A5067513281- Superconducting Materials and Applications
- Particle accelerators and beam dynamics
- Particle Accelerators and Free-Electron Lasers
- Physics of Superconductivity and Magnetism
- Electric Motor Design and Analysis
- Magnetic confinement fusion research
- Eosinophilic Esophagitis
- Magnetic Properties and Applications
- Magnetic Properties of Alloys
- Innovations in Medical Education
- Spacecraft and Cryogenic Technologies
- HVDC Systems and Fault Protection
- Health and Medical Research Impacts
- IL-33, ST2, and ILC Pathways
- Antenna Design and Analysis
- Diversity and Career in Medicine
- Gastroesophageal reflux and treatments
- Inflammatory Bowel Disease
- Electromagnetic Launch and Propulsion Technology
- Transport and Economic Policies
- Metabolism and Genetic Disorders
- Cerebrospinal fluid and hydrocephalus
- Electromagnetic Compatibility and Measurements
- Canadian Identity and History
- Neurological and metabolic disorders
University of Virginia
2023-2024
Brookhaven National Laboratory
1989-2003
Brookhaven College
1994-2002
Associated Universities, Inc.
2002
Beaumont Hospital
1993-1995
University of Cambridge
1995
UCLA Medical Center
1995
Hull Royal Infirmary
1995
University of Hull
1995
Royal London Hospital
1995
Penelitian ini bertujuan mengembangkan alat ukur moral injury pada mahasiswa yang valid dan reliabel dalam konteks pendidikan tinggi. Moral didefinisikan sebagai dampak psikologis akibat pelanggaran nilai diyakini, dapat memicu rasa bersalah, malu, krisis eksistensial. Instrumen dikembangkan diuji melalui analisis item, validitas, reliabilitas. Hasil menunjukkan bahwa seluruh item memiliki korelasi item-total di atas 0,30 factor loading ≥ 0,40, menandakan validitas kelayakan secara...
Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation A. Devred, T. Bush, R. Coombes, J. DiMarco, C. Goodzeit, Kuzminski, M. Puglisi, P. Radusewicz, Sanger, Schermer, G. Spigo, Thompkins, Turner, Z. Wolf, Y. Yu, H. Zheng, Ogitsu, Anerella, Cottingham, Ganetis, Garber, Ghosh, Greene, Gupta, Herrera, S. Kahn, E. Kelly, Meade, Morgan, Muratore, Prodell, Rehak,...
A high field quality in quadrupoles for the interaction region is crucial to luminosity performance of energy colliders such as Relativistic Heavy Ion Collider (RHIC). The magnets limited part by manufacturing tolerances parts and assembly. tuning shim method has been developed reduce relative errors (/spl Delta/B/B) from /spl sim/10/sup -4/ -5/ at 2/3 coil radius. Eight shims having a variable thickness iron are inserted after construction measurement harmonics magnet. In this paper...
Four full-scale SSC (Superconducting Super Collider) research and development dipole magnets, incorporating successive mechanical design improvements, have been quench-tested. Three of the magnets are heavily instrumented with sensors to measure their behavior verify effectiveness improvements multiple voltage taps locate origin quenches. The last two this series reach operating field 6.6 T in or fewer Load cells motion show that these azimuthal clamping stress is higher at zero current...
Four of the initial six 17m long demonstration dipole magnets for proposed Superconducting Super Collider have been constructed, and first one is now being tested. This paper describes magnet design construction cold mass assembly. The are iron (and bore) 1-in-1 dipoles, wound with partially keystoned current density-graded high homogeneity NbTi cable in a two-layer <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">\cos \theta</tex> coil 40 mm...
RHIC will require 420 80 mm corrector magnets. The magnets are made up of coils wound on a computer controlled wiring machine using ultrasonic power to bond the wire into an epoxy coated flat substrate. wrapped onto support tubes and concentrically assembled inside iron yoke. These being built at Brookhaven National Laboratory with more than 280 constructed by May, 1 1995. Design, construction test results presented.
Results are presented from tests of the third full-scale development dipole magnet for Superconducting Super Collider (SSC) and a retest 4.5-m model same design mounted in an SSC cryostat. The showed consistent quench performance between its original boiling liquid helium vertical dewar current forced-flow horizontal Little or no retraining was observed over several thermal cycles. full-length required 12 quenches to train short-sample limit 6800 A displayed reasonably stable plateau...
The ultimate luminosity performance of the Relativistic Heavy Ion Collider (RHIC) depends on field quality in large aperture (130 mm) superconducting quadrupoles interaction regions. In this paper we discuss design features that are incorporated to obtain a good quality. Coil midplane gap and pole shims may be adjusted remove certain harmonics due systematic errors construction. Iron tuning will inserted at eight strategic locations assembled magnets correct measured values each magnet. two...
The Relativistic Heavy Ion Collider now under construction at Brookhaven National Laboratory (BNL) is a colliding ring accelerator to be completed in 1999. Through collisions of heavy ions it hoped observe the creation matter extremely high temperatures and densities, similar what may have occurred original "Big Bang". collider rings will consist 1740 superconducting magnet elements. Some these elements are being manufactured by industrial partners (Northrop Grumman Everson Electric). Others...
The quench performance and ramp rate sensitivity of 18 5-cm-aperture, 15-m-long Superconducting Super Collider (SSC) dipole magnet prototypes are discussed. All the magnets appear to reach a plateau near their extrapolated short sample current limit well in excess operating with very little training. Most magnets, however, exhibit dramatic degradation as function rate, which, for most part, can be attributed large cable eddy currents.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML"...
Eighteen 5-cm-aperture, 15-m-long Superconducting Super Collider (SSC) dipole magnet prototypes have been produced and cold tested. On each prototype, the dependence of harmonic field coefficients on magnetic current was measured as part a study quality. For most magnets, observed behavior conforms to what can be expected from effects persistent magnetization currents iron yoke saturation. A few prototypes, however, exhibited anomalies during ramp at 4 A/s which attributed large cable eddy...
The 50-mm coil (i.d.) Superconducting Super Collider (SSC) dipole magnets use wider cables to give a greater operational margin between the quench field and operating field. cable used for inner has 30 strands of same size (0.808 mm) instead 23, outer 36 (0.648 30, widths are increased in proportion. Although diameter been from 40 mm, ends noticeably harder wind. authors describe computational experimental effort design winding mandrels or center posts constant-perimeter ends.
Results are presented from tests of the first full length prototype SSC dipole magnet. The cryogenic behavior magnet during a slow cooldown to 4.5K and warmup room temperature has been measured. Magnetic field quality was measured at currents up 2000 A. Averaged over body all harmonics with exception b <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> xmlns:xlink="http://www.w3.org/1999/xlink">8</inf> or within tolerances specified by...
The successful performance of four full-length research and development (R&D) dipole magnets for the proposed Relativistic Heavy Ion Collider (RHIC) is reported. A review given design, initial prototypes recounted. These were built by a cooperative arrangement between Brookhaven National Laboratory an industrial vendor in West Germany. reached quench plateau approximately 4.5 T with very reasonable 'training'. Quench data are presented along results field-quality measurements. Measured field...
Quench propagation velocities and conductor hot spot temperatures have been studied during the testing of RHIC superconducting dipole magnets. These studies were facilitated by artificially inducing quenches with heaters. The results these tests are presented here compared adiabatic model calculations.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Production of superconducting wire and cable for the Relativistic Heavy Ion Collider (RHIC) dipoles quadrupoles is now complete. This report presents final statistics generated during manufacture testing this cable.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>