European Seminar on Accelerator Alignment 2025

Jun 3, 2025, 6:00 PM → Jun 5, 2025, 2:00 PM Europe/Paris

Auditorium (ESRF, Grenoble)

David Martin

This third European Seminar on Accelerator Alignment will be held at the ESRF from 3 - 5 June 2025, following the success of the previous seminars in June 2023 and April 2024 at the ESRF and CERN. This seminar serves as a platform for knowledge exchange and collaboration, fostering a strong European community dedicated to Accelerator, Detector, and Beamline Alignment. Discussions will cover a range of key topics, including advanced instruments, measurement techniques, uncertainty analysis, the Engineering to Alignment (E2A) workflow, software solutions, artificial intelligence, machine learning, and workforce development challenges.

 

Tuesday, June 3

6:00 PM Welcome Cheese & Wine

Wednesday, June 4

Project Overview

Convener: Jorn Jacob

1 Welcome and Introduction

Speaker: Jorn Jacob

2 Double RF System (fundamental + harmonic) for SOLEIL-II (REMOTE)

Synchrotron SOLEIL has now entered a new major upgrade phase with the
SOLEIL-II project, which aims at designing and operating a 4th generation
light source. The SOLEIL-II storage ring will rely on a double RF system
with fundamental and harmonic cavities, which will compensate the energy
loss per turn and provide long enough bunches to preserve the extremely low
emittance while insuring a suitable lifetime. A status of this RF system
study is reported in this presentation.

Speaker: Massamba Diop (Synchrotron SOLEIL)

3 Third Harmonic System Status for ALBA and ALBA-II

Speaker: Jesús Ocampo

4 Status of a Triple RF System for the MAX IV Rings (REMOTE)

Speaker: Åke Andersson (MAX IV Laboratory, Lund University)

5 KEK: Project Status

Speaker: Naoto Yamamoto (KEK)

10:20 AM Coffee Break

Beam Dynamics

6 Equilibrium Bunch Distributions with an Active 4th Harmonic Cavity

Speaker: Lee Carver (ESRF)

7 Harmonic Cavity Simulations using the RF Feedback

Speaker: Alexis Gamelin (Synchrotron SOLEIL)

8 Experimental Documentation of the Mode-1 Instability driven by Landau Cavities

Speaker: Francis Cullinan (MAX IV Laboratory)

12:05 PM Lunch

Beam Dynamics

9 Bunch Lengthening Affected by the Short Range Effect of Resonant Modes in RF Cavities

Speaker: Tianlong He (NSRL, USTC)

10 Predictions of slow longitudinal mode-1 instability in storage rings with harmonic cavities (REMOTE)

Speaker: Murilo Barbosa Alves (Brazilian Synchrotron Light Laboratory)

11 Third Harmonic Active EU-HOM damped cavity commissioning results

Speaker: Pol Solans (CELLS - ALBA Synchrotron)

12 Discussion

3:45 PM Coffee break

Project Overview

13 Discussion on EU Collaboration (REMOTE)

Speaker: Pedro Fernandes Tavares (MAX IV Laboratory, Lund University)

7:30 PM Workshop dinner

Thursday, June 5

Engineering R&D

14 Development of a Single Mode Cavity for the Third Harmonic RF-System of PETRA-IV

Speaker: Peter Hülsmann (DESY)

15 4th Harmonic Cavities in TM020 for ESRF-EBS and SOLEIL-II

Speaker: Alessandro D'Elia (ESRF)

16 Superconducting RF transverse deflecting cavities for short x-ray pulses at Elettra 2 (REMOTE)

Speaker: Simone Di Mitri (Elettra Sincrotrone Trieste)

17 Development of the 3.5 Harmonic Cavities at Helmholtz-Zentrum Berlin

Speaker: Andranik Tsakanian (Helmholtz-Zentrum Berlin)

10:40 AM Coffee Break

Facility Visit