In order to reach the nearest star Proxima Centauri within a century, a distance of 4.224 light-years from our solar system, the average spacecraft velocity needs to be 4.2% of the speed of light. Therefore, according to the rocket equation, the weighted average exhaust velocity needs to be over 1% of the speed of light for reasonable ratios of dry mass to fuel mass. The fusion reactor architecture presented herein consists of an electrostatic charged particle trap that brings two ion beams into collision with equal and opposite momentum. The two fusion channels under consideration for interstellar missions are p/Li7 and He3/He3, utilizing an array of low mass electrodes that minimize interactions with fusion daughters escaping from the collision point and focused to generate thrust. A prototype colliding beam accelerator has been built to determine the viability of achieving collider luminosities commensurate with the requirements of this application. A novel architecture overcomes past Coulomb scattering limitations. Reactor and propulsion system design parameters are presented in this paper along with preliminary prototype operational results with deuterium collisions.

BeamNetUS is a network of facilities united in a common mission to advance accelerator research and applications of accelerator technology through improving awareness and access to these unique facilities. For its pilot campaign, the network includes facilities at Argonne National Laboratory, Brookhaven National Laboratory, Fermi National Accelerator Laboratory, Lawrence Berkeley National Laboratory, SLAC National Accelerator Laboratory, and Thomas Jefferson National Accelerator Facility. These facilities provide complementary capabilities enabling research in plasma physics, beam physics, material science, radiofrequency sources and structures, nuclear physics and electron beam irradiation. In 2025, BeamNetUS awarded time at the facilities through a competitive review process with a remit towards creating new, productive engagements. User awards were given to universities, industry and other laboratories. At NAPAC25 in a satellite meeting, we reflect on the BeamNetUS experience in its pilot year and plans for the future.

Stangenes Industries is developing a novel klystron driver capable of peak modulator powers of 160MW and average powers of 320kW to drive a variety of high-powered electron-sources. The all-solid-state modulator consists of Marx-generators driving parallel primaries of a pulse transformer achieving output voltages of over 500kV. Over 3000 hours of internal lifetime testing on the primary pulsing components have proven the ruggedness of the design. Pulse flat-tops of 0.1%/us are achievable with real-time klystron feedback, coupled with an optimization algorithm that automatically adjusts pulse parameters. Pulse RMS stabilities of less than 100ppm are necessary in many applications and require careful tuning of the charging elements. For over 50 years Stangenes Industries has designed a built high quality electromagnetic components allowing for great advancements in science and industry. Stangenes is the logical choice for electron source drivers for pulsed electron guns, magnetrons, gyrotrons, and klystrons. All products manufactured by Stangenes Industries are made in the United States.

Superconducting radio-frequency (SRF) cavities are essential building blocks of modern particle accelerators for scientific research, and they offer unique capabilities that could be transformative for commercial applications. Growth of the domestic SRF industry in North America has faced several challenges over the past decades, as most of the international demand for cavities was supplied by European vendors. This contribution provides a brief review of the domestic industrial vendor space, an outlook of the global demand for SRF cavities and an outline of the challenges leading to this supply chain deficiency. One of the main challenges towards establishing a robust domestic SRF industry has been the large uncertainty in the demand. Meanwhile, research and development activities to raise technical readiness of SRF accelerators for industrial use have continued and several potential markets are emerging that may offer a consistent and growing demand for SRF cavities. Finally, reasons and means of establishing and sustaining competitive domestic suppliers are described.

