Zobrazeno 1 - 10
of 43
pro vyhledávání: '"K F Dunn"'
Publikováno v:
Molecular Physics
Molecular Physics, Taylor & Francis, 2010, 108 (07-09), pp.895-904. ⟨10.1080/00268970903535483⟩
Molecular Physics, Taylor & Francis, 2010, 108 (07-09), pp.895-904. ⟨10.1080/00268970903535483⟩
Using synchrotron radiation in the range 12-35 eV, negative ions are detected by mass spectrometry following vacuum-UV photoexcitation of methane. Ion yields for H\(^-\), CH\(^-\) and CH\(_2^-\) are recorded, the spectra of CH\(^-\) and CH\(_2^-\) fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e0072173029b00a5c7b27d326183e493
https://doi.org/10.1080/00268970903535483
https://doi.org/10.1080/00268970903535483
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 40:1225-1232
Photoion-pair formation in H 2 O and D 2 O has been studied using synchrotron radiation within the energy range 15-50 eV. Appearance potentials for the formation of O - , OH - and H - have been determined and coincide with their thermochemical thresh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e318a4144b6b54655c4a80dca158f72
https://doi.org/10.1088/0953-4075/40/6/012
https://doi.org/10.1088/0953-4075/40/6/012
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 37:547-556
Polar photodissociation of a set of bromo-chloro-alkanes in the vicinity of the Br 3d core edge has been observed for the first time. It is shown that negative photoion spectroscopy is a powerful tool for investigating the various decay mechanisms of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::94698bde6c0c275b2177c2227b95a732
https://doi.org/10.1088/0953-4075/37/3/002
https://doi.org/10.1088/0953-4075/37/3/002
Publikováno v:
International Journal of Mass Spectrometry. :67-79
The molecular and dissociative photoionization of C 2 H 2 and C 2 H 4 has been studied using synchrotron radiation within the energy range 11–30 eV. Positive and negative photoion mass spectra have been obtained. Appearance thresholds for the forma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e839a582a163e7358634f309f757c2e2
https://doi.org/10.1016/s1387-3806(02)00781-9
https://doi.org/10.1016/s1387-3806(02)00781-9
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 35:2703-2711
Negative fragment ion formation from SF6 has been studied using synchrotron radiation within the energy range 20-205 eV. The fragment ions F-, F2-, S- and SF- have been observed. It is shown that shape resonance and unoccupied valence orbitals play a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bdfaf3b8a251ac67a1d387a4448cb677
https://doi.org/10.1088/0953-4075/35/12/306
https://doi.org/10.1088/0953-4075/35/12/306
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 35:1061-1069
The molecular and dissociative photoionization of C2H6 has been studied using synchrotron radiation within the energy range 11-40 eV. Positive and negative photoion mass spectra and threshold photoelectron spectra have been obtained. These show that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::115a73794eda7d3e4dce33a3ee12418d
https://doi.org/10.1088/0953-4075/35/4/328
https://doi.org/10.1088/0953-4075/35/4/328
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 32:2667-2676
The dissociative photoionization of CH4 and CD4 has been studied using synchrotron radiation within the energy range of 12-60 eV. The mass spectra of secondary CHn+/CDn+ ions have been found to display significant isotope effects and to depend on the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4cca6b6324106711811ffb8403fb627a
https://doi.org/10.1088/0953-4075/32/11/314
https://doi.org/10.1088/0953-4075/32/11/314
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 31:4173-4180
The appearance energies and kinetic energy spectra of energetic fragment protons and deuterons produced in the dissociative photoionization of and have been measured using synchrotron radiation within the energy range 20-45 eV. Measurements were made
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::00f42b43b60946ff18c528f4c2b06013
https://doi.org/10.1088/0953-4075/31/18/015
https://doi.org/10.1088/0953-4075/31/18/015
Autor:
X Lu, Brian E. O'Rourke, H. Tawara, A.F. Morton, M Matranga, Vesselin Krastev, T Kavanagh, K F Dunn, Frederick Currell, Hirofumi Watanabe, John Aiken
Publikováno v:
Physica Scripta. :53-55
An electron beam ion trap (EBIT) has been designed and is currently under construction for use in atomic physics experiments at the Queen's University, Belfast. In contrast to traditional EBITs where pairs of superconducting magnets are used, a pair
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::75745f95a17a5903e8589aeee8dc1821
https://doi.org/10.1088/0031-8949/2005/t120/007
https://doi.org/10.1088/0031-8949/2005/t120/007
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 29:6113-6121
The kinetic energy spectra of the fragment protons and deuterons produced in the dissociative photoionization of and by 29.5 - 60 eV photons have been measured perpendicular to the E vector of the radiation. It is shown that the superexcited state an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a3069fb1d93a92967454ea30d7fdc80
https://doi.org/10.1088/0953-4075/29/24/017
https://doi.org/10.1088/0953-4075/29/24/017