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Insertion devices have several undesirable effects on the beam dynamics of a synchrotron storage ring, and these must be compensated for in order to ensure long term stable operation. This master’s thesis concerns the two first insertion devices at the MAX IV facility, two in-vacuum undulators for the BioMAX and NanoMAX beamlines. The report presents the work done to neutralize closed-orbit distor
Eleni KarageorgiouRethinking solidarity in European asylum law: A critical reading of the key concept in contemporary refugee policyDatum för disputation: fredagen den 16 november 2018Fakultetsopponent: professor Elspeth Guild, Queen Mary School of Law, London, och Radbouds universitet, NijmegenÄmne: folkrättAbstractAccording to Article 80 of the Treaty on the Functioning of the European Union (TF
https://www.jur.lu.se/forskning/disputationer/disputationer-2018 - 2026-10-11
In this chapter, we compare the class composition of four types of anti-austerity demonstrations—Occupy/Indignados, trade union, May Day and other anti-austerity protests—with “new social movement” demonstrations. This allow us to, firstly, scrutinize whether contemporary anti-austerity protests attract more participants from the lower classes—in particular the working class—than from the upper st
Short-wavelength synchrotron radiation excitation has been an indispensable tool in the studies of the properties of wide gap materials using time-resolved low-temperature luminescence spectroscopy. In recent years, several setups for such investigations have been launched at MAX IV Laboratory and Photon Science at DESY. Two permanently stationed time-resolved luminescence setups at FinEstBeAMS an
We have developed and built a full-scale, compact APPLE X undulator prototype, intended for use at single-pass machines and fourth-generation storage rings where a small round vacuum chamber can be accommodated. It uses permanent magnets and features a very compact mechanical structure. The undulator is a photon source with full polarization control. The compactness of its structure reduces the ov
The 3 GeV electron storage ring of the MAX IV laboratory is the first storage-ring-based synchrotron radiation facility with the inner surface of almost all the vacuum chambers along its circumference coated with non-evaporable getter (NEG) thin film. The coating provides a low dynamic outgassing rate and pumping of active gases. As the NEG coating was applied on an unprecedented scale, there were
The MAX IV 3 GeV storage ring is the first light source to make use of a multibend achromat lattice to reach ultralow emittance. After extensive commissioning efforts, the storage ring is now ramping up its user program. We present results from beam commissioning of the MAX IV 3 GeV storage ring as well as a summary of the beam dynamics studies that have so for been carried out. We report on injec
The MAX IV Linac is now in routine operation for injection into two storage rings, and as a high-brightness driver for a Short Pulse Facility (SPF). In short-pulse mode the electron bunch is created in a photo cathode gun and compressed in two double achromat bunch compressors that also linearise longitudinal phase space with the second order transfer matrix element T566. T566 in the compressors c
This thesis utilizes securitization theory in a comparative analysis of security discourses in both the Islamic Republic of Pakistan and Peoples Republic of China by looking at how actors in both states frame and respond to security issues relating to the respective frontier regions of Khyber- pakhtun and Xinjiang The purpose of which has been to produce a paper addressing the complexities that ar
This article explores the lived contradictions entailed in being a young member of the Chinese Communist Party (CCP) today. The focus is on how political and existential issues intersect. It explores partymembership as a strategy for personal mobility among Beijing elite university students by providing an ethnographic account of the quandaries of two young CCP members. Even though one student is
By testing theories from the likes of Seymour Martin Lipset and Francis Fukuyama, this thesis aims to illuminate the correlations between the size of a nation’s middle class and the stability and rigor of its democracy. Using quantitative data on democracy and middle class size in the time surrounding the financial crisis of 2008-2010, this thesis illustrates the parallel declines in both democrac
Antalet företagsförvärv har vuxit snabbt i Sverige under de två senaste årtiondena och är idag en del av viktiga strategiska och ekonomiska beslut för många företag. Ett företagsförvärv kan dessutom vara en mycket stor ekonomisk risk för den förvärvande parten. Denna uppsats undersöker processen för ett företagsförvärv från den förvärvande partens perspektiv samt ur ett rättsekonomiskt perspektiv.The amount of acquisitions has grown rapidly in Sweden during the past two decades and are today a very important strategic and financial decision for many companies. A corporate acquisition could also be a very big financial risk for the acquiring party. This thesis researches the process of corporate acquisitions from the perspective of the acquiring party with a focus on an economic analysis of
