Arrival day and registration

Opening

• Frank Tecker (CERN)

Transverse beam dynamics recap I

• Hermann Schmickler

Local Presentation

• Toni Sculac (University of Split Faculty of Science (HR))

Measurement Principles I

• Gero Kube

Transverse beam dynamics recap II

• Hermann Schmickler

Measurement Principles II

• Gero Kube

Longitudinal beam dynamics recap

• Frank Tecker (CERN)

This talk gives a short review of longitudinal beam dynamics for both linear and circular accelerators. It covers the basics of acceleration in a linac. For radio-frequency (RF) acceleration, it introduces the concepts of synchronicity and the oscillation around the synchronous particle, including the criterium for stability of the oscillations. For circular accelerators, the lecture focuses on synchrotrons, their operation principle and their longitudinal beam dynamics. It reviews the synchrotron oscillations, their stability conditions and their representation in longitudinal phase space. Then it explains the concept of longitudinal phase space matching and its importance when you transfer the beam from one accelerator to another. Finally, it presents the Hamiltonian for the longitudinal motion.

One slide - one minute

Time-and Frequency Domain signals I

• Hermann Schmickler

Transverse Profile Measurements I

• Laura Torino

"Monitoring the transverse beam profile is a crucial aspect of accelerator operation. It is not only a necessary parameter for emittance measurement but also essential for assessing the health and performance of the entire accelerator system. This lecture will examine some of the most widely used transverse beam profile monitors, focusing on their underlying physical principles, their technical components and how they are integrated in accelerator machines.

Time-and Frequency Domain signals II

• Hermann Schmickler

RF measurement techniques

• Manfred Wendt

Hands-on - Block I

• Piotr Kowina
• Diogo Alves (CERN)
• Manfred Wendt
• Christine Vollinger (CERN)
• Rhodri Jones (CERN)
• Michal Krupa (CERN)
• Ein Nutzer weniger
• Gero Kube

Hands-on - Block I

• Kay Wittenburg (Deutsches Elektronen-Synchrotron (DE))
• Rhodri Jones (CERN)
• Ein Nutzer weniger
• Christine Vollinger (CERN)
• Diogo Alves (CERN)
• Manfred Wendt
• Piotr Kowina

Introduction to Optics (basics, components, diffraction)

• Stephen Gibson

Transverse Profile Measurements II

• Laura Torino

Monitoring the transverse beam profile is a crucial aspect of accelerator operation. It is not only a necessary parameter for emittance measurement but also essential for assessing the health and performance of the entire accelerator system. This lecture will examine some of the most widely used transverse beam profile monitors, focusing on their underlying physical principles, their technical components and how they are integrated in accelerator machines

Time-and Frequency Domain signals III

• Hermann Schmickler

BPM systems I

• Manfred Wendt

Hands-on - Block I

• Diogo Alves (CERN)
• Manfred Wendt
• Rhodri Jones (CERN)
• Laurence Stant
• Piotr Kowina
• Marek Gasior (CERN)
• Christine Vollinger (CERN)

Hands-on - Block I

• Diogo Alves (CERN)
• Christine Vollinger (CERN)
• Piotr Kowina
• Manfred Wendt
• Rhodri Jones (CERN)
• Marek Gasior (CERN)
• Laurence Stant

Emittance Measurements

• Gero Kube

BPM systems II

• Manfred Wendt

Intensity Measurements

• Marek Gasior (CERN)

Tune, Chromaticity & Coupling Measurements

• Rhodri Jones (CERN)

This presentation takes a look at the ways tune, chromaticity and coupling can be measured in synchrotrons. After briefly introducing the importance of these parameters for machine operation, a broad overview of the various instrumentation and analysis techniques used in their determination will be given.

Free / Study time

Analog Digital Conversion

• Marek Gasior (CERN)

Digital Signal Processing I

• Andrea Boccardi (CERN)

Diagnostics in hadron synchrotrons and colliders

• Rhodri Jones (CERN)

This presentation takes a look at how beam diagnostic systems can be used to commission, optimise and solve issues in hadron synchrotrons and high energy colliders

Digital Signal Processing II

• Andrea Boccardi (CERN)

Hands-on - Block II

• Rhodri Jones (CERN)
• Laurence Stant
• Marek Gasior (CERN)
• Christine Vollinger (CERN)
• Diogo Alves (CERN)
• Manfred Wendt
• Piotr Kowina

