scholarly journals Annual report of the Brookhaven National Laboratory Heavy Ion Fusion Project, 1 October 1977--1 October 1978

1979 ◽  
Author(s):  
Keyword(s):  
Annual Report ◽  
National Laboratory ◽  
Heavy Ion ◽  
Brookhaven National Laboratory ◽  
Heavy Ion Fusion

scholarly journals Latest Results from RHIC + Progress on Determining q ^ L in RHI Collisions Using Di-Hadron Correlations

Universe ◽  
2019 ◽  
Vol 5 (6) ◽  
pp. 140
Author(s):  
Michael J. Tannenbaum
Keyword(s):  
National Laboratory ◽  
Heavy Ion ◽  
Brookhaven National Laboratory ◽  
Collider Physics ◽  
Relativistic Heavy Ion Collider ◽  
The Future

Results from Relativistic Heavy Ion Collider Physics in 2018 and plans for the future at Brookhaven National Laboratory are presented.

scholarly journals Chiral Magnetic Effects in Nuclear Collisions

2020 ◽  
Vol 70 (1) ◽  
pp. 293-321 ◽  
Author(s):  
Wei Li ◽  
Gang Wang
Keyword(s):  
National Laboratory ◽  
Hadron Collider ◽  
Transport Phenomena ◽  
Heavy Ion ◽  
Gluon Plasma ◽  
High Energy ◽  
Brookhaven National Laboratory ◽  
Relativistic Heavy Ion Collider ◽  
Nuclear Collisions ◽  
Chiral Magnetic Effect

The interplay of quantum anomalies with strong magnetic fields and vorticity in chiral systems could lead to novel transport phenomena, such as the chiral magnetic effect (CME), the chiral magnetic wave (CMW), and the chiral vortical effect (CVE). In high-energy nuclear collisions, these chiral effects may survive the expansion of a quark–gluon plasma fireball and be detected in experiments. The experimental searches for the CME, the CMW, and the CVE have aroused extensive interest over the past couple of decades. The main goal of this article is to review the latest experimental progress in the search for these novel chiral transport phenomena at the Relativistic Heavy Ion Collider at Brookhaven National Laboratory and the Large Hadron Collider at CERN. Future programs to help reduce uncertainties and facilitate the interpretation of the data are also discussed.

scholarly journals Development of a Polarized Helium-3 Source for RHIC and eRHIC

2016 ◽  
Vol 40 ◽  
pp. 1660102 ◽  
Author(s):  
J. Maxwell ◽  
C. Epstein ◽  
R. Milner ◽  
J. Alessi ◽  
E. Beebe ◽  
...  
Keyword(s):  
Electron Beam ◽  
Nuclear Polarization ◽  
Optical Pumping ◽  
National Laboratory ◽  
Heavy Ion ◽  
Brookhaven National Laboratory ◽  
Ion Source ◽  
Relativistic Heavy Ion Collider ◽  
The Status ◽  
Helium 3

The addition of a polarized 3He ion source for use at the Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory would enable a host of new measurements, particularly in the context of a planned eRHIC. We are developing such a source using metastability exchange optical pumping to polarize helium-3, which will be then transferred into RHIC’s Electron Beam Ion Source for ionization. We aim to deliver nuclear polarization of near 70%, and roughly 10[Formula: see text] doubly-ionized 3He[Formula: see text] ions will be created in each 20 [Formula: see text]sec pulse. We discuss the design of the source, and the status of its development.

scholarly journals Overview of virtual national laboratory objectives, plans, and projects

2002 ◽  
Vol 20 (3) ◽  
pp. 369-375 ◽  
Author(s):  
B.G. LOGAN ◽  
C.M. CELATA ◽  
J.W. KWAN ◽  
E.P. LEE ◽  
M. LEITNER ◽  
...  
Keyword(s):  
Focal Spot ◽  
National Laboratory ◽  
Heavy Ion ◽  
Beam Current ◽  
Secondary Electrons ◽  
Ion Energy ◽  
Space Potential ◽  
High Beam Current ◽  
Heavy Ion Fusion ◽  
Made In

Significant experimental and theoretical progress has been made in the U.S. heavy ion fusion program on high-current sources, transport, and focusing. Currents over 200 mA have been transported through a matching section and 10 half-lattice periods with electric quadrupoles. An experiment shows control of high-beam current with an aperture, while avoiding secondary electrons. New theory and simulations of the neutralization of intense beam space charge with plasma in various focusing chamber configurations predict that near-emittance-limited beam focal spot sizes can be obtained even with beam perveance (ratio of beam space potential to ion energy) >10× higher than in earlier HIF focusing experiments. Progress in a new focusing experiment with plasma neutralization up to 10−3 perveance, and designs for a next-step experiment to study beam brightness evolution from source to target are described.