Recent advances in drug development and radionuclide research have notably expanded the role of nuclear medicine in treating cancer over the past decade. Throughout such research and development efforts, the list of drug moieties and cancer types under investigation is paralleled by a similarly expansive list of radionuclides. This is because the suitability of a radionuclide for a therapeutic radiopharmaceutical application will depend on many factors including, but not limited to, the decay mode (e.g. α- vs β-emitter), the particle emission range, the matching of its half-life to the pharmacokinetics of the drug, and the co-emission of gamma rays of appropriate energy for imaging. Moreover, the successful adoption into clinical practice hinges on sustained, reliable, and cost-effective access to these radionuclides – a task which is not trivial. To this end, this presentation provides an overview of emerging trends in radionuclides (noting ²²⁵Ac, ²¹¹At, ¹⁷⁷Lu, and ⁶⁷Cu as examples), alongside novel initiatives for accelerator-based production strategies.

The intersection of accelerator and quantum information science (QIS) offers a unique platform to advance both fields through shared technology and infrastructure. This talk will discuss the synergies which exist between these two vastly different but complementary domains. We demonstrate how we leverage pre-existing infrastructure and knowledge to perform research and development which helps to realize dramatic improvements in both 10 km long accelerators and 10 cm large quantum processors. We will explore niobium superconducting radio-frequency (SRF) cavities, a mature technology that excels in efficiently storing electromagnetic energy, enabling ultra-long photon lifetimes critical for quantum processors and facilitating the characterization of quantum materials with parts-per-billion precision. We will also discuss how advancements in superconducting materials, cryogenic systems, and control techniques help to reduce cost and improve performance for both quantum systems and particle accelerators. Moreover, we will discuss cross-disciplinary applications such as dark-matter searches and demonstrate the convergence of these fields in addressing fundamental scientific questions.

Scanning magnets are used in proton and ion beam therapy to produce a radiation dose conforming to the cancerous tumor. In most existing beam delivery systems, two separate magnets are used to scan the beam in the transverse planes. To enable more compact systems and gantries, a combined function 2D scanner magnet with a short working distance is highly desirable. Earlier designs suffer from field non-uniformity in at least one plane. A compact 2D scanner magnet has been designed to produce high-field uniformity in both planes. The scanner was designed for carbon ions and could be easily scaled down for protons and other light ions. The design is based on saddle coils where the coils of the two magnets are interleaved to balance both field properties and power losses when scanning in both planes. The simulated field performance shows ~ 0.1% field uniformity in both planes within the useful aperture of the magnet . This represents a significant improvement over the prior art of the elephant-ear scanner design. Different design options and possible implementations will be presented.

The National Nuclear Security Administration (NNSA) funds the Illinois Accelerator Research Center (IARC) at Fermilab in developing a high-power, conduction-cooled Superconducting Radio Frequency (SRF) accelerator tailored for industrial applications requiring robust and efficient operation. A 650 MHz, 1.6 MeV, 20 kW SRF accelerator is currently under development, employing a conduction cooling approach to simplify cryogenic requirements and enhance accessibility for industrial use. The accelerator's control system is implemented on the Blinky-Lite platform, selected for its open-source architecture, secure remote access capabilities, and operational flexibility—attributes advantageous for industrial deployment and sustained operation. A dedicated beamline is designed to measure essential beam parameters and test the integrated performance of the accelerator and control systems, thereby validating their operational readiness for intended applications.

In order to reach the nearest star Proxima Centauri within a century, a distance of 4.224 light-years from our solar system, the average spacecraft velocity needs to be 4.2% of the speed of light. Therefore, according to the rocket equation, the weighted average exhaust velocity needs to be over 1% of the speed of light for reasonable ratios of dry mass to fuel mass. The fusion reactor architecture presented herein consists of an electrostatic charged particle trap that brings two ion beams into collision with equal and opposite momentum. The two fusion channels under consideration for interstellar missions are p/Li7 and He3/He3, utilizing an array of low mass electrodes that minimize interactions with fusion daughters escaping from the collision point and focused to generate thrust. A prototype colliding beam accelerator has been built to determine the viability of achieving collider luminosities commensurate with the requirements of this application. A novel architecture overcomes past Coulomb scattering limitations. Reactor and propulsion system design parameters are presented in this paper along with preliminary prototype operational results with deuterium collisions.