Hands-on - Block II

• Diogo Alves (CERN)
• Christine Vollinger (CERN)
• Piotr Kowina
• Manfred Wendt
• Rhodri Jones (CERN)
• Marek Gasior (CERN)
• Laurence Stant

Instrument Development - Industrial Perspective

• Peter Paglovec

(Short) Bunch Length Measurements I

• Thibaut Lefevre (CERN)

Optical detection techniques + Lasers

• Stephen Gibson

Short Bunch Length Measurements II

• Thibaut Lefevre (CERN)

Discussion / Q&A I

Hands-on - Block II

• Laurence Stant
• Christine Vollinger (CERN)
• Manfred Wendt
• Piotr Kowina
• Diogo Alves (CERN)
• Rhodri Jones (CERN)
• Marek Gasior (CERN)

Hands-on - Block II

• Diogo Alves (CERN)
• Laurence Stant
• Christine Vollinger (CERN)
• Piotr Kowina
• Rhodri Jones (CERN)
• Marek Gasior (CERN)
• Manfred Wendt

Analog Electronics

• Jeroen Belleman

Beam Loss Monitors

• Kay Wittenburg (DESY)
• Ein Nutzer weniger

This lecture covers the fundamental aspects of the measurement of beam losses including their use for beam diagnostic and safety issues. The detailed functionality and detection principle of various common beam loss monitors are also presented, with a focus on their intrinsic sensitivity.

Diagnostics in light sources I

• Lorraine Bobb

Machine Protection

• Daniel Wollmann (CERN)

The uncontrolled release of even a small fraction of the energy stored in the beams or magnet systems of a high-energy particle accelerator can cause severe damage to accelerator and detector components, potentially resulting in significant downtime. This necessitates a careful evaluation of possible failure scenarios and their mitigation through passive and active protection systems. This lecture will introduce the field of machine protection, providing an overview of the sophisticated machine protection system implemented in the LHC and illustrating failure cases from existing and future accelerators. It will also present insights from material damage tests performed at CERN to assess the consequences of failures beyond design.

Hands-on - Block III

• Laurence Stant
• Christine Vollinger (CERN)
• Diogo Alves (CERN)
• Manfred Wendt
• Piotr Kowina
• Rhodri Jones (CERN)
• Thibaut Lefevre (CERN)

Hands-on - Block III

• Diogo Alves (CERN)
• Christine Vollinger (CERN)
• Manfred Wendt
• Piotr Kowina
• Rhodri Jones (CERN)
• Thibaut Lefevre (CERN)
• Laurence Stant

The Future of Humanity

• Ivica Puljak (University of Split. Fac.of Elect. Eng., Mech. Eng. and Nav.Architect. (HR))

Schottky Diagnostics I

• Diogo Alves (CERN)

This lecture introduces the theoretical foundations of Schottky spectra as a non-invasive diagnostic method in circular accelerators. Starting from the statistical origin of Schottky noise in coasting and bunched beams, we derive how uncorrelated particle motion gives rise to characteristic spectral structures in the vicinity of revolution harmonics. The formation of synchrotron and betatron sidebands is explained, together with their dependence on fundamental beam parameters such as tune, momentum spread, and chromaticity. Emphasis is placed on the linear, single-particle description of beam dynamics and on how the measured frequency-domain signatures emerge directly from microscopic fluctuations. The lecture aims to provide a clear, self-contained theoretical framework for interpreting Schottky spectra in practical accelerator diagnostics.

Diagnostics in lepton-linacs and FELs

• Rasmus Ischebeck (Paul Scherrer Institut)

Diagnostics in light sources II

• Lorraine Bobb

Diagnostics in Advanced Accelerator Experiments

• Rasmus Ischebeck (Paul Scherrer Institut)

Hands-on - Block III

• Diogo Alves (CERN)
• Manfred Wendt
• Piotr Kowina
• Rhodri Jones (CERN)
• Thibaut Lefevre (CERN)
• Laurence Stant
• Christine Vollinger (CERN)

Hands-on - Block III

• Diogo Alves (CERN)
• Manfred Wendt
• Piotr Kowina
• Rhodri Jones (CERN)
• Thibaut Lefevre (CERN)
• Laurence Stant
• Christine Vollinger (CERN)

