A5083070072- Particle accelerators and beam dynamics
- Particle Accelerators and Free-Electron Lasers
- Gyrotron and Vacuum Electronics Research
- Superconducting Materials and Applications
- Particle Detector Development and Performance
- Radiation Therapy and Dosimetry
- Energy Harvesting in Wireless Networks
- Plasma Diagnostics and Applications
- Radio Frequency Integrated Circuit Design
- Nuclear Physics and Applications
- Digital and Cyber Forensics
- Particle physics theoretical and experimental studies
- Microwave Engineering and Waveguides
- Antenna Design and Analysis
- Security and Verification in Computing
- Medical Imaging Techniques and Applications
- Engineering Applied Research
- Advancements in PLL and VCO Technologies
- Advancements in Semiconductor Devices and Circuit Design
- Radiomics and Machine Learning in Medical Imaging
- Electromagnetic Compatibility and Measurements
- Advanced Antenna and Metasurface Technologies
- Photonic and Optical Devices
European Organization for Nuclear Research
2007-2022
Instituto de Física Corpuscular
2020
A prototype 11.994 GHz, traveling-wave accelerating structure for the Compact Linear Collider has been built, using novel technique of assembling from milled halves. The use halves many advantages when compared to a made individual disks. These include potential reduction in cost, because there are fewer parts, as well greater freedom choice joining technology no rf currents across halves' joint. Here we present design and fabrication structure, followed by results high-power test post-test...
The CLIC study has progressively tested prototype accelerating structures which incorporate an ever increasing number of features are needed for a final version ready to be installed in linear collider. most recent high power test made the CERN X-band stand, Xbox-1, is CERN-built includes damping but also compact input and output couplers, maximize overall length active gradient ratio structure. structure’s high-gradient performance, 105 MV/m at 250 ns pulse low breakdown rate, matches...
TERA Foundation has proposed and designed hadrontherapy facilities based on novel linacs, i.e. high gradient linacs which accelerate either protons or light ions. The overall length of the linac, therefore its cost, is almost inversely proportional to average accelerating gradient. With scope studying limiting factors for operation optimize linac design, TERA, in collaboration with CLIC Structure Development Group, conducted a series experiments. main goals were study behavior evaluate...
A novel high-gradient accelerating structure with low phase velocity, $v/c=0.38$, has been designed, manufactured and high-power tested. The was designed built using the methodology technology developed for CLIC $100\text{ }\text{ }\mathrm{MV}/\mathrm{m}$ structures, which have speed of light but adapts them to a nonrelativistic particles. parameters were optimized compact proton therapy linac project, specifically 76 MeV energy protons, type opens more generally possibility velocity linacs....
The potential for a superconducting proton linac (SPL) at CERN started to be seriously considered the end of 1990s. In first conceptual design report (CDR), published in 2000 [1], most 352 MHz RF equipment from LEP was re-used an 800 m long linac, and beam energy limited 2.2 GeV. During following years, revisited optimized better match needs high-power driver neutrino physics. result more compact (470 long) accelerator capable delivering 5 MW power 3.5 GeV, using state-of-the-art cavities...
Dielectric-loaded accelerating (DLA) structures are being studied as an alternative to conventional disk-loaded copper produce the high gradient. This paper presents design, fabrication and low-power RF measurement of externally-powered X-band DLA structure with a dielectric constant epsilon_r=16.66 loss tangent tan_delta=0.0000343. A matching section for coupling power from circular waveguide consists very compact disk width 2.035 mm tilt angle 60 degree, resulting in broadband at low field...
Linac4 is a normal conducting 160 MeV Hlinear accelerator presently being installed and progressively commissioned at CERN. It will replace the ageing 50 Linac2 as injector of PS Booster (PSB), increasing same time its brightness by factor two thanks to higher injection energy. This be first step program increase beam in LHC injectors for needs High-Luminosity project. After series measurements on dedicated test stand 3 front-end, including ion source, RFQ chopping line, has been...
This article presents the design, construction, and high-power test of two <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$X$ </tex-math></inline-formula> -band radio frequency (RF) accelerating structures built as part a collaboration between CERN Paul Scherrer Institute (PSI) for compact linear collider (CLIC) study. The are modified "tuning-free" variant an existing design were assembled using Swiss...
Linac4 is proposed to replace the existing proton linac at CERN (Linac2). Using an increased injection energy of 160 MeV instead 50 MeV, expected double beam intensity in PS Booster (PSB) and will thus be first step towards higher brightness beams LHC. In this paper we re-assess choice RF structures for Linac4. Different accelerating different ranges are compared terms efficiency, ease construction alignment, necessary infrastructure. Eventually present final
CERN’s Compact linear collider (CLIC) will require crab cavities to align the bunches provide effective head-on collisions. An X-band quasi-TM11 deflecting cavity has been designed and manufactured for testing at Xbox-2 high power standalone test stand. The is currently under reached an input level in excess of 40MW, with a measured breakdown rate better than 10-5 breakdowns per pulse. This paper also describes surface field quantities which are important assessing expected BDR when...
Compact, reliable and little consuming accelerators are required for the treatment of tumours with ions. TERA proposes "cyclinac", composed a high-frequency, fast-cycling linac which boosts energy particles previously accelerated in cyclotron. The dimensions can be reduced if high gradients used. initiated high-gradient test program to understand operational limit such structures. foresees design, prototyping high-power several structures operating at 3 5.7 GHz. tests GHz single-cell cavity...