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A hybrid beam design for slow positron transport

Mulligan, F.J. and Lubell, M.S. (1993) A hybrid beam design for slow positron transport. Measurement Science and Technology, 4. pp. 197-203.

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Abstract

The authors report on the design of a hybrid transport system for slow positrons based upon the high-intensity magnetically transported positron beam, which existed at the Brookhaven (BNL) high-flux beam reactor (HFBR) in 1986. The resulting modified transport, incorporating an initial electrostatic stage followed by a magnetic stage and completed by brightness enhancement moderation leading to a final electrostatic section, represented the minimum alteration of the existing beam to enable it to be used for crossed-beams differential scattering studies involving a variety of atomic and molecular systems, including atomic hydrogen. A recent proposal for constructing a very high-intensity positron beam at the Paul Scherrer Institute (PSI), based upon magnetic confinement premoderation, has rekindled interest in the conclusions of the study.

Item Type: Article
Keywords: Hybrid beam; positron transport;
Subjects: Science & Engineering > Experimental Physics
Item ID: 811
Depositing User: Dr. Frank Mulligan
Date Deposited: 30 Nov 2007
Journal or Publication Title: Measurement Science and Technology
Publisher: IOP Publishing Ltd.
Refereed: Yes
URI:

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