J. Scott Berg
A5014135119- Particle accelerators and beam dynamics
- Particle Accelerators and Free-Electron Lasers
- Superconducting Materials and Applications
- Muon and positron interactions and applications
- Neutrino Physics Research
- Particle Detector Development and Performance
- Astrophysics and Cosmic Phenomena
- Gyrotron and Vacuum Electronics Research
- Particle physics theoretical and experimental studies
- Magnetic confinement fusion research
- Advancements in Photolithography Techniques
- Silicon Carbide Semiconductor Technologies
- Electron and X-Ray Spectroscopy Techniques
- Photocathodes and Microchannel Plates
- Scientific Research and Discoveries
- Numerical methods for differential equations
- Distributed and Parallel Computing Systems
- High-Energy Particle Collisions Research
- Nuclear Physics and Applications
- Plasma Diagnostics and Applications
- Laser-Plasma Interactions and Diagnostics
- Dark Matter and Cosmic Phenomena
- Mechanical and Optical Resonators
- Spacecraft and Cryogenic Technologies
- Physics of Superconductivity and Magnetism
Brookhaven National Laboratory
2015-2025
Brookhaven College
2003-2024
RIKEN BNL Research Center
2000-2024
Dallas Christian College
2022-2023
SLAC National Accelerator Laboratory
1994-2022
Menlo School
2022
Cornell University
1992-2021
Thomas Jefferson National Accelerator Facility
2021
Rutherford Appleton Laboratory
2013
Office of Science
2011
The Circular Electron Positron Collider (CEPC) is a large international scientific facility proposed by the Chinese particle physics community to explore Higgs boson and provide critical tests of underlying fundamental principles Standard Model that might reveal new physics. CEPC, be hosted in China circular underground tunnel approximately 100 km circumference, designed operate as factory producing electron-positron collisions with center-of-mass energy 240 GeV. collider will also at around...
Abstract A multi-TeV muon collider offers a spectacular opportunity in the direct exploration of energy frontier. Offering combination unprecedented collisions comparatively clean leptonic environment, high has unique potential to provide both precision measurements and highest reach one machine that cannot be paralleled by any currently available technology. The topic generated lot excitement Snowmass meetings continues attract large number supporters, including many from early career...
The status of the research on muon colliders is discussed and plans are outlined for future theoretical experimental studies. Besides continued work parameters a 3-4 0.5 TeV center-of-mass (CoM) energy collider, many studies now concentrating machine near 0.1 that could be factory s-channel production Higgs particles. We discuss various components in such colliders, starting from proton accelerator needed to generate pions heavy-Z target proceeding through phase rotation decay ($\pi \to \mu...
We describe the status of our effort to realize a first neutrino factory and progress made in understanding problems associated with collection cooling muons towards that end. summarize physics can be done factories as well intense cold beams muons. The potential muon colliders is reviewed, both Higgs Factories compact high energy lepton colliders. timescale research development reviewed latest designs channels including promise ring coolers achieving longitudinal transverse simultaneously....
There have been active efforts in the U.S., Europe, and Japan on design of a Neutrino Factory. This type facility produces intense beams neutrinos from decay muons high energy storage ring. In second detailed Feasibility Study (FS2) for Factory was completed 2001. Since that report published, new ideas bunching, cooling acceleration muon developed. We incorporated these into design, which we designate as 2B (ST2B), should lead to significant cost savings over FS2 design.
This document summarizes the work of Accelerator Working Group (AWG) International Scoping Study (ISS) a Future Neutrino Factory and Superbeam Facility. The main goal activity was to reach consensus on baseline design for complex, including proton driver parameters, choice target, front-end design, acceleration system decay ring geometry. Another explore commonality, if any, between those or Beta Beam facility. In general, requirements either latter facilities are less stringent than...
Following the discovery of Higgs boson at LHC, new large colliders are being studied by international high-energy community to explore physics in detail and beyond Standard Model. In China, a two-stage circular collider project CEPC-SPPC is proposed, with first stage CEPC (Circular Electron Positron Collier, so-called factory) focused on physics, second SPPC (Super Proton-Proton Collider) This paper discusses this stage.
Energy recovery has been achieved in a multipass linear accelerator, demonstrating technology for more compact particle accelerators operating at higher currents and reduced energy consumption. delivered to the beam during first four passes through accelerating structure was recovered subsequent decelerating passes. High-energy efficiency by use of superconducting cavities permanent magnets. The fixed-field alternating-gradient optical system used return loop successfully transported...
We describe the magnet challenges for a Muon Collider, an exciting option considered future of particle physics at energy frontier. Starting from comprehensive work performed by US Accelerator Program, we have reviewed performance specifications dictated beam and operating conditions to satisfy accelerator needs. Among many magnets that make up muon collider, identified four systems represent well envelope challenges: target capture solenoid, final cooling dipoles collider dipoles. These...
Practical ionization cooling rings could lead to lower cost or improved performance in neutrino factory muon collider designs. The ring modeled here uses realistic three-dimensional fields. of the compares favorably with linear channel used second U.S. Neutrino Factory Study. normalized 6D emittance an ideal is decreased by a factor approximately 240, compared only 15 for channel. We also examine such real-world effects as windows on absorbers and rf cavities leaving empty lattice cells...
A high-luminosity muon collider requires a significant reduction of the six-dimensional emittance prior to acceleration. Obtaining desired final emittances transporting beam through long sections channel containing rf cavities, absorbers, and focusing solenoids. Here we propose new scheme improve performance channel, consequently increasing number transmitted muons lattice cooling efficiency. The key idea our is tune progressively main parameters, such as cell dimensions, frequency, coil...
A complete scheme for production and cooling a muon beam three specified colliders is presented. Parameters these are given. The starts with the front end of proposed neutrino factory that yields bunch trains both signs. Emittance exchange in slow helical lattices reduces longitudinal emittance until it becomes possible to merge into single bunches, one each sign. Further all dimensions applied bunches further lattices. Final transverse required parameters achieved 50 T solenoids using high...
A complete scheme for production and cooling a muon beam three specified colliders is presented. Parameters these are given. The starts with the front end of proposed neutrino factory that yields bunch trains both signs. Emittance exchange in slow helical lattices reduces longitudinal emittance until it becomes possible to merge into single bunches, one each sign. Further all dimensions applied bunches further lattices. Final transverse required parameters achieved 50 T solenoids using high...
This design report describes the construction plans for world's first multi-pass SRF ERL. It is a 4-pass recirculating linac that recovers beam's energy by 4 additional, decelerating passes. All beams are returned deceleration in single beam pipe with large-momentum-aperture permanent magnet FFAG optics. Cornell University has been pioneering new class of accelerators, Energy Recovery Linacs (ERLs), characteristic set parameters. Technology prototyped essential any high brightness electron...
In a muon accelerator complex, target is bombarded by multi-MW proton beam to produce pions, which decay into the muons are thereafter bunched, cooled, and accelerated. The front end of complex captures those then manipulates their phase space, that they decay, maximize number within acceptance downstream systems. secondary pion produced at captured high field solenoid tapers down constant throughout rest end. this study we enhance useful flux introducing new design longitudinal profile at,...