Zobrazeno 1 - 10
of 15
pro vyhledávání: '"J. L. Forand"'
Autor:
Mark E. Bannister, E W. Bell, J. L. Forand, K. Rinn, X. Q. Guo, J. S. Thompson, Alan Smith, Brett DePaola, Gordon H. Dunn, E. K. Wåhlin, Alfred Müller, D. S. Belić, David Richard Swenson, D. C. Gregory, C. A. Timmer, R. A. Phaneuf
Publikováno v:
Physical Review A. 49:4585-4596
A merged-beams electron-energy-loss technique is described, by which absolute cross sections can be measured for near-threshold electron-impact excitation of multipy charged ions. Results are reported here for absolute total electron-impact excitatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c430e41dde45149c1ffc84b60e6b8837
https://doi.org/10.1103/physreva.49.4585
https://doi.org/10.1103/physreva.49.4585
Autor:
J. L. Forand, David Richard Swenson, Brett DePaola, C. A. Timmer, Gordon H. Dunn, E. K. Wåhlin, K. Rinn
Publikováno v:
Review of Scientific Instruments. 61:3372-3377
A real-time charged particle beam probe was developed, which can be used both as a beam diagnostic (beam tuning) and to quantitatively determine the three-dimensional density distribution of a beam. The probe consists of a microchannel plate, an alum
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f7abdad7fcbb053ad815b487668a5aa
https://doi.org/10.1063/1.1141586
https://doi.org/10.1063/1.1141586
Publikováno v:
IGARSS
The presented effort is aimed at establishing a framework in order to restore underwater imagery to the best possible level, working with both simulated and field measured data. Under this framework, the traditional image restoration approach is exte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d03325b246c88da558e3dbd1b5f9e9e
https://doi.org/10.1109/igarss.2007.4423193
https://doi.org/10.1109/igarss.2007.4423193
Publikováno v:
SPIE Proceedings.
We provide a description of the general meteorological conditions observed during the POLLEX trial, the effects of turbulence on imaging systems, the measurement of the effects of turbulence on a specially constructed image target, and the determinat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1652852f8cecdc8972963e708a3b3eac
https://doi.org/10.1117/12.511159
https://doi.org/10.1117/12.511159
We present preliminary results from recent test of the LUCIE 2 (Laser Underwater Camera Image Enhancer) conducted in Halifax Harbour, Nova Scotia, Canada. LUCIE 2 is a near compact laser range gated camera (25 cm in diameter, 70 cm in length, and neu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a78d3a530ffd55ff3383b8abb086714
https://doi.org/10.21236/ada417137
https://doi.org/10.21236/ada417137
Publikováno v:
Journal of Physics B: Atomic and Molecular Physics. 19:L493-L497
The cross-section for excitation of Lyman- alpha radiation following electron impact of H2 has been measured at 100 eV incident energy. The data were made absolute by comparison with the signal obtained from electron impact on H at the same energy ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::10bce410c9ba23b380a978e4343dbf2f
https://doi.org/10.1088/0022-3700/19/12/008
https://doi.org/10.1088/0022-3700/19/12/008
Publikováno v:
Canadian Journal of Physics. 67:699-705
Dissociative excitation of CF4 by electron impact has been studied under single-collision conditions for incident energies up to 600 eV. The emission spectrum in the range 50–130 nm shows many features arising from neutral and singly ionized fluori
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7c056adef47c0846f4fada87dff5d80
https://doi.org/10.1139/p89-126
https://doi.org/10.1139/p89-126
Publikováno v:
Journal of Physics B: Atomic and Molecular Physics. 19:L209-L213
A VUV polarisation analyser is employed in an electron-polarised-photon coincidence experiment to determine circular/linear polarisation correlations from the differential electron impact excitation of the 21P state of helium. Circular polarisation c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::742b6fb4f3240272d42aa361555fb362
https://doi.org/10.1088/0022-3700/19/6/007
https://doi.org/10.1088/0022-3700/19/6/007
Autor:
R. E. Mitchell, J. B. A. Mitchell, J. L. Forand, A. Sen, D. P. Levac, D. B. Miko, C. T. Ng, J. Wm. McGowan
Publikováno v:
Physical Review Letters. 50:335-338
With use of a merged electron-ion beam apparatus, a lower limit of dielectronic recombination cross section for ${\mathrm{C}}^{+}(^{2}P)+e$ has been obtained from 9.04 to 9.32 eV. The measured cross section exceeds the theoretically predicted value b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92762cc95f5660e384f832bf06c59654
https://doi.org/10.1103/physrevlett.50.335
https://doi.org/10.1103/physrevlett.50.335
Publikováno v:
Journal of Physics B: Atomic and Molecular Physics. 17:L915-L919
The authors have measured the rotational envelopes of selected vibrational bands of H2, D2, N2 and CO following excitation of cooled ( approximately 25K) gas beams. The observed broadening in N2 and CO at low impact energies is attributed to a breakd
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2baddea75579164abe7b13e1e6d47d10
https://doi.org/10.1088/0022-3700/17/24/014
https://doi.org/10.1088/0022-3700/17/24/014