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.

MATTER AT HIGH DENSITY AND TEMPERATURE AT RHIC

2005 ◽  
Vol 20 (22) ◽  
pp. 5224-5233
Author(s):  
J. C. DUNLOP
Keyword(s):  
National Laboratory ◽  
Dense Matter ◽  
Theoretical Work ◽  
Heavy Ion ◽  
Brookhaven National Laboratory ◽  
High Density ◽  
Current Investigation ◽  
Relativistic Heavy Ion Collider ◽  
Quantitative Measurements ◽  
The Status

The status of current investigation of hot and dense matter at the Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory (BNL) is reviewed. Indications for the creation of a dense, strongly interacting system have been seen. Further experimental and theoretical work is needed to convert these indications into quantitative measurements of the properties of the system created.

scholarly journals Optics modification of the electron collector for the Relativistic Heavy Ion Collider Electron Beam Ion Source

2012 ◽  
Author(s):  
Pikin A. ◽  
J.G. Alessi ◽  
E.N. Beebe ◽  
D. Raparia ◽  
L. Snydstrup
Keyword(s):  
Electron Beam ◽  
Heavy Ion ◽  
Ion Source ◽  
Relativistic Heavy Ion Collider

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.

Laser ion source with solenoid for Brookhaven National Laboratory-electron beam ion source

2012 ◽  
Vol 83 (2) ◽  
pp. 02B319 ◽  
Author(s):  
K. Kondo ◽  
T. Yamamoto ◽  
M. Sekine ◽  
M. Okamura
Keyword(s):  
Electron Beam ◽  
National Laboratory ◽  
Brookhaven National Laboratory ◽  
Ion Source ◽  
Laser Ion Source

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.

Recent results with Au ions from a multiampere electron beam ion source at Brookhaven National Laboratory (invited abstract)

2004 ◽  
Vol 75 (5) ◽  
pp. 1542-1542 ◽  
Author(s):  
E. N. Beebe ◽  
J. G. Alessi ◽  
D. Graham ◽  
A. Kponou ◽  
A. Pikin ◽  
...  
Keyword(s):  
Electron Beam ◽  
National Laboratory ◽  
Brookhaven National Laboratory ◽  
Ion Source

Experimental results from the Brookhaven National Laboratory test electron beam ion source

1998 ◽  
Vol 69 (2) ◽  
pp. 640-642 ◽  
Author(s):  
E. Beebe ◽  
J. Alessi ◽  
A. Hershcovitch ◽  
A. Kponou ◽  
A. Pikin ◽  
...  
Keyword(s):  
Electron Beam ◽  
Laboratory Test ◽  
National Laboratory ◽  
Brookhaven National Laboratory ◽  
Ion Source ◽  
Experimental Results ◽  
Test Electron

scholarly journals Optics modification of the electron collector for the Relativistic Heavy Ion Collider Electron Beam Ion Source

2012 ◽  
Author(s):  
Pikin A. ◽  
J.G. Alessi ◽  
E.N. Beebe ◽  
D. Raparia ◽  
L. Snydstrup
Keyword(s):  
Electron Beam ◽  
Heavy Ion ◽  
Ion Source ◽  
Relativistic Heavy Ion Collider

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.

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