Zobrazeno 1 - 10
of 48
pro vyhledávání: '"B Srigengan"'
Autor:
W R Newell, J. F. McCann, B. Srigengan, D. S. Murphy, Liang-You Peng, Ian Williams, John N. Wood, J. A. McKenna, W. A. Bryan, E. M. L. English, M. Suresh, S. L. Stebbings, I. C. E. Turcu, John Collier
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 40:2607-2619
The dynamics of dissociation of pre-ionized D+2 molecules using intense (1012–1015 W cm−2), ultrashort (50 fs), infrared (λ = 790 nm) laser pulses are examined. Use of an intensity selective scan technique has allowed the deuterium energy spectr
Autor:
E. J. Divall, Ian Williams, W R Newell, C. J. Hooker, M. Suresh, A. J. Langley, W. A. Bryan, E.M.L. English, S. L. Stebbings, B. Srigengan, J. A. McKenna
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 235:216-220
Non-sequential processes in the multiple ionization of Xe and Xe + targets subject to intense femtosecond laser pulses have been investigated. A precise ratio has been determined for the direct comparison of ionization using circular and linear polar
Publikováno v:
IEE Proceedings - Science, Measurement and Technology. 147:274-278
An experimental study has been carried out using a quadrupole mass spectrometer (QMS) in which a static magnetic field is applied transversely to the body of the filter. These results have been compared with theoretical mass spectra obtained by compu
Autor:
W R Newell, A. J. Langley, Ian Williams, Philip F. Taday, Joseph Sanderson, B. Srigengan, A.A.A. El-Zein, I. M. G. Johnston, W. A. Bryan, T. R. J. Goodworth, Paul McKenna
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 33:2743-2752
A fast beam of H2+ ions, produced from a low energy ion accelerator, has been used for the first time in intense laser field experiments. The technique has enabled neutral dissociation products to be analysed and detected for the first time in such s
Publikováno v:
Measurement Science and Technology. 9:930-938
An electron-ion crossed beams experiment has been developed in which the energy loss of scattered electrons is used to determine cross sections for excitation in positive ions. Scattered electrons are confined by an axial magnetic field and are chann
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 29:L897-L900
Angular differential measurements from a new electron - ion crossed-beams instrument suggest dynamic effects play only a minor role in forward scattering from almost fully dressed ions. This is contrary to the predictions of a recent many-body theory
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 29:L605-L610
First experimental results are presented from a new electrostatic spectrometer designed to study electron scattering from positive ions. Measurements of elastic scattering from have been carried out over the centre-of-mass energy interval 12 - 24 eV
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 28:L307-L311
Measurements of absolute partial cross sections, integrated over the angular range 90 degrees -180 degrees , are reported for the elastic scattering of electrons from Ar+ at impact energies 3.5-6.5 eV. These constitute the first measurements of backw
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 98:125-128
First experimental results are reported for high angle elastic scattering of electrons from an ion at collision energies below the inelastic threshold. Absolute partial cross sections have been measured for the angular range π 2−π for Ar+ over th
Autor:
E. M. L. English, B. Srigengan, W R Newell, Ian Williams, M. Suresh, Jean M. McKenna, S. L. Stebbings, I. C. E. Turcu, W. A. Bryan
Publikováno v:
Photonic, Electronic and Atomic Collisions.