RF pulse modulation techniques are widely applied to shape RF pulses for various types of RF stations of particle accelerators. The amplitude and phase modulations are typically implemented with additional RF components that require drive or control electronics. For the RF system-on-chip (RFSoC) based generation LLRF (NG-LLRF) platform we developed in the last several years, the RF modulations...
An update on the design and build progress for the QCM, which comprises a liquid nitrogen cryovessel housing a copper accelerating structure and its requisite supports and alignment monitoring systems. Design progress, build progress, and initial test results will be shared.
For $C^3$, some 3000 accelerator sub units must be positioned, within 10 um transversal, on a 6 km long straight line. In the Rasnik alignment system, light from a point-like monochromatic source falls on a zone plate, forming a Fraunhofer diffraction pattern on an image pixel sensor. The alignment of three objects can be obtained by analysing the position of the diffraction pattern on the...
The design of the CLIC main beam injector complex linacs necessitates high-gradient, traveling-wave accelerating structures engineered to withstand substantial beam-loading effects due to the elevated beam current and demanding acceleration requirements of CLIC operations. In this work, we present a comprehensive design and optimization study of 2 GHz traveling-wave structures tailored to...
For the last decade, the CLIC collaboration has developed and high-power tested a wide range of X-band accelerating structures. To meet the CLIC luminosity budget, these structures must satisfy stringent requirements, operating above 70 MV/m while maintaining ultra-low breakdown rates.
We present a review of the test results, describing the conditioning strategies, test stand configurations,...
The ESRF mid-term plan for the upgrade of the injection complex foresees a full energy linac option. Given the space limitations of the site, compactness is a strong design constraint and high gradient technology is a potential candidate to fulfill this goal. Beam dynamics simulations have been performed for several different accelerating structures in the S-, C- and X-band frequencies to...
We introduce the Azimuthal Modulation Method (AMM), a technique for precisely sculpting the electromagnetic fields in RF cavities to enable multipole-free acceleration or bespoke transverse kicking. The AMM provides fine control over multipolar field components, allowing suppression of unwanted multipoles (such as those arising from ancillary elements like single-slot power couplers) or the...
Electron linear accelerators are compact and energy-efficient drivers for moderate neutron production, making them attractive for research, medical, and industrial applications. We present a preliminary beam-dynamics design of an X-band accelerator capable of delivering an electron beam with a mean final energy of 509 MeV. The design prioritizes stable, high-intensity operation, achieving an...
This talk will report on the status of commissioning of the Cathodes And Radio-frequency Interactions in Extremes (CARIE) high gradient C-band RF photoinjector test stand at Los Alamos National Laboratory. We are assembling and testing the high gradient photoinjector capable of producing electric fields at the cathodes up to 250 MV/m. The photoinjector is powered by a 50 MW, 5.712 GHz Canon...
