Welcome
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...
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.
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...
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.
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...
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.
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,...
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,...
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...
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...
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...
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...