A5003415452- Superconducting Materials and Applications
- Particle accelerators and beam dynamics
- Particle Accelerators and Free-Electron Lasers
- Physics of Superconductivity and Magnetism
- Magnetic confinement fusion research
- Spacecraft and Cryogenic Technologies
- Electric Motor Design and Analysis
- Superconductivity in MgB2 and Alloys
- Photocathodes and Microchannel Plates
- Muon and positron interactions and applications
- Neutrino Physics Research
- Magnetic Properties and Applications
- HVDC Systems and Fault Protection
- Astrophysics and Cosmic Phenomena
- Electromagnetic Launch and Propulsion Technology
- Electron and X-Ray Spectroscopy Techniques
- Particle physics theoretical and experimental studies
- Particle Detector Development and Performance
- Magnetic Properties of Alloys
- Retinoids in leukemia and cellular processes
- Frequency Control in Power Systems
- Vacuum and Plasma Arcs
- Computational Drug Discovery Methods
- Plasma Diagnostics and Applications
- Radiation Therapy and Dosimetry
Brookhaven National Laboratory
2016-2025
RIKEN BNL Research Center
2002-2024
Brookhaven College
1994-2023
Murray State University
2005-2020
Supercon (United States)
2011-2014
Lawrence Berkeley National Laboratory
1999-2004
Associated Universities, Inc.
2002
TRIUMF
1985
The High Luminosity LHC (HL-LHC) project aims at accumulating 3000 <formula formulatype="inline" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex Notation="TeX">${\rm fb}^{-1}$</tex></formula> in the years 2023–2035, i.e., ten times more w.r.t. nominal performance expected for 2010–2021. One key element to reach this challenging is a new insertion region reduce beam size interaction point by approximately factor two. This requires larger aperture...
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....
In 2004, the US DOE established LHC Accelerator Research Program (LARP) with goal of developing a technology base for future upgrades LHC. The focus magnet program, which is collaboration three laboratories, BNL, FNAL and LBNL, on development high gradient quadrupoles using <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$ Nb_3 Sn$</tex> superconductor. Other program components address issues regarding design, radiation-hard materials, long...
This paper presents the design, construction, and test results of a high-energy-density coil for superconducting magnetic energy storage system (SMES). The was designed to reach 25 T at 4 K in 100-mm bore under program funded by ARPA-E. used over 6 km 12-mm-wide second-generation high-temperature superconductors (HTS) provided SuperPower. Such high fields large aperture built with new still-developing conductor magnet technology created several challenges, which included stresses quench...
In the context of high-energy physics, use Nb3Sn superconducting magnets as a cost-effective and reliable technology depends on improvements in following areas: long development manufacturing cycles, conductor degradation after thermal cycling, training, well demonstration accelerator with beam aperture full potential modern conductors. short, performance, robustness, cost are three issues to be addressed. The Magnet Development project (MagDev) Swiss Accelerator Research Technology...
Abstract A low-AC loss Rare-earth barium copper oxide (REBCO) cable, based on the VIPER cable technology has been developed by commonwealth fusion systems for use in high-field, compact tokamaks. The new is composed of partitioned and transposed ‘petals’ shaped to fit together a circular pattern with each petal containing REBCO tape stack insulated from other reduce AC losses. stainless-steel jacket adds mechanical robustness—also serving as vessel solder impregnation—while tube runs through...
Brookhaven National Laboratory is hosting the Electron Ion Collider (EIC). B1APF dipole last magnet near interaction point #6. The longitudinal geometrical space available for this 1.5 m. diameter of coil mandrel 370 mm. 3-dimensional ends design particularly challenging because large aspect ratio. operating current and temperature are 12600 A 1.9 K respectively. It produces an integrated field 4.05 Tm. wound with a NbTi Rutherford cable which 15.1 mm wide 1.8 thick. parameters 3D end...
A common coil design concept for 2-in-1 superconducting accelerator magnets is presented. It practically eliminates the major problems in ends of high field built with either temperature superconductors (HTS) or conventional superconductors. Racetrack coils, consisting rectangular blocks tapes cables, are to both apertures each aperture containing one-half coil. The easy wind conductors experiencing little strain. overall magnet design, construction and tooling also expected be simpler than...
The most effective way to achieve very high collision energies in a circular particle accelerator is maximize the field strength of main bending dipoles. In dipole magnets using Nb-Ti superconductor practical limit considered be 8-9 T. When Nb <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> Sn material utilized, level 15-16 T can achieved. To further push magnetic beyond limits, High Temperature Superconductors (HTS) need magnet design....