A fixed-beam, two room suite with upright chairs for patient positioning, is being installed at the McLaren Proton Therapy Center (MPTC). The MPTC is an operational, multi-room cancer treatment center. The new suite adds a third (A) and fourth (B) room by branching off upstream of the two clinically active half-gantry treatment rooms. This imposed a number of constraints on the beamlines of the new suite. The new beamline uses a Y-shaped selection dipole to switch between the suite’s room A and room B. The design was further constrained by the need to replicate the clinically active rooms’ beam characteristics at the new patient locations. This paper provides an overview of the methodology of the design studies for the new beamlines together with selected results. The work helped to establish the feasibility of installing a two-room treatment suite into a space originally designed for a gantry-based single treatment room.

BeamNetUS is a national network of accelerator facilities that aims to provide broader access to the unique capabilities of accelerated particle beams. Two facilities at Brookhaven National Laboratory are part of the inaugural year of BeamNetUS, the Accelerator Test Facility (ATF) and the Low Energy Accelerator Development (LEAD) facility, and are scheduled to each host one BeamNetUS user experiment. The ATF features an RF photocathode electron LINAC, a femtosecond Ti:Sa laser, and a high-peak-power long-wave infrared (LWIR) laser. These tools can be synchronized for joint use or operated individually, facilitating the development of advanced beam manipulation and measurement techniques, accelerator and laser technologies, and the exploration of low-plasma-density regimes. The LEAD facility provides an ultrafast electron diffraction (UED) apparatus, utilizing an RF electron gun and Ti:Sa laser to enable dynamic studies of material structures, as well as investigations involving low-energy electron beams. In addition to these two accelerator facilities, Brookhaven National Laboratory provides administrative support for the network. Further expansion is planned for 2026, including both increased user hours at ATF and LEAD as well as the potential inclusion of several other facilities at the lab.

One unique accelerator application is the testing of microelectronics for utilization in space. In particular, space provides two environment challenges that provide exposure to energetic heavy ions: galactic cosmic rays (GCRs) and solar particle events (SPEs). These particles cause risk by depositing charge in microelectronics potentially causing operational errors or even destructive failure. Testing electronics with a variety of ground-based accelerators is not new. What is new is the increasing need for high-energy (> 100 Mev/n) heavy ions with ~40% of all testing predicted to require this high energy by 2030. This is primarily for two reasons: - Mission-enabling advanced stacked microelectronics technologies such as 3D packaged devices that require higher energy to penetrate to the sensitive locations within these devices, and, - Increase in demand to perform system-level testing using “large irradiation area” kinematics. This large area also allows for large sample sizes to be irradiated simultaneously for efficiency. Presently, the is only one domestic accelerator that can achieve high energy heavy ions, that of Brookhaven National Laboratory’s NASA Space Radiation Laboratory. Here, we discuss the requirements needed by the test community and the domestic effort to close the gap in the number of test hours. A current government-funded study is underway to analyze options for the future.

Alkali metal - metalloid photocathodes with positive electron affinity, such as Cs3Sb, K2CsSb, and Cs2Te, exhibit excellent quantum efficiency and reasonable emittance and lifetime. However, even when grown closed-loop, traditionally quantum efficiency alone is the feedback mechanism. Many advancements in the last decade have studied growth *in situ*, including with x-ray diffraction in beamlines* and in molecular beam epitaxy with reflective high energy electron diffraction.** However, an inexpensive, easily standardized feedback method is also desirable as a means to control stoichiometry during both single- and polycrystalline growth in commercial production. Recently stoichiometric control of cathode growth via a quantum efficiency ratio method has resulted in reliable, repeatable growths.* * * We additionally report the implementation of an evolved high flux elemental cesium evaporator and our experience developing an industrial capacity for alkali metal - metalloid photocathode production. Cesium antimonide cathodes in co-deposition have consistent performance when utilizing carefully characterized fluxes in PID control loops and a slightly cesium-rich growth regime. We argue the automated paradigm for cesium antimonide paves the way for similarly simple yet robust industrial production of other alkali metal - metalloid photocathodes.

