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

被引：40

作者：

Aghion, S. ^{[1
,2
]}

Amsler, C. ^{[3
]}

Ariga, A. ^{[3
]}

Ariga, T. ^{[3
]}

Belov, A. S. ^{[4
]}

Bonomi, G. ^{[5
,6
]}

Braeunig, P. ^{[7
]}

Bremer, J. ^{[8
]}

Brusa, R. S. ^{[9
,10
]}

Cabaret, L. ^{[11
]}

Caccia, M. ^{[2
,12
]}

Caravita, R. ^{[8
,13
,14
]}

Castelli, F. ^{[2
,15
]}

Cerchiari, G. ^{[16
]}

Chlouba, K. ^{[17
]}

Cialdi, S. ^{[2
,15
]}

Comparat, D. ^{[11
]}

Consolati, G. ^{[1
,2
]}

Demetrio, A. ^{[7
]}

Di Noto, L. ^{[13
,14
]}

Doser, M. ^{[8
]}

Dudarev, A. ^{[8
]}

Ereditato, A. ^{[3
]}

Evans, C. ^{[1
,2
]}

Fesel, J. ^{[8
]}

Fontana, A. ^{[6
]}

Forslund, O. K. ^{[8
]}

Gerber, S. ^{[8
]}

Giammarchi, M. ^{[2
,3
]}

Gligorova, A. ^{[18
]}

Gninenko, S. ^{[4
]}

Guatieri, F. ^{[9
,10
]}

Haider, S. ^{[8
]}

Holmestad, H. ^{[19
]}

Huse, T. ^{[19
]}

Jernelv, I. L. ^{[8
]}

Jordan, E. ^{[16
]}

Kaltenbacher, T. ^{[3
]}

Kellerbauer, A. ^{[16
]}

Kimura, M. ^{[3
]}

Koetting, T. ^{[8
]}

Krasnicky, D. ^{[14
]}

Lagomarsino, V. ^{[13
,14
]}

Lebrun, P. ^{[23
]}

Lansonneur, P. ^{[23
]}

Lehner, S. ^{[20
]}

Liberadzka, J. ^{[8
]}

Malbrunot, C. ^{[8
,20
]}

Mariazzi, S. ^{[20
]}

Marx, L. ^{[8
]}

机构：

[1] Politecn Milan, I-20133 Milan, Italy

[2] Ist Nazl Fis Nucl, I-20133 Milan, Italy

[3] Univ Bern, Albert Einstein Ctr Fundamental Phys, High Energy Phys Lab, CH-3012 Bern, Switzerland

[4] Russian Acad Sci, Inst Nucl Res, Moscow 117312, Russia

[5] Univ Brescia, Dept Mech & Ind Engn, I-25123 Brescia, Italy

[6] Ist Nazl Fis Nucl, I-27100 Pavia, Italy

[7] Heidelberg Univ, Kirchhoff Inst Phys, D-69120 Heidelberg, Germany

[8] CERN, Dept Phys, CH-1211 Geneva 23, Switzerland

[9] Univ Trento, Dept Phys, I-38123 Povo, Trento, Italy

[10] TIFPA INFN Trento, Povo, Trento, Italy

[11] Univ Paris Saclay, CNRS, ENS Cachan, Univ Paris 11,Lab Aime Cotton, F-91405 Orsay, France

[12] Univ Insubria, Dept Sci, I-22100 Como, Italy

[13] Univ Genoa, Dept Phys, I-16146 Genoa, Italy

[14] Ist Nazl Fis Nucl, I-16146 Genoa, Italy

[15] Univ Milan, Dept Phys, I-20133 Milan, Italy

[16] Max Planck Inst Nucl Phys, D-69117 Heidelberg, Germany

[17] Czech Tech Univ, Prague 11519 1, Czech Republic

[18] Univ Bergen, Inst Phys & Technol, N-5007 Bergen, Norway

[19] Univ Oslo, Dept Phys, N-0371 Oslo, Norway

[20] Austrian Acad Sci, Stefan Meyer Inst Subatom Phys, A-1090 Vienna, Austria

[21] Joint Inst Nucl Res, Dubna 141980, Russia

[22] Ist Nazl Fis Nucl, I-35131 Padua, Italy

[23] Univ Lyon 1, CNRS, IN2P3, Inst Nucl Phys, F-69622 Villeurbanne, France

[24] Univ Bologna, I-40126 Bologna, Italy

[25] Univ Pavia, Dept Phys, I-27100 Pavia, Italy

[26] Univ Naples Federico II, Dept Phys, I-80126 Naples, Italy

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2015年 / 362卷

基金：

欧洲研究理事会;

关键词：

Positron; Positronium; Bunching; EXCITATION;

D O I：

10.1016/j.nimb.2015.08.097

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We 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 0.085 T field and are injected into a region free of magnetic fields through a mu-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 4 mm FWTM in bunches of similar to 8 ns FWHM. Emission of positronium into the vacuum is shown by single shot positron annihilation lifetime spectroscopy. (C) 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

引用

页码：86 / 92

页数：7

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