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Diagnostics Experts of European Light Sources [DEELS]

12–13 May 2025
Elettra-Sincrotrone Trieste
Europe/Rome timezone

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Contribution List

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  1. 13. Welcome
    Gabriele Brajnik (Elettra-Sincrotrone Trieste), Mr Raffaele De Monte (Elettra Sincrotrone Trieste S.C.p.A.), Silvano Bassanese (Elettra Sincrotrone Trieste S.C.p.A.)
    12/05/2025, 09:30
    Oral presentation
    Session 1

    Welcome

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  2. 8. Beam Loss Monitors for Elettra 2.0
    Sandi Grulja (Elettra Sincrotrone Trieste)
    12/05/2025, 10:00
    Oral presentation
    Session 1

    The upcoming upgrade of the Elettra synchrotron to Elettra 2.0 demands a new generation of beam diagnostics capable of supporting its enhanced performance and stability requirements. In this context a novel Beam Loss Monitor (BLM) system has been developed integrating fast scintillating fiber detectors coupled to silicon photomultipliers (SiPMs) for precise and distributed loss detection...

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  3. 1. Measurement at the ESRF of : a) injection efficiency and b) the time-resolved losses of these injections
    Kees SCHEIDT (ESRF)
    12/05/2025, 10:30
    Beam Losses
    Oral presentation
    Session 1

    a) The injection efficiency measurement is crucial for both operation and optimization studies for the ESRF Storage Ring (SR). It is performed by using a set of BPM-buttons and associated BPM electronics, in both the Injector and the SR and this yield results at each injection shot (4Hz), with sub % precision and even for a very low injected current of 50uA on top of the stored 200mA. This...

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  4. 2. Effect of mechanical vibrations on beam stability at the ESRF
    Benoit Roche (ESRF)
    12/05/2025, 11:30
    Stability
    Oral presentation
    Session 2

    We will show stability measurements of the electron beam together with vibration measurements of some elements of the storage ring of the ESRF (magnets and vacuum chambers). The effect of these mechanical vibrations on the stability of the beam will be discussed, and we will give some ideas on how to improve the stability of the beam.

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  5. 18. Discussion Trigger: Comparison of Different Bunch Charge Monitors used at the ARES Accelerator at DESY
    Timmy Lensch (Deutsches Elektronen Synchrotron DESY)
    12/05/2025, 12:00
    Discussion trigger
    Session 2

    The ARES (Accelerator Research Experiment at SINBAD) is a conventional S-band linear RF accelerator allowing the production of low charge ultra-short electron bunches within a range of currently 0.01 pC to 250 pC. The R&D accelerator also hosts various experiments. Different types of charge monitors are installed along the 45m long machine: A new Faraday Cup design had been simulated and...

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  6. 3. New Photon BPM setup using SiC devices in photoconductive mode
    Matija Colja
    12/05/2025, 12:30
    Stability
    Oral presentation
    Session 2

    Silicon carbide (SiC) is a wide bandgap semiconductor material known for its excellent electrical, thermal, and mechanical properties. For these reasons, SiC detectors are increasingly being used as photon beam position monitors (pBPMs) in synchrotron radiation facilities, mainly replacing tungsten blades operating in photoemission mode.
    We propose an innovative method using a matrix of...

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  7. 15. Real time diagnostics and operation of SOLARIS
    Jacek Biernat (NCPS Solaris UJ)
    13/05/2025, 09:30
    Stability
    Oral presentation
    Session 5

    The presentation will be focused on real time diagnostic of the SOLARIS storage ring including on line ML analysis, stability forecasting and commissioning/measurement with the newly installed Bunch by Bunch feedback. In the second part of the talk recent failures of the ring subsystems and possible solutions will be discussed.

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  8. 16. Characterization tests of cSTART’s beam position monitor
    Dima El Khechen (KIT)
    13/05/2025, 10:00
    BPM
    Oral presentation
    Session 5

    The scientific objective of the cSTART project (compact STorage ring for Accelerator Research and Technology) is the proof of concept for the injection and circulation of ultrashort electron bunches in a storage ring and the demonstration of novel laser-plasma accelerators (LPA) as injectors for storage rings. The cSTART project at KIT is in the phase of the FDR (final design report), and...

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  9. 7. Home Made Button Type BPMs: simulations, real results and failures.
    Stefano Cleva (Elettra Sincrotrone Trieste)
    13/05/2025, 10:30
    BPM
    Oral presentation
    Session 5

    In order to validate the electromagnetic design of beam position monitor (BPM) devices for fourth generation storage rings, three families of button type pick-up were developed based on vacuum sealing adhesive technology. The idea of gluing components for vacuum sealing purposes is not new in the accelerator field, although this approach seems to be mainly dedicated to solving vacuum leak...