Fisica Applied Technologies, inc. (ATI) has designed and built e-beam sterilization systems, Flash-X-Ray systems, and many of the high pulsed power systems in the U.S. over the last 50 years. Our systems often use Sulfur hexafluoride (SF6 ) as an insulating gas. The global warming potential (GWP) of SF6 is approximately 23,500 times greater than carbon dioxide (CO2); because of this, there has been an increase in regulatory scrutiny and efforts to reduce SF6 emissions. Fisica has been successful in replacing SF6 with Dry Air (GWP <1) for many pulsed power applications and is investigating the use of other low-GWP gases. In this presentation, we will explore potential alternatives for transitioning our e-beam linac system from SF6 to environmentally sustainable, low-GWP gas alternatives.

The LANSCE Modernization Project (LAMP) aims at upgrading the front end of the LANSCE accelerator, involving one single radio-frequency quadrupole (RFQ) at 201.25 MHz for simultaneously accelerating both proton (H+) and negative hydrogen ion (H-) beams from 100 keV to 3 MeV. To meet the diverse set of beam requirements at various user stations, the RFQ must be capable of accelerating a continuous-wave beam as well as a pulsed input beam. For example, with H- beam production, the RFQ accelerates a continuous-wave-like beam for the Lujan Center, and a pulsed beam for the Weapons Neutron Research (WNR) facility. The WNR operational mode is the highlight of the LANSCE accelerator and of the LAMP upgrade. We introduce the design optimization of the RFQ for ensuring that all associated requirements of the LAMP key performance parameters are satisfied. The optimization of the overall configuration of the low energy beam transport (LEBT) beamline for shaping the phase spaces of the WNR beam pulse at the entrance to the RFQ is also addressed.

Fisica ATI has delivered turnkey e-beam linac sterilization systems for over three decades. The first installation was in 1992 under the Titan Beta. In 2000, SureBeam was established. Following its acquisition by L3 in 2005, the e-beam product line was consolidated under ATI. ATI continues to deliver high-reliability, fully integrated e-beam solutions for industrial and commercial applications as a division of Fisica. Our systems are engineered for continuous-duty (24/7), with >30 systems installed worldwide collectively logging >1million hours, with some systems in service for >20 years — demonstrating exceptional uptime and long-term durability. ATI provides comprehensive post-sales support, spare parts supply, and system upgrades. In 2024, we introduced a major enhancement: upgrading legacy 10 MeV 15/18 kW systems to 25 kW output—without altering the existing system footprint or significant changes to the major subsystems. This allows current customers to significantly boost throughput without the need for major facility modifications. The upgrade leverages the proven reliability of the existing e-beam sterilization subsystems.

The Low Energy Accelerator Development (LEAD) Facility * is a part of the Accelerators Facilities Division (AFD) of the Brookhaven National Laboratory (BNL). The facility has three capabilities and runs a program specifically targeting new collaborations for user-driven research. The first and the oldest of the capabilities is the Ultrafast Diffraction (UED) Capability. The other two are radiation-shielded bunkers. At the UED the deployment of a new stable solid-state modulator and klystron is in progress. The beamline updates are now going into place for a NASA Jet Propulsion Laboratory ** electron irradiator beamline for Single Event Effects (SEE) testing; and the capability for UED testing is being expanded. In both bunkers (153 and 77 sq. m) a range of cooling, air, electrical, and RF capabilities are presently being introduced. The first bunker will accommodate the Electron Cyclotron Resonance *** (eCRA) Demonstrator (a project together with Omega-P, R&D). The deployment is expected to start in the last quarter of 2025. The second bunker will accommodate the superconducting radiofrequency (SRF) photo-gun **** (a project by Euclid Techlabs, LLC) to be the electron beam source for an envisioned Ultrafast Electron Microscopy (UEM) Capability.

