A5044440159- Particle Accelerators and Free-Electron Lasers
- Particle accelerators and beam dynamics
- Superconducting Materials and Applications
- Gyrotron and Vacuum Electronics Research
- Particle Detector Development and Performance
- Photocathodes and Microchannel Plates
- Magnetic confinement fusion research
- High-Energy Particle Collisions Research
- Particle physics theoretical and experimental studies
- Laser Design and Applications
- Plasma Diagnostics and Applications
- Electron and X-Ray Spectroscopy Techniques
- Laser-Plasma Interactions and Diagnostics
- Advanced X-ray Imaging Techniques
- Nuclear Physics and Applications
- Advanced Data Storage Technologies
- Quantum Chromodynamics and Particle Interactions
- Physics of Superconductivity and Magnetism
- X-ray Spectroscopy and Fluorescence Analysis
- Silicon and Solar Cell Technologies
- Radiation Detection and Scintillator Technologies
- Induction Heating and Inverter Technology
- Advancements in Photolithography Techniques
- Atomic and Subatomic Physics Research
- Atomic and Molecular Physics
Brookhaven National Laboratory
2015-2024
Brookhaven College
2023
Stony Brook University
2007-2022
RIKEN BNL Research Center
2005-2011
Rock Point Community School
2011
Tech-X Corporation (United States)
2009
National Library of Luxembourg
2007
Budker Institute of Nuclear Physics
1996-2006
Siberian Branch of the Russian Academy of Sciences
2004
The physics programme and the design are described of a new collider for particle nuclear physics, Large Hadron Electron Collider (LHeC), in which newly built electron beam 60 GeV, up to possibly 140 energy collides with intense hadron beams LHC. Compared HERA, kinematic range covered is extended by factor twenty negative four-momentum squared, $Q^2$, inverse Bjorken $x$, while luminosity $10^{33}$ cm$^{-2}$s$^{-1}$ LHeC projected exceed integrated HERA two orders magnitude. devoted an...
This report is based on a ten-week program Gluons and the quark sea at high-energies, which took place Institute for Nuclear Theory (INT) in Seattle Fall 2010. The principal aim of was to develop sharpen science case an Electron-Ion Collider (EIC), facility that will be able collide electrons positrons with polarized protons light heavy nuclei high energies, offering unprecedented possibilities in-depth studies quantum chromodynamics (QCD). organized around following four major themes: (i)...
This document presents BNL's plan for an electron-ion collider, eRHIC, a major new research tool that builds on the existing RHIC facility to advance long-term vision Nuclear Physics discover and understand emergent phenomena of Quantum Chromodynamics (QCD), fundamental theory strong interaction binds atomic nucleus. We describe scientific requirements such facility, following up community-wide 2012 white paper, 'Electron-Ion Collider: Next QCD Frontier', present design concept incorporates...
Continuous-wave photoinjectors operating at high accelerating gradients promise to revolutionize many areas of science and applications. They can establish the basis for a new generation monochromatic x-ray free electron lasers, high-brightness hadron beams, or microchip production. In this Letter we report on record-performing superconducting rf gun with ${\mathrm{CsK}}_{2}\mathrm{Sb}$ photocathode. The is generating charge bunches (up $10\text{ }\text{ }\mathrm{nC}/\text{bunch}$) low...
Cooling of beams gold ions using electron bunches accelerated with radio-frequency systems was recently experimentally demonstrated in the Relativistic Heavy Ion Collider at Brookhaven National Laboratory. Such an approach is new and opens possibility this technique higher energies than possible electrostatic acceleration beams. The challenges include generation suitable for cooling, delivery required quality to cooling sections without degradation beam angular divergence energy spread,...
A half-cell superconducting rf electron gun is designed to provide 0.5 A, 2 MeV beam for the Brookhaven National Laboratory R Energy Recovery Linac. Total power of 1 MW must be delivered meet current and energy specifications, resulting in very strong coupling. Two opposing fundamental couplers (FPCs) are employed minimize transverse kick traversing structure halve through coupler. single-window coaxial coupler has been average coupling requirements. The features a planar beryllia window...
We describe the first direct observation of significant suppression energy spread induced by coherent synchrotron radiation a pair conductive plates placed inside dipole magnet. In addition to various feedback loops improving stability beam parameters, our key innovation for this experiment is time-resolved variation within electron bunch, instead traditionally measured rms spread. present results experiments and compare them with rigorous analytical theory.
The Low Energy RHIC electron Cooling (LEReC) project at Brookhaven National Laboratory recently demonstrated for the first time cooling of hadron bunches with radio-frequency (rf) accelerated bunches. LEReC uses a high-voltage photoemission gun stringent requirements beam current, quality, and stability. has photocathode high-power fiber laser, novel cathode production, transport, exchange system. It been that can continually produce high-current quality suitable cooling. We describe...
A high-current high-brightness electron accelerator for low-energy RHIC cooling (LEReC) was successfully commissioned at Brookhaven National Laboratory. The LEReC includes a dc photoemission gun, laser system, photocathode delivery magnets, beam diagnostics, superconducting rf booster cavity, and set of normal conducting cavities to provide enough flexibility tune the in longitudinal phase space. Cooling with nonmagnetized accelerated beams requires corrections obtain small momentum spread...
We expand upon the idea of using gamma-rays for nuclear photoflssion <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">238</sup> U at giant dipole resonance to generate rare neutron-reach nuclei. The SPIRAL II project proposes employment 10-20-MeV Bremsstrahlung generated by a 45-MeV electron beam /http://ganinfo.in2p3.fr/research/ developments/ spiral2/ index.html/. In this paper, we explore possibility Compton gamma-ray source such process....
The Low Energy Relativistic Heavy Ion Collider (RHIC) Electron Cooler (LEReC) is the world's first electron cooler using rf-accelerated bunches. Recently, cooling of gold ion beams in RHIC by 1.6 and 2.0 MeV electrons was successfully achieved. Along with velocity spread alignment beam, space-charge force between ions also plays an important role process. In order to investigate dynamics bunched provide guidance for LEReC operation, a simulation code developed, which includes nonmagnetized...
We report progress on the R&D program for electron-cooling of Relativistic Heavy Ion Collider (RHIC). This electron cooler is designed to cool 100 GeV/nucleon at storage energy using 54 MeV electrons. The source will be a superconducting RF photocathode gun. accelerator recovery linac. frequency set 703.75 MHz. maximum bunch 9.38 MHz, with charge 20 nC. has following components: photoinjector and its photocathode, linac cavity, start-to-end beam dynamics magnetized electrons, cooling...
Next generation light-sources, electron coolers, high-power FELs, Compton X-ray sources and many other accelerators were made possible by the emerging technology of high-power, high-brightness beams. In order to get anticipated performance level ampere-class currents, technological barriers are yet be broken. BNL's Collider-Accelerator Department is pursuing some these technologies for its cooling RHIC application, as well a future electron-hadron collider. We will describe work on CW,...
We present the design and parameters of an energy recovery linac (ERL) facility, which is under construction in Collider-Accelerator Department at BNL. This R&D facility has goal demonstrating CW operation ERL with average beam current range 0.1 - 1 ampere very high efficiency recovery. The possibility a future upgrade to two-pass also being considered. heart 5-cell 703.75 MHz super-conducting RF strong Higher Order Mode (HOM) damping. flexible lattice provides test-bed for exploring issues...