto, R.; Capitelli, M.; Lamanna, U. T.

doi:10.1016/0301-0104(93)e0437-z

Cited by 25 publications

(23 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…, "=E+ c"', (5) where e. " is the eigenvalue of the v;th vibrational level belonging to the a; electronic state.…”

Section: Methods Of Calculationmentioning

confidence: 99%

“…(3) H2(X 'Xg+, uf )+h v, where the H2 molecule, initially in the vibrational level U;, excited by electron impact in a singlet electronic state decays radiatively in the manifold of vf vibrational levels of the electronic ground state. This process has been extensively studied by Hiskes [2,3], and more recently by our group using excitation cross sections calculated according to the impact-parameter method [4,5].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Dependence of electron-impact dissociative excitation cross sections on the initial vibrational quantum number inH2andD
Celiberto
¹
,
Lamanna
²
,
Capitelli
³

1994
Phys. Rev. A
Self Cite
50
3
23
2
View full text Add to dashboard Cite

Electron-impact dissociative cross sections for H2 and D2 vibrationally excited molecules have been calculated in the frame of the impact-parameter method for dissociative processes involving direct dissociation M2(X'Xg, U;)+e~M2(B 'X"+, C'H")+e~2M+e and radiative cascade M2(X'Xg, v;) +e~Mz (B 'X"+, C'll")+e -+M2(X 'Xg+)+e+hv~2M+e+hv (M2 represents a hydrogen or deuterium molecule). The results show that direct dissociation cross sections strongly depend on the initial vibrational state of the molecule, while an opposite behavior is found in the case of dissociation by radiative cascade. Moreover, for this last process, the fraction of molecules that undergoes dissociation has been evaluated with respect to the total cascade process, yielding in general quite small values in both the H2 and D2 cases.PACS number(s): 34.80.Gs, 52.20.Fs

show abstract

“…, "=E+ c"', (5) where e. " is the eigenvalue of the v;th vibrational level belonging to the a; electronic state.…”

Section: Methods Of Calculationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dependence of electron-impact dissociative excitation cross sections on the initial vibrational quantum number inH2andD
Celiberto
¹
,
Lamanna
²
,
Capitelli
³

1994
Phys. Rev. A
Self Cite
50
3
23
2
View full text Add to dashboard Cite

show abstract

“…Vibrational and dissociative excitation cross sections for this two-step process have been obtained for both H 2 and D 2 molecules [12,13], including in the electron-impact excitation step (leading to H * …”

Section: Excitation-radiative Decay Vibrational Excitation and Dissocmentioning

confidence: 99%

“…[10][11], -excitation-radiative decay processes: Refs. [12][13], -dissociative electron attachment: Refs. [4,14].…”

Section: Introductionmentioning

confidence: 99%

Cross Section Data for Electron-Impact Inelastic Processes of Vibrationally Excited Molecules of Hydrogen and Its Isotopes

Celiberto

Janev

Laricchiuta

et al. 2001

Atomic Data and Nuclear Data Tables

Self Cite

217

181

View full text Add to dashboard Cite

“…4) is caused by difference in cross section of vibrational excitation associated with the process (1a) between hydrogen molecules and deuterium molecules. The cross-section of H 2 is larger than one of D 2 [9]. So, integrated intensities of VUV emission in D 2 plasmas are smaller than the ones in H 2 plasmas.…”

Section: à Production In D 2 Plasmas and Isotope Effect Onmentioning

confidence: 87%

Study of argon additive in a beam injection type negative ion source using VUV emission spectroscopy

Nakada

Fukumasa

2006

Thin Solid Films

View full text Add to dashboard Cite

Effects of Ar addition are studied by using a beam injection type negative ion source. With adding Ar, I H À increases at low base H 2 pressure. At high base H 2 pressure, however, I H À decreases. VUV emission intensities also decrease at high base pressure. In other words, Ar addition is adverse effect for production of H 2 (vW). Therefore, decrease in I H À is caused by decrease in H 2 (vW). In D 2 plasmas, variation patterns of plasma parameters and VUV intensities by Ar addition are nearly the same as ones in H 2 plasmas. Even in low base pressure, however, enhancement of I D À is not observed. D 2005 Published by Elsevier B.V.

show abstract

Vibrational excitation of H2(X1Σ+g, v)/D2(X1Σ+g, v) through excitation of electronically excited singlet states and radiative cascade

Cited by 25 publications

References 10 publications

Dependence of electron-impact dissociative excitation cross sections on the initial vibrational quantum number inH2andD
Celiberto
¹
,
Lamanna
²
,
Capitelli
³

1994
Phys. Rev. A
Self Cite
50
3
23
2
View full text Add to dashboard Cite

Dependence of electron-impact dissociative excitation cross sections on the initial vibrational quantum number inH2andD
Celiberto
¹
,
Lamanna
²
,
Capitelli
³

1994
Phys. Rev. A
Self Cite
50
3
23
2
View full text Add to dashboard Cite

Cross Section Data for Electron-Impact Inelastic Processes of Vibrationally Excited Molecules of Hydrogen and Its Isotopes

Study of argon additive in a beam injection type negative ion source using VUV emission spectroscopy

Contact Info

Product

Resources

About

Vibrational excitation of H2(X1Σ+g, v)/D2(X1Σ+g, v) through excitation of electronically excited singlet states and radiative cascade

Cited by 25 publications

References 10 publications

Dependence of electron-impact dissociative excitation cross sections on the initial vibrational quantum number inH2andDCeliberto1, Lamanna2, Capitelli3 1994Phys. Rev. ASelf Cite503232View full textAdd to dashboardCite

Dependence of electron-impact dissociative excitation cross sections on the initial vibrational quantum number inH2andDCeliberto1, Lamanna2, Capitelli3 1994Phys. Rev. ASelf Cite503232View full textAdd to dashboardCite

Cross Section Data for Electron-Impact Inelastic Processes of Vibrationally Excited Molecules of Hydrogen and Its Isotopes

Study of argon additive in a beam injection type negative ion source using VUV emission spectroscopy

Contact Info

Product

Resources

About

Dependence of electron-impact dissociative excitation cross sections on the initial vibrational quantum number inH2andD
Celiberto
¹
,
Lamanna
²
,
Capitelli
³

1994
Phys. Rev. A
Self Cite
50
3
23
2
View full text Add to dashboard Cite

Dependence of electron-impact dissociative excitation cross sections on the initial vibrational quantum number inH2andD
Celiberto
¹
,
Lamanna
²
,
Capitelli
³

1994
Phys. Rev. A
Self Cite
50
3
23
2
View full text Add to dashboard Cite