A unique opportunity exists to investigate alternative radionuclide production technologies utilizing the high-energy proton beams available at the Spallation Neutron Source (SNS) at Oak Ridge National Laboratory (ORNL). The Second Target Station (STS) is being built to address emerging science challenges in energy, security, and transportation. The STS will complement the capabilities of the First Target Station (FTS) and High Flux Isotope Reactor (HFIR) by filling gaps in materials research that require the combined use of intense, long-wavelength (cold) neutrons, and instruments that are optimized for exploration of complex materials. The construction of the STS beamline to the target also presents an opportunity to capitalize on additional applications, such as the production of high-demand radioisotopes for medical applications. Work began in 2024 to investigate the possibility of Radioisotope Production at SNS (RIPS) through four main goals: (1) identification of isotopes of interest through the modeling and simulation of prospective irradiation parameters and target compositions, (2) development of a target design concept that can receive high energy beam pulses from the SNS accelerator, (3) identification of enhanced isotope separation methods for SNS produced radionuclides, and (4) a design concept for an experimental/demonstration facility. An overview of the project and progress towards achieving these goals will be presented.

Completion of the Proton Power Upgrade Project for the Spallation Neutron Source (SNS) accelerator at Oak Ridge National Laboratory opens an opportunity to utilize reserve beam power of more than 100 kW for applications beyond neutron production. One of these applications is the production of critical radionuclides. To demonstrate the feasibility of using the reserve beam power to produce radioisotope at SNS, a design concept of a small-scale experimental target station in the Linac Dump area has been developed. This experimental facility will provide isotope yield benchmarking data using protons in the GeV range. It will also enable additional research and development in isotope handling and radiochemical separation. The target station consists of a target module enclosed in a vessel and concrete shielding. Particle transport calculations and thermo-mechanical simulations are used to determine beam parameters, decay time, isotope yield, shielding dimensions, and target design parameters. Calculations verified that the irradiated capsule can be handled manually using hands-off tools and transported to a hot cell in a shielded container for post-irradiation characterizations.

Upon completion of the Second Target Station (STS) Project in the mid 2030s, the Spallation Neutron Source accelerator at Oak Ridge National Laboratory will deliver a 2.7 MW proton beam to the neutron production targets. In the post-STS phase, the accelerator will have a reserve beam power capacity of at least 100 kW beyond what the two neutron production targets will receive, which could potentially be ramped up to 300 kW. In this paper, a design concept for a radioisotope production target that could utilize 250 kW of the reserve beam power capacity is presented. The target consists of thorium discs encapsulated in 316L austenitic steel shells that are cooled by water. The estimated post-irradiation activity of Ac-225 and Ra-225, critical medical radioisotopes used in targeted alpha therapy cancer treatment, is calculated at the end of bombardment after a 14 day long irradiation time. Thermal and structural analyses are performed on the basis of calculated nuclear heating data. The technical feasibility of a high-power target under a 250-kW beam load with an extremely low duty factor of $3.5\cdot 10^{-6}$ is presented from thermal, structural and fatigue lifetime perspectives.

The research program at the NLCTA Test Facility at SLAC National Accelerator Laboratory includes experiments spanning a broad range of applications, from accelerator technology for HEP to applications in medicine, industry, and national security. The test areas utilize the infrastructure of the original Next Linear Collider Test Accelerator (NLCTA) including high power RF sources at X-band (11.424 GHz) and S-band (2.856 GHz) and a radiation shielded vault designed for a 1 GeV electron beam. The X-band Test Accelerator (XTA) delivers electron beam at energies from 30-70 MeV and up to 100 pC. NLCTA is participating in the new BeamNetUS network of test facilities. NLCTA facility capabilities include cryogenic testing down to 4 K with high power RF, electron beam and laser at 800 nm on XTA, and a planned test area for high magnetic fields.