Explosion Hazard Analysis for the Brookhaven National Laboratory Relativistic Heavy Ion Collider PHENIX Detector

1999 ◽  
Author(s):  
Gaby Ciccarelli
Keyword(s):  
Ambient Pressure ◽  
National Laboratory ◽  
Ambient Air ◽  
Heavy Ion ◽  
Brookhaven National Laboratory ◽  
Explosion Hazard ◽  
Relativistic Heavy Ion Collider ◽  
Entire Volume ◽  
Experimental Hall ◽  
Block Wall

Abstract Currently under construction at Brookhaven National Laboratory (BNL) is a large 3.8 km in circumference collider called the Relativistic Heavy Ion Collider (RHIC). The collider is capable of creating thousands of head-on collisions between beams of heavy ions, e.g., gold, or polarized protons traveling at nearly the speed of light Four experiments built along RHIC’s underground ring will measure the particles unleashed when the beams collide. This study deals with the PHENIX Detector which roughly fills an Experimental Hall with a floor area of 18.6 m by 15.8 m and a height of 14.3 m. The RHIC tunnel connects to the Experimental Hall through two opposite walls. The large tunnel openings are almost completely obstructed by massive steel plates which are part of the PHENIX Muon detector system. The Experimental Hall walls are all fixed except for one which is constructed from 1.7 m thick concrete blocks covering an opening which is 18 m wide by 14.0 m high. This block wall has a plug door which is designed to be unstacked so that large PHENIX detector systems can be transferred from the Experimental Hall into the adjacent Assembly Hall when required. The detector consists of several systems, each with its own role in detecting subatomic particles. Combustible gases such as ethane, isobutane, and methane are used in several of the detector systems. In particular, one of the systems called the Ring Imaging Cherenkov Detector (RICH) uses 80 m3 of pure ethane in two welded aluminum frames each with two large 0.127 mm thick aluminized KAPTON windows. The ethane gas is maintained at a pressure of a fraction of an inch of water above the ambient pressure. The work reported here deals with a safety analysis for a hypothetical accident scenario whereby the RICH windows are damaged and all the ethane inventory is released into the Experimental Hall, mixed with the ambient air and ignited. The objective of the analysis was to determine the scope of damage to the experiment and danger to personnel under various accident scenarios involving the extent of ethane gas release, the degree of mixing with ambient air and the mode of combustion. If all the ethane is assumed to be released and allowed to mix with the entire volume of air contained within the Experimental Hall, the calculations show that ignition of this mixture would not result in the collapse of the block wall.

CURRENT STATUS OF PROPERTIES AND SIGNALS OF THE QUARK-GLUON PLASMA

1992 ◽  
Vol 07 (29) ◽  
pp. 7185-7237 ◽  
Author(s):  
C.P. SINGH
Keyword(s):  
Phase Transition ◽  
Quark Gluon Plasma ◽  
Quark Matter ◽  
National Laboratory ◽  
Heavy Ion ◽  
Gluon Plasma ◽  
Brookhaven National Laboratory ◽  
Current Status ◽  
State Of Matter ◽  
New State Of Matter

Heavy ion experiments at the AGS machine of Brookhaven National Laboratory and SPS of CERN are aimed at producing and diagnosing a new state of matter, the quark-gluon plasma. Some important and relevant issues involving the nature and the detection aspects of the phase transition from hadron to quark matter are reviewed in an introductory and pedagogical way.

scholarly journals Integrated experiments for heavy ion fusion

2003 ◽  
Vol 21 (4) ◽  
pp. 553-560 ◽  
Author(s):  
J.J. BARNARD ◽  
L.E. AHLE ◽  
F.M. BIENIOSEK ◽  
C.M. CELATA ◽  
R.C. DAVIDSON ◽  
...  
Keyword(s):  
Ion Beam ◽  
National Laboratory ◽  
Heavy Ion ◽  
Trade Offs ◽  
Integrated Research ◽  
Beam Experiment ◽  
Research Experiment ◽  
Significant Line ◽  
Induction Accelerator ◽  
Heavy Ion Fusion

We describe the next set of experiments proposed in the U.S. Heavy Ion Fusion Virtual National Laboratory, the so-called Integrated Beam Experiment (IBX). The purpose of IBX is to investigate in an integrated manner the processes and manipulations necessary for a heavy ion fusion induction accelerator. The IBX experiment will demonstrate injection, acceleration, compression, bending, and final focus of a heavy ion beam at significant line charge density. Preliminary conceptual designs are presented and issues and trade-offs are discussed. Plans are also described for the step after IBX, the Integrated Research Experiment (IRE), which will carry out significant target experiments.

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