A miniaturized selective laser melting device for operando X-ray diffraction studies

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Electron Cloud and Synchrotron Radiation characterization of technical surfaces with the Large Hadron Collider Vacuum Pilot Sector

This PhD thesis presents the experimental study on electron cloud (EC) and synchrotron radiation (SR) phenomena affecting the LHC storage ring performance. These phenomena are one of the major issues of the LHC storage ring, generating beam instabilities, ...

EPFL2020

Design of the future circular hadron collider beam vacuum chamber

Lotta Maria Mether

EuroCirCol is a conceptual design study of a post-LHC, Future Circular Hadron Collider (FCC-hh) which aims to expand the current energy and luminosity frontiers. The vacuum chamber of this 100 TeV, 100 km collider, will have to cope with unprecedented leve ...

2020

Beam induced vacuum effects in the future circular hadron collider beam vacuum chamber

Lotta Maria Mether

EuroCirCol is a conceptual design study of a post-LHC, Future Circular Hadron Collider (FCC-hh) with 50 TeV of beam energy and 100 km long, which aims to expand the current energy and luminosity frontiers. The vacuum chamber of the FCC-hh will have to cope ...

2020

Micro-focused MHz pink beam for time-resolved X-ray emission spectroscopy

Christoph Bostedt, Andre Al Haddad

The full radiation from the first harmonic of a synchrotron undulator (between 5 and 12 keV) at the Advanced Photon Source is microfocused using a stack of beryllium compound refractive lenses onto a fast-moving liquid jet and overlapped with a high-repeti ...

2019

Pressure-induced transformation of CH3NH3PbI3: the role of the noble-gas pressure transmitting media

László Forró, Endre Horvath, Andrzej Sienkiewicz, Alla Arakcheeva, Gaétan Charles Antoine Giriat, Bálint Náfrádi, Márton Kollár, Anastasiia Glushkova

The photovoltaic perovskite, methylammonium lead triiodide [CH3NH3PbI3 (MAPbI(3))], is one of the most efficient materials for solar energy conversion. Various kinds of chemical and physical modifications have been applied to MAPbI(3) towards better unders ...

International Union of Crystallography (IUCr)2019

A teaching showcase unveils the links between special relativity and the birth of quantum physics

Giorgio Margaritondo

Quantum effects scale up with the frequency of electromagnetic waves. Therefore, modern synchrotron sources of high-frequency x-rays-that can be visited by students either personally or online-offer an opportunity for a captivating introduction to basic qu ...

2019

The relativistic foundations of synchrotron radiation

Giorgio Margaritondo

Special relativity (SR) determines the properties of synchrotron radiation, but the corresponding mechanisms are frequently misunderstood. Time dilation is often invoked among the causes, whereas its role would violate the principles of SR. Here it is show ...

International Union of Crystallography (IUCr)2017

Ultrafast Photoelectron Spectroscopy of Liquid Samples

José Javier Pancracio Ojeda Andara

This thesis focuses on the commissioning and characterization of HARMONIUM, an ultrafast tunable EUV source based on high-harmonic generation for performing photoelectron spectroscopy of liquids. In ultrafast photoelectron spectroscopy a short pump pulse i ...

EPFL2016

Beam Dynamics Studies in Recirculating Machines

Dario Pellegrini

The LHeC and the CLIC Drive Beam share not only the high-current beams that make them prone to show instabilities, but also unconventional lattice topologies and operational schemes in which the time sequence of the bunches varies along the machine. In ord ...

EPFL2016

Crystal structures of eight mono-methyl alkanes (C-26-C-32) via single-crystal and powder diffraction and DFT-D optimization

Philip Pattison

The crystal structures of eight mono-methyl alkanes have been determined from single-crystal or high-resolution powder X-ray diffraction using synchrotron radiation. Mono-methyl alkanes can be found on the cuticles of insects and are believed to act as rec ...

Int Union Crystallography2015

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Electron Cloud and Synchrotron Radiation characterization of technical surfaces with the Large Hadron Collider Vacuum Pilot Sector

Elena Buratin

EPFL2020

Crystal structures of eight mono-methyl alkanes (C-26-C-32) via single-crystal and powder diffraction and DFT-D optimization

Philip Pattison

Int Union Crystallography2015

Design of the future circular hadron collider beam vacuum chamber

Lotta Maria Mether

2020