Superconducting radio-frequency accelerating cavities made with different material layers, such as copper, Nb or Nb₃Sn, are susceptible to thermoelectric effects due to differences in Seebeck coefficients between the metals. A temperature gradient across the surfaces can drive thermoelectric currents, which may impact the cavity performance. A layered Cu/Nb/Nb3Sn single-cell cavity was tested with cryocoolers in 2022. Three heaters were mounted on the cavity surface at different locations and three single-axis cryogenic fluxgate magnetometers were attached close to the cavity equator. A linear increase in the magnetic field was measured while increasing the heaters' power. The cavity setup was analyzed with COMSOL and the results showed a trend similar to that observed in the experiment. This contribution details the approach chosen for the simulation and some of the challenges encountered.

Spin-transparent storage rings, where any spin direction repeats after one full turn, can be used in conjunction with ion traps as a new quantum computing platform [1]. Advantages of spin-transparent rings for quantum computing include: large numbers of stored qubits; long quantum coherence times of up to several hours; long storage lifetimes; and room temperature operation. These exceptional qualities mean rings could provide a scalable way to implement algorithms with deep complexity requiring many quantum operations while simultaneously providing a large number of qubits. This new platform where the qubit has long quantum coherence time can also be used as a quantum sensor or a part of a quantum memory.

The High Energy Systems (HES) group at Varex Imaging Corporation (Varex) introduced a new concept and design for Accelerator Beam Centerline (ABC) (patent pending), which can be used on compact commercial electron linear accelerators in 1-20 MeV energy range, delivering substantially reduced, less than 0.5 mm focal spot on a beam stopping target in order to improve imaging qualities with the produced Bremsstrahlung. The first 6 MeV prototype tests have been completed successfully, and the work continues to build and test a 3 MeV and 9 MeV ABC prototypes. These linac systems received a brand name MicroBeam Linatron (MBL) series. The design and experimental data obtained up to date are presented.

The proton radiography facility at LANL (pRad) performs multi-frame, dynamic radiography of dense materials up to 50 g cm$^{-2}$ with interframe timing down to 100 ns. The multiple Coulomb scattering of protons and the use of magnet optics allows for precise areal densities, and in experiments with radial symmetry, volume density reconstructions. The temporal structure of the Los Alamos Neutron Science Center (LANSCE) 800-MeV proton beam allows flexibility for multi-frame imaging over the duration of dynamic processes lasting up to 20 µs or more. The LANL pRad facility routinely provides valuable data characterizing high explosive detonation and materials under strain. However, it is limited by chromatic effects that effectively limited the ultimate thickness and dynamic range of an experiment, making thin materials and subtle changes hard to visualize. Work currently underway aims to eliminate or mitigate these issues. This talk aims to familiarize the community with pRad’s current capabilities and the work going on to improve our radiography and expand the range of possible experiments with futureupgrades to the pRad beamline and LANSCE.

The Accelerator Test Facility (ATF) at BNL is the DOE Office of Science User Facility for Accelerator Stewardship, featuring a high-brightness, 80-MeV electron LINAC, near-infrared (NIR) lasers at 1.06 and 0.8 µm, and a 5-TW, 2-ps long-wave infrared (LWIR) 9.2-µm laser. ATF is advancing LWIR laser technology toward the multi-terawatt, femtosecond regime—a major milestone in this spectral domain. Its unique suite of synchronized or independently operated capabilities enables breakthroughs across a broad range of studies, from materials science to Homeland Security, and from advanced radiation sources to novel methods of particle acceleration. Research priorities are shaped by community input through ATF User Meetings and Science Planning Workshops. A key focus is leveraging the co-location of the LINAC and “multi-color” lasers to place ATF at the forefront of THz to hard x-ray radiation sources, plasma physics, and advanced accelerator R&D. In this approach, the LWIR laser drives plasma dynamics, while the LINAC and NIR lasers enable ultrafast probing of plasma fields and density, or controlled electron injection into plasma wakes. These efforts support global research into plasma instabilities relevant to astrophysics and inertial confinement fusion, as well as the development of future colliders and compact accelerators with potential industrial applications. Recent ATF user results highlight these advances.

