Zobrazeno 1 - 10
of 73
pro vyhledávání: '"Björn Wannberg"'
Autor:
Svante Svensson, Per Karlsson, Gunnar Öhrwall, Wolfgang Eberhardt, Björn Wannberg, H. Duerr, M. Lundqvist, Torsten Kachel, Denis Céolin, Pontus Andersson, M. Wirde
Publikováno v:
Journal of Electron Spectroscopy and Related Phenomena. 183:125-131
A new energy and angle resolved analyzer for photoelectron spectroscopy is described. This analyzer is based on combining an advanced focusing electron lens system with time-of-flight measurements. ...
Autor:
Björn Wannberg
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 601:182-194
The demand for simultaneous observation of photo-electron distributions in several dimensions has made the hemispherical deflection analyzer (HDA) and the time-of-flight (TOF) analyzer the dominating spectrometer types. Some common limiting factors f
Autor:
Björn Wannberg, Toshitada Takeuchi, Osamu Takaoka, Akira Yonezawa, Seiji Morita, Masayuki Maruo, Mitsuyoshi Sato, Akiyoshi Noguchi
Publikováno v:
Journal of Electron Microscopy. 51:149-156
This report describes the characteristics for the development of a compound lens that consists of a single pole-piece objective lens and an electrostatic bipotential lens. By applying a relatively small voltage of around 1 kV to the specimen and the
Publikováno v:
Journal of Electron Spectroscopy and Related Phenomena. 104:245-255
The valence shell photoionization dynamics of acetylene were studied in the photon energy range 13–140 eV using photoelectron spectroscopy and synchrotron radiation. Photoelectron angular distributions and branching ratios were determined for the X
Autor:
David A. Shaw, D.M.P. Holland, P. Baltzer, L. Karlsson, E E Rennie, Björn Wannberg, David Edvardsson
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 32:2583-2609
The absolute photoabsorption, photoionization and photodissociation cross sections and the photoionization quantum efficiency of ammonia and deuterated ammonia have been measured from the ionization threshold to 25 eV using a double ion chamber and m
Autor:
P. Baltzer, Björn Wannberg, L. Karlsson, D.M.P. Holland, M.A. Hayes, John H. D. Eland, M A MacDonald
Publikováno v:
Chemical Physics. 237:451-470
The complete valence shell photoelectron spectrum of the NO 2 molecule has been studied in the binding energy range between 10 and 50 eV. HeI and HeII resonance radiation as well as monochromated synchrotron radiation have been used for the ionisatio
Autor:
Leif Karlsson, Hans Ågren, Olav Vahtras, Vincenzo Carravetta, Li Yang, Björn Wannberg, D.M.P. Holland, M A MacDonald
Publikováno v:
Journal of Electron Spectroscopy and Related Phenomena. 94:163-179
Ab initio calculations of branching ratios and cross-sections for inner- and outer-valence levels of SF 6 have been carried out by means of the static exchange (STEX) approximation including full intrachannel interaction. The calculations cover an en
Publikováno v:
Chemical Physics. 226:351-360
The entire valence shell photoelectron spectrum of boron trifluoride has been studied using synchrotron radiation in the photon energy range 20–120 eV. Photoelectron angular distributions and branching ratios for the six outer valence orbitals have
Publikováno v:
Chemical Physics. 222:229-240
The photoelectron spectrum of ICN has been remeasured with much higher resolution than before. The main bands are vibrationally analysed and are reconciled with the ICN+ ion emission spectrum. The spectrum has several very unusual features; one possi
Autor:
M.A. Hayes, David A. Shaw, P. Baltzer, L. G. Shpinkova, D.M.P. Holland, Björn Wannberg, L. Karlsson, E E Rennie
Publikováno v:
Chemical Physics. 219:91-116
The absolute photoabsorption, photoionisation and photodissociation cross sections and the photoionisation quantum efficiency of ethylene and deuterated ethylene have been measured from the ionisat ...