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  10. 11. Button BPM Prototypes for ALBA II: Characterization Results
    Laura Torino (ALBA-CELLS)
    13/05/2025, 11:30
    BPM
    Oral presentation
    Session 6

    Within the ALBA II upgrade project, a novel button Beam Position Monitor (BPM) design has been prototyped. This contribution presents the characterization results obtained from button prototypes manufactured by two distinct companies, along with the derived conclusions. Furthermore, we also present the preliminary design of a new button intended for direct welding to a copper vacuum chamber.

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  11. 12. SOLEIL II BPMs development progress
    moussa El ajjouri (SOLEIL Synchrotron)
    13/05/2025, 12:00
    BPM
    Oral presentation
    Session 6

    Three different types of Beam Position Monitors will equip SOLEIL II storage ring. To ensure consistent signal levels across varying pipe diameters, two button sizes were selected: 6 mm diameter buttons for 16 mm beam pipes, and 7 mm diameter buttons for the 20 mm and 24 mm sections. Electromagnetic and thermal simulations have been conducted to validate the proposed designs. In parallel,...

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  12. 4. Discussion Trigger: Reflective vs Reflectionless (Absorptive) RF filters in BPM front ends
    Gabriele Brajnik (Elettra-Sincrotrone Trieste), Stefano Cleva (Elettra Sincrotrone Trieste)
    13/05/2025, 12:30
    BPM
    Discussion trigger
    Session 6

    Reflective and reflectionless RF filters play important but different roles in radio frequency systems. Reflective filters, traditionally designed using lumped or distributed elements, reject out-of-band signals by reflecting them back towards the source, potentially causing standing waves and impedance mismatch. In contrast, reflectionless filters absorb out-of-band energy internally,...

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  13. 14. Discussion Trigger: Early commissioning beam size measurement
    cigdem ozkan loch (paul scherrer institute)
    13/05/2025, 14:00
    Beam Size
    Discussion trigger
    Session 7

    Our beam size monitor employs π-polarized visible light and Fresnel zone plates (FZPs). There was an intriguing discrepancy during early commissioning between the two techniques. Beam size measurements using visible light matched expectations, while those obtained with FZPs were significantly larger. Interestingly, the FZP-measured beam size gradually decreased with accumulated beam dose.
    I...

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  14. 6. XDBL1 diagnostic beamline
    Silvano Bassanese (Elettra Sincrotrone Trieste S.C.p.A.)
    13/05/2025, 14:30
    Oral presentation
    Session 7

    Three dedicated beamlines for accelerator diagnostics are under discussion for Elettra 2.0. Two of them will be dedicated to measuring the transverse dimensions of the beam, using the X-ray pinhole camera technique with bending magnets as the source. A third line could transport visible-near UV radiation to a streak camera for the analysis of the longitudinal profile of the beam.
    In this...

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  15. 10. Discussion Trigger: Direct X-Ray imaging for the new pinhole diagnostics at BESSY II
    Marco Marongiu (HZB)
    13/05/2025, 15:00
    Beam Size
    Discussion trigger
    Session 7

    In order to improve our transverse diagnostic tools, two new pinhole beamlines will be designed. The pinhole arrays will be in air for easier maintenance: this will result in a significant loss of X-Ray photons when passing through the vacuum window. To overcome this issue, the option to directly illuminate a CCD/CMOS camera with X-Ray radiation without prior conversion into visible light is...

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  16. 5. Discussion Trigger: Pinholes technologies
    Marco Veronese (Elettra Sincrotrone Trieste S.C.p.A.)
    13/05/2025, 15:30
    Discussion trigger
    Session 7

    For the Elettra 2.0 X-ray pinhole camera (XPC) on beamline XDBL1, we are aiming for pinholes as small as 10 microns. In literature, the technological details of pinhole design are not discussed in great detail. The aim of this discussion is to gather and share experience on the optimal choice of pinhole technology. Starting from the main design concept of a stack of tungsten plates with...

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  17. 17. New DOSFET plus
    Sandi Grulja (Elettra Sincrotrone Trieste)
    Oral presentation
    Session 2

    We present DOSFET Plus, an enhanced remote reader system designed for precise real-time monitoring of radiation dose using RadFET sensors. Building on the original DOSFET architecture. The new system integrates improved analog front end electronics, extended temperature compensation and robust communication capabilities enabling reliable operation in harsh or inaccessible environments. DOSFET...

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