TY  - JOUR
A1  - Ovsyannikov, Ruslan
A1  - Karlsson, P.
A1  - Lundqvist, M.
A1  - Lupulescu, C.
A1  - Eberhardt, W.
A1  - Föhlisch, Alexander
A1  - Svensson, S.
A1  - Martensson, N.
T1  - Principles and operation of a new type of electron spectrometer - ArTOF
JF  - Journal of electron spectroscopy and related phenomena : the international journal on theoretical and experimental aspects of electron spectroscopy
N2  - A new energy and angular electron analyzer ArTOF (Angular Resolved Time of Flight) is described. The analyzer is based on simultaneous measurement of flight times and angles in an advanced electron lens system. In angular modes the new analyzer combines an increase in transmission by almost three orders of magnitude with improved resolution, in comparison to standard state-of-the-art electron spectrometers. In this report we describe some design principles and we give a review of calibration and alignment procedures necessary for the use of the ArTOF on a synchrotron radiation facility. Our program scripts to handle the large datasets are also discussed. Furthermore we give a broad description of the new research fields that benefit from the use of the ArTOF and give a short summary of the first results of angle resolved photoemission measurement with ArTOF using the single-bunch X-ray pulses from the BESSY II storage ring facility. (C) 2013 Published by Elsevier B.V.
KW  - ARPES
KW  - Time of flight
KW  - Synchrotron
KW  - Electron spectroscopy
Y1  - 2013
U6  - https://doi.org/10.1016/j.elspec.2013.08.005
SN  - 0368-2048
SN  - 1873-2526
VL  - 191
IS  - 12
SP  - 92
EP  - 103
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Martensson, Nils
A1  - Föhlisch, Alexander
A1  - Svensson, Svante
T1  - Uppsala and Berkeley
BT  - two essential laboratories in the development of modern photoelectron spectroscopy
JF  - Journal of vacuum science & technology : JVST ; an AVS journal / A
N2  - The development of modern photoelectron spectroscopy is reviewed with a special focus on the importance of research at Uppsala University and at Berkeley. The influence of two pioneers, Kai Siegbahn and Dave Shirley, is underlined. Early interaction between the two centers helped to kick-start the field. Both laboratories have continued to play an important role in the field, both in terms of creating new experimental capabilities and developing the theoretical understanding of the spectroscopic processes.
KW  - Electronic structure
KW  - Condensed matter physics
KW  - X-ray emission spectroscopy
KW  - Electron spectroscopy
KW  - Photoelectron spectroscopy
KW  - Nuclear physics
KW  - Storage rings
KW  - Synchrotron radiation
KW  - Gas phase
KW  - Surface science
Y1  - 2022
U6  - https://doi.org/10.1116/6.0001879
SN  - 0734-2101
SN  - 1520-8559
VL  - 40
IS  - 4
PB  - American Institute of Physics
CY  - New York
ER  - 
TY  - JOUR
A1  - Kühn, Danilo
A1  - Sorgenfrei, Florian
A1  - Giangrisostomi, Erika
A1  - Jay, Raphael
A1  - Musazay, Abdurrahman
A1  - Ovsyannikov, Ruslan
A1  - Strahlman, Christian
A1  - Svensson, Svante
A1  - Mårtensson, Nils
A1  - Föhlisch, Alexander
T1  - Capabilities of angle resolved time of flight electron spectroscopy with the 60 degrees wide angle acceptance lens
JF  - Journal of electron spectroscopy and related phenomena : the international journal on theoretical and experimental aspects of electron spectroscopy
N2  - The simultaneous detection of energy, momentum and temporal information in electron spectroscopy is the key aspect to enhance the detection efficiency in order to broaden the range of scientific applications. Employing a novel 60 degrees wide angle acceptance lens system, based on an additional accelerating electron optical element, leads to a significant enhancement in transmission over the previously employed 30 degrees electron lenses. Due to the performance gain, optimized capabilities for time resolved electron spectroscopy and other high transmission applications with pulsed ionizing radiation have been obtained. The energy resolution and transmission have been determined experimentally utilizing BESSY II as a photon source. Four different and complementary lens modes have been characterized. (C) 2017 The Authors. Published by Elsevier B.V.
KW  - Artof
KW  - Electron spectroscopy
KW  - Wide angle
KW  - Time of flight
KW  - Energy resolution
KW  - Synchrotron
Y1  - 2018
U6  - https://doi.org/10.1016/j.elspec.2017.06.008
SN  - 0368-2048
SN  - 1873-2526
VL  - 224
SP  - 45
EP  - 50
PB  - Elsevier
CY  - Amsterdam
ER  -