Quadrupoles in the fragment separator region of Facility for Rare Isotope Beams (FRIB) will be subjected to very large heat loads (over 200 Watts) and an intense level radiation (~10 MGy per year) into coils just first magnet. Magnets made with High Temperature Superconductors (HTS) are advantageous over conventional superconducting magnets since they can remove these more efficiently at higher temperatures. The proposed design is based on second generation (2G) HTS which allows operation...
Next-generation particle accelerators, such as the proposed Large Hadron Collider (LHC) energy upgrade (highenergy LHC), will require very-high-field (> 20 T) superconducting magnets. This paper describes progress toward this goal made to date a part of collaborative work between Particle Beam Lasers, Inc., and Brookhaven National Laboratory. To reduce cost, high-temperature superconductors (HTSs) are used in hybrid design with conventional low-temperature (LTSs) Nb3Sn NbTi. The focus is on...
Hybrid magnets are currently under consideration as an economically viable option towards 20 T dipole for next generation of particle accelerators. In these magnets, High Temperature Superconducting (HTS) materials used in the high field part coil with so-called insert coils, and Low Superconductors (LTS) like Nb3Sn Nb-Ti superconductors lower region outsert coils. The attractiveness hybrid lays on fact that, one hand, level is beyond practical limits 15-16 accelerator can be achieved only...
The proposed muon collider requires very high field solenoids in the range of 30-50 T. use High Temperature Superconductors (HTS) operating at low temperature (~ 4 K) is essential for achieving such fields a superconducting magnet. As part this program, we have built and successfully tested 25 mm aperture HTS insert generating 16 T peak (the highest ever achieved an all-HTS magnet), 100 midsert 9 field, designed outsert with conventional Low Superconductor (LTS) to provide additional field....
One of the advantages Bi-2212 is that a high J/sub c/ value can be obtained in wires with various shapes and filament configurations. Realization round wire made it possible to fabricate many kinds cable developed for applications low temperature superconductors (LTC). We successfully fabricated 30-strand Rutherford using 0.8 mm/sup d/ wire. Optimization cabling factor enables reduce I/sub degradation at edge. values were about 650-750 A 65 K noninductive winding condition, which corresponds...
After the LHC operates for several years at nominal parameters, it will be necessary to upgrade higher luminosity. Replacing low-/spl beta/ insertions with a performance design based on advanced superconducting magnets is one of most straightforward steps in this direction. Preliminary studies show that, magnet technology that expected developed by early next decade, factor 2 5 reduction /spl beta/* could achieved new insertions, as part an aimed 10 luminosity increase. In paper we survey...
Superconducting combined function magnets will be utilized for the 50 GeV-750 kW proton beam line J-PARC neutrino experiment and an R&D program has been launched at KEK. The magnet is designed to provide a with dipole field of 2.59 T quadrupole 18.7 T/m in coil aperture 173.4 mm. A single layer proposed reduce fabrication cost arrangement 2D cross-section results left-right asymmetry. This paper reports design study magnet.
Pancake coils are being fabricated using second generation (2G) High Temperature Superconductor (HTS) for a prototype 10 T solenoid. The length of conductor in each coil is 100 m and the inner diameter 101 mm. critical current was measured at 77 K liquid nitrogen down to ~20 helium gas. It has been observed that effect thermal shock during cool-down may cause performance degrade irreversibly. detailed results improvements achieve will be discussed.
A potential future muon collider requires high field solenoids ( 30 T) for the final cooling stage; Magnet Division at Brookhaven National Laboratory is undertaking task of demonstrating feasibility using high-temperature superconductors (HTS). The aim to construct an all-HTS dual-coil system capable delivering more than 20 T. Recently, a new record solenoid has been established with 15 T on-axis. In coil tests, it was noticed that during fast energy extraction, current in decays faster...
<para xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> The first quadrupole in the fragment separator region of proposed Facility for Rare Isotope Beams would be subjected to extremely high radiation and heat loads (<formula formulatype="inline"><tex>$\sim$</tex></formula>15 kW magnet 5 <formula formulatype="inline"><tex>$\hbox{kW/m}^{3}$</tex> </formula> coil). As a critical part this proposal, resistant made with generation High Temperature...
Samples of YBCO superconductor from two manufacturers were irradiated with protons at the BLIP facility BNL. Two specimens each type conductor to five fluences covering range 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">16</sup> 4 times10 xmlns:xlink="http://www.w3.org/1999/xlink">17</sup> protons/cm xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> . The beam parameters for irradiations 42 muA and 142 MeV. critical current (zero field, 1...