Recent SLAC research on novel design techniques for normal conducting accelerators has produced multiple new approaches to increase the gradient as well as the efficiency of these structures. Distributed coupling linacs, in which individual cells are fed through parallel power distribution manifolds, have enabled new flexibility in the optimization of the cell geometry to increase the accelerating gradient while constraining the local surface field enhancement to reduce susceptibility to breakdown. This innovation takes advantage of state-of-the-art high-power computing to fully model the linac, RF distribution network, and beam dynamics using tools like SLAC’s ACE3P modeling suite. Cold copper structures are another key example of the advances at SLAC where cryogenic operation has been shown to increase the shunt impedance and reduce the breakdown rate. SLAC is actively developing these techniques and pursuing new approaches, like driving structures with very short RF pulses. Design and simulation efforts are complimented by high power testing capabilities at the NLCTA Test Facility. SLAC is investigating applying these high gradient design advances to a wide array of accelerator applications spanning discovery science, medicine, and national security.

X-ray generators, producing radiation in the MeV range, are a critical tool for radiography, non-destructive testing, and security applications. The field operation of such source requires them to be hand-portable, autonomous, and allow parameter adjustability. The dramatic level of miniaturization and cost-reduction of electron linac is achieved thanks to the implementation of such innovative technologies as air-cooled Ku-band air-traffic control magnetrons, split accelerating structure fabrication technique, and solid-state Marx modulators. In this talk, we present the design and test results of a 2 MeV Ku-band electron linac for a hand-portable X-ray generator system for field radiography, being developed by RadiaBeam.

The resolution of a MeV Scanning Transmission Electron Microscope (MeV-STEM) is mainly limited by the electron beam properties and angular broadening in thick biological samples and microchips. Addressing these challenges requires understanding beam emittance, optical aberrations, and energy-dependent scattering angles. We propose a standardized method to assess beam intensity, divergence, and size at the sample exit to better characterize electron-sample interactions, align analytical models, and validate Monte Carlo simulations. Our results show that accurately measuring parameters—especially angular broadening—is both feasible and essential for improving resolution. Using a high-energy (1–10 MeV) electron source and tailored beams, along with amorphous ice and silicon as sample proxies, we aim to optimize beam energy and focus for enhanced imaging. This is critical for in-situ imaging of thick biological samples and detecting nanometer-scale microchip defects. Ultimately, we aim to map the minimum electron energy needed for nanoscale resolution across varying sample types and imaging modes.

In this talk, Euclid Techlabs, in collaboration with Jefferson Lab, Helmholtz-Zentrum Berlin (HZB), and CERN, will present recent advancements in ferroelectric material-based fast tuning systems for SRF cavities. Currently, the most common approach to managing fast cavity frequency shifts is to over-couple the fundamental RF power, which results in significant power waste. Recent developments in ultra-low-loss ferroelectric materials have made ferroelectric-based tuning technology for SRF cavities a viable alternative. The Horizon Europe iSAS project* focuses on improving accelerator efficiency and includes the integration of a ferroelectric fast reactive tuner (FE-FRT) to enhance energy conservation. Applications under this initiative include an FE-FRT for 400 MHz transient beam loading compensation in the LHC, FE-FRT systems for microphonics compensation in 1.3 GHz SRF cavities, FE-FRTs for energy recovery linac (ERL) applications, and retrofitting FE-FRTs into existing HL-LHC cryomodules**. In the U.S., FE-FRT technology is under active development for microphonics compensation in CEBAF and as a potential upgrade path for the Electron-Ion Collider (EIC), where it may serve as a dedicated hardware solution for active microphonics control in crab cavities.