Brookhaven National Laboratory electron beam test stand

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.

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

Review of Scientific Instruments ◽

10.1063/1.1148726 ◽

1998 ◽

Vol 69 (2) ◽

pp. 640-642 ◽

Cited By ~ 3

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

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The Neutral Beam Test Facility and Radiation Effects Facility at Brookhaven National Laboratory

Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms ◽

10.1016/0168-583x(91)95078-r ◽

1991 ◽

Vol 56-57 ◽

pp. 987-990

Author(s):

R.B. MeKenzie-Wilson

Keyword(s):

Radiation Effects ◽

National Laboratory ◽

Brookhaven National Laboratory ◽

Neutral Beam ◽

Test Facility ◽

Beam Test

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Two approaches to electron beam enhancement of the metal vapor vacuum arc ion source

Laser and Particle Beams ◽

10.1017/s0263034603211198 ◽

2003 ◽

Vol 21 (1) ◽

pp. 103-108

Author(s):

B.M. JOHNSON ◽

A. HERSHCOVITCH ◽

A.S. BUGAEV ◽

V.I. GUSHENETS ◽

E.M. OKS ◽

...

Keyword(s):

Electron Beam ◽

National Laboratory ◽

Metal Vapor ◽

Brookhaven National Laboratory ◽

Ion Source ◽

Vacuum Arc ◽

High Current Electronics ◽

Experimental Physics ◽

Internal Electron ◽

Charge States

Conclusive demonstration of electron-beam enhancement of ion charge states for the Metal Vapor Vacuum Arc (MEVVA) ion source was recently achieved using an external electron beam (E-MEVVA) in experiments performed jointly among the Institute for Theoretical and Experimental Physics (ITEP), Moscow, Russia, the High Current Electronics Institute (HCEI), Tomsk, Russia, and Brookhaven National Laboratory (BNL), USA. The E-MEVVA experiments were performed in Moscow and Tomsk with nearly the same design of ion sources. Results for lead and bismuth cathodes yielded maximum ion charge states of Pb7+ and Bi8+ for E-MEVVA, as compared to Pb2+ and Bi2+ for conventional MEVVA operation. Additional encouraging results were also obtained using a Z-discharge to produce an internal electron-beam (Z-MEVVA and LIZ-MEV).

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