Development of Texas intense positron source

Köymen, A. R.; Ünlü, Kenan; Jacobsen, F. M.; Goktepeli, S.; Wehring, B.W.

doi:10.1016/s0168-9002(98)01008-0

Cited by 4 publications

(1 citation statement)

References 9 publications

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“…Moderation of these positrons produces a continuous slow positron beam. There are several research reactors worldwide at which such positron beamlines have been installed [26][27][28][29].…”

Section: 23mentioning

confidence: 99%

Production and Applications of Intense Pulsed, Slow Positron Beams

O’Rourke

Oshima

Kinomura

et al. 2012

DDF

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Positron annihilation lifetime spectroscopy (PALS) is an experimental technique whereby the lifetime spectrum of positrons injected into a material is measured. Analysis of this spectrum can be used to characterize defects in the material. While radioisotope positron sources are often used for PALS, there are several advantages of using mono-energetic, slow positron beams. In order to measure lifetime spectra with such beams it is necessary to produce a pulsed beam with an extremely short pulse length (~ 200 ps). In this article we discuss the advantages of using pulsed, slow-positron beams, the various methods of beam production and pulsing methods. We focus in particular on intense beams generated by electron accelerators and describe the current status and future plans for the accelerator based facility at AIST.

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Section: 23mentioning

confidence: 99%