The SPECIES beamline at the MAX IV Laboratory: a facility for soft X-ray RIXS and APXPS

Urpelainen, Samuli; Såthe, Conny; Grizolli, Walan; Agåker, Marcus; Head, Ashley R.; Andersson, Margaretha; Huang, Shih Wen; Jensen, Bente; Wallén, Erik; Tarawneh, Hamed; Sankari, R.; Nyholm, R.; Lindberg, Mirjam; Sjöblom, Peter; Johansson, Niclas; Reinecke, Benjamin N.; Arman, Mohammad A.; Merte, Lindsay R.; Knudsen, Jan; Schnadt, Joachim; Andersen, Jesper N; Hennies, Franz

doi:10.1107/s1600577516019056

Cited by 44 publications

(36 citation statements)

References 33 publications

(37 reference statements)

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“…Although the total power of an undulator with a high K value is in general higher than that of an undulator with a low K value, the power densities of equally long devices do not scale similarly. As an example, we can compare the present undulator, with K = 10.065 at 4.3 eV, to the undulator of the SPECIES beamline[9] at the MAX IV Laboratory. That undulator was designed for an equally long straight section and to have K max = 4.88 at 27 eV.…”

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confidence: 99%

FinEstBeaMS – A wide-range Finnish-Estonian Beamline for Materials Science at the 1.5 GeV storage ring at the MAX IV Laboratory

Pärna

Sankari

Kukk

et al. 2017

Nuclear Instruments and Methods in Physics Research Section A:

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The FinEstBeaMS beamline is under construction at the 1.5 GeV storage ring of the MAX IV Laboratory at Lund, Sweden. It has been designed to cover an unusually wide energy range from ultraviolet (4.3 eV) to soft X-rays (1000 eV) but experiments will also be possible at the Mg and Al Kα energies. Instead of having two different insertion devices and optical schemes for low and high photon energy regions, we have based our design on a single long-period, elliptically polarizing undulator and a plane grating monochromator. This solution will provide very good conditions for planned experiments in the whole photon energy region. The beamline will have two branches: one will mainly be used to investigate free atoms, molecules and clusters with photoelectron/photoion coincidence spectroscopy as well as solids with photoluminescence spectroscopy whereas the other one will be dedicated to ultra-high vacuum studies of surfaces and interfaces, utilizing X-ray photoelectron spectroscopy and X-ray absorption

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mentioning

confidence: 99%

FinEstBeaMS – A wide-range Finnish-Estonian Beamline for Materials Science at the 1.5 GeV storage ring at the MAX IV Laboratory

Pärna

Sankari

Kukk

et al. 2017

Nuclear Instruments and Methods in Physics Research Section A:

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“…The experiments were carried out at the APXPS end station [17,18] of the SPECIES beamline [19] at the MAX IV Laboratory in Lund, Sweden. In short, the end station is equipped with a hemispherical SPECS Phoibos NAP-150 electron energy analyzer and allows for measurements both at ultra-high vacuum (UHV) conditions as well as up to 25 mbar in an ambient pressure (AP) cell.…”

Section: Methodsmentioning

confidence: 99%

Pre-deliquescent water uptake in deposited nanoparticles observed with in situ ambient pressure X-ray photoelectron spectroscopy

Lin¹,

Kamal²,

Wang³

et al. 2019

Preprint

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In this work we study the adsorption, or uptake, of water onto deposited inorganic sodium chloride and organic malonic acid and sucrose nanoparticles at low relative humidities from 0 to 16%. We employ the surface sensitive ambient pressure x-ray photoelectron spectroscopy technique, which has a detection sensitivity from parts per thousand. Our results show that water is adsorbed on sodium chloride aerosols already well below deliquescence at low relative humidities, and that the chemical environment on the aerosol surface is changing with increasing humidity. While the sucrose aerosols exhibit only very modest changes on the surface at these relative humidites, the chemical composition and environment of malonic acid aerosol surfaces is clearly affected. Our observations indicate that the water uptake by inorganic and organic aerosols at low relative humidities could already have an impact on atmospheric chemistry. We also conclude that the ambient pressure x-ray photoelectron spectroscopy is indeed a viable tool for studying changes in particular on the surfaces of atmospherically relevant aerosols at low relative humidities.

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“…APXPS measurements were performed at the APXPS branch line of the SPECIES beamline 15,16 at the MAX IV Laboratory. As the beamline currently is in commissioning, the equipped unmonochromatized SPECS XR-50 17 X-ray anode was used to generate Mg K radiation (1253.64 eV) for spectrum acquisition.…”

Section: Ambient Pressure Xpsmentioning

confidence: 99%

Surface oxide development on aluminum alloy 6063 during heat treatment

Rullik

Evertsson

Johansson

et al. 2019

Surface & Interface Analysis

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We report on the influence of oxygen partial pressure for the development of surface oxides covering the industrial aluminum alloy standard 6063 at temperatures ranging from room temperature to 500° C. Using an array of synchrotron‐based techniques, we followed the change in oxide thickness, chemical composition, and the lateral distribution of alloying elements. The impact of the oxygen chemical potential is most visible at high temperatures where the oxide composition changes from mostly Al based to mostly Mg based. This is in stark contrast to the ultra‐high vacuum (UHV) conditions where only a partial compositional transition is observed. The microscopy data demonstrate that in the UHV case, Mg segregation onto the surface occurs firstly at grain boundaries at 300° C and secondly at sites over the entire surface at 400° C. Further, the initial oxide thickness is 45 Å, as determined by XPS and XRR, decreases in all observed cases after heating to 300° C. At higher temperatures, however, the oxygen partial pressure highly influences the resulting oxide thickness as evident from our X‐ray reflectivity data.

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The SPECIES beamline at the MAX IV Laboratory: a facility for soft X-ray RIXS and APXPS

Cited by 44 publications

References 33 publications

FinEstBeaMS – A wide-range Finnish-Estonian Beamline for Materials Science at the 1.5 GeV storage ring at the MAX IV Laboratory

FinEstBeaMS – A wide-range Finnish-Estonian Beamline for Materials Science at the 1.5 GeV storage ring at the MAX IV Laboratory

Pre-deliquescent water uptake in deposited nanoparticles observed with in situ ambient pressure X-ray photoelectron spectroscopy

Surface oxide development on aluminum alloy 6063 during heat treatment

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