Positron bunching and electrostatic transport system for the production and emission of dense positronium clouds into vacuum

• DOI: 10.1016/j.nimb.2015.08.097
• Publication Date: 2015-09-25T14:04:48Z
• Authors: S. Aghion; C. Amsler; A. Ariga; T. Ariga; A.S. Belov; G. Bonomi; P. Bräunig; J. Bremer; R.S. Brusa; L. Cabaret; M. Caccia; R. Caravita; F. Castelli; G. Cerchiari; K. Chlouba; S. Cialdi; D. Comparat; G. Consolati; A. Demetrio; L. Di Noto; M. Doser; A. Dudarev; A. Ereditato; C. Evans; J. Fesel; A. Fontana; O.K. Forslund; S. Gerber; M. Giammarchi; A. Gligorova; S. Gninenko; F. Guatieri; S. Haider; H. Holmestad; T. Huse; I.L. Jernelv; E. Jordan; T. Kaltenbacher; A. Kellerbauer; M. Kimura; T. Koetting; D. Krasnicky; V. Lagomarsino; P. Lebrun; P. Lansonneur; S. Lehner; J. Liberadzka; C. Malbrunot; S. Mariazzi; L. Marx; V. Matveev; Z. Mazzotta; G. Nebbia; P. Nedelec; M. Oberthaler; N. Pacifico; D. Pagano; L. Penasa; V. Petracek; C. Pistillo; F. Prelz; M. Prevedelli; L. Ravelli; B. Rienäcker; O.M. Røhne; S. Rosenberger; A. Rotondi; M. Sacerdoti; H. Sandaker; R. Santoro; P. Scampoli; F. Sorrentino; M. Spacek; J. Storey; I.M. Strojek; G. Testera; I. Tietje; S. Vamosi; E. Widmann; P. Yzombard; S. Zavatarelli; J. Zmeskal
• Keywords: Bunching; Positron; Positronium; Instrumentation; Nuclear and High Energy Physics; Nuclear and High Energy Physics; Positron; Positronium; 530; Positron, Positronium, Bunching; 01 natural sciences; 7. Clean energy; 0103 physical sciences; 11. Sustainability; [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]; Bunching; Positron; Positronium; Bunching; Bunching; Positron; Positronium; Nuclear and High Energy Physics; Instrumentation; Instrumentation; Nuclear and High Energy Physic

AbstractWe describe a system designed to re-bunch positron pulses delivered by an accumulator supplied by a positron source and a Surko-trap. Positron pulses from the accumulator are magnetically guided in a 0.085T field and are injected into a region free of magnetic fields through a μ-metal field terminator. Here positrons are temporally compressed, electrostatically guided and accelerated towards a porous silicon target for the production and emission of positronium into vacuum. Positrons are focused in a spot of less than 4mm FWTM in bunches of ∼8ns FWHM. Emission of positronium into the vacuum is shown by single shot positron annihilation lifetime spectroscopy.