Free / Study time

Hands-on - Block IV

• Piotr Kowina
• Rhodri Jones (CERN)
• Thibaut Lefevre (CERN)
• Laurence Stant
• Diogo Alves (CERN)
• Manfred Wendt
• Christine Vollinger (CERN)

Hands-on - Block IV

• Piotr Kowina
• Rhodri Jones (CERN)
• Thibaut Lefevre (CERN)
• Laurence Stant
• Christine Vollinger (CERN)
• Manfred Wendt
• Diogo Alves (CERN)

Future Colliders

• Hermann Schmickler

Precise Timing and Synchronization I

• Frank Ludwig

This lecture examines synchronization systems in modern accelerators, focusing on radio-frequency (RF) methods and their role in achieving sub-10-fs beam arrival time precision. After motivating the need for high-precision timing, we analyze the short- and long-term stability of RF synchronization systems, including their fundamental limitations in ultra-low-jitter regimes. The discussion covers key microwave components—such as phase-locked loops (PLLs), mixers, oscillators, cables, amplifiers, and detectors—with emphasis on their phase-noise behavior, modeling techniques, and measurement techniques. We then explore global implementation strategies for synchronizing accelerator subsystems, highlighting approaches like un-stabilized chain systems, optical resynchronization, passive temperature stabilization, interferometer-based methods, and unidirectional transmission. Particular attention is given to subsystems critical for sub-10-fs jitter performance, including low-level RF (LLRF) systems and RF oscillator architectures, whose instabilities dominate timing errors in cutting-edge facilities.

Real-time Feedback on machine parameters

• Günther Rehm

Realtime Feedbacks are widely used in accelerators these days. These feedbacks use diagnostic systems as their inputs, while controlling a variety of “levers“ to keep the observed parameters stable. Some basic common conceptual ideas of feedback loops will be introduced, typical shortfalls and limitations will be discussed and many use cases will be illustrated using examples of feedback systems.

Precise Timing and Synchronization II

• Frank Ludwig

This lecture shifts to optical synchronization techniques, which enable sub-10-fs precision in modern accelerators by leveraging the advantages of light-based distribution, especially for long distances. We present design principles and engineering best practices to minimize distortions—challenges shared by both RF and optical systems when interfaced with high-performance readout electronics. The core components of pulsed optical distribution systems are discussed, including mode-locked lasers, phase-locking mechanisms, optical link stabilization, optical resynchronization, bunch-arrival-time monitors, and laser arrival-time monitors. The lecture concludes with an outlook on hybrid synchronization systems, which combine RF and optical strengths to optimize performance. Topics include unified modeling frameworks, advanced feedback control, quantitative performance evaluation and external disturbances like seismic-effects.

Impact of collective effects on instrumentation design

• Christine Vollinger (CERN)

Hands-on - Block IV

• Thibaut Lefevre (CERN)
• Laurence Stant
• Rhodri Jones (CERN)
• Piotr Kowina
• Manfred Wendt
• Diogo Alves (CERN)
• Christine Vollinger (CERN)

Hands-on - Block IV

• Thibaut Lefevre (CERN)
• Laurence Stant
• Rhodri Jones (CERN)
• Christine Vollinger (CERN)
• Diogo Alves (CERN)
• Manfred Wendt
• Piotr Kowina

Machine learning applications in BI I

• Elena Fol

The target of this lecture is to provide an overview of ML algorithms and to indicate beam diagnostics tasks where ML based solutions can be efficiently applied to complement or potentially surpass traditional methods. Some fundamental concepts of machine learning algorithms will be introduced, typical challenges and practical considerations will be discussed, followed by demonstration of accelerators application of the introduced ML concepts in the second lecture.

Halo diagnostics

• Kay Wittenburg (DESY)

Beam halo measurements imply measurements of beam profiles with a very high dynamic range, both in transverse and longitudinal planes. This lesson gives an overview of high dynamic range instruments for beam halo measurements. In addition, halo definitions and quantifications in view of beam instrumentation are discussed.

Schottky Diagnostics II

• Piotr Kowina

Machine learning applications in BI II

• Elena Fol

The second part of the lecture will focus on real-world applications, demonstrating how ML is currently employed in anomaly detection analysis in beam position monitors, beam optics measurements denoising, longitudinal profile measurements, and automated diagnostic systems across various accelerator facilities.

Diagnostics for FCC-ee

• Thibaut Lefevre (CERN)

Summary/Panel Discussion

Closing

• Frank Tecker (CERN)