Characterization of a transmission positron/positronium converter for antihydrogen production

S. Aghion; C. Amsler; T. Ariga; G. Bonomi; R.S. Brusa; M. Caccia; R. Caravita; F. Castelli; G. Cerchiari; D. Comparat; G. Consolati; A. Demetrio; L. Di Noto; M. Doser; A. Ereditato; C. Evans; R. Ferragut; J. Fesel; A. Fontana; S. Gerber; M. Giammarchi; A. Gligorova; F. Guatieri; S. Haider; A. Hinterberger; H. Holmestad; A. Kellerbauer; D. Krasnický; V. Lagomarsino; P. Lansonneur; P. Lebrun; C. Malbrunot; S. Mariazzi; V. Matveev; Z. Mazzotta; S.R. Müller; G. Nebbia; P. Nedelec; M. Oberthaler; N. Pacifico; D. Pagano; L. Penasa; V. Petracek; L. Povolo; F. Prelz; M. Prevedelli; L. Ravelli; L. Resch; B. Rienäcker; J. Robert; O.M. Røhne; A. Rotondi; M. Sacerdoti; H. Sandaker; R. Santoro; P. Scampoli; M. Simon; L. Smestad; F. Sorrentino; G. Testera; I.C. Tietje; E. Widmann; P. Yzombard; C. Zimmer; J. Zmeskal; N. Zurlo; S.L. Andersen; J. Chevallier; U.I. Uggerhøj; F. Lyckegaard

doi:10.1016/j.nimb.2017.05.059

Characterization of a transmission positron/positronium converter for antihydrogen production

S. Aghion, C. Amsler, T. Ariga, G. Bonomi, R.S. Brusa, M. Caccia, R. Caravita, F. Castelli, G. Cerchiari, D. Comparat, G. Consolati, A. Demetrio, L. Di Noto, M. Doser, A. Ereditato, C. Evans, R. Ferragut, J. Fesel, A. Fontana, S. GerberM. Giammarchi, A. Gligorova, F. Guatieri, S. Haider, A. Hinterberger, H. Holmestad, A. Kellerbauer, D. Krasnický, V. Lagomarsino, P. Lansonneur, P. Lebrun, C. Malbrunot, S. Mariazzi, V. Matveev, Z. Mazzotta, S.R. Müller, G. Nebbia, P. Nedelec, M. Oberthaler, N. Pacifico, D. Pagano, L. Penasa, V. Petracek, L. Povolo, F. Prelz, M. Prevedelli, L. Ravelli, L. Resch, B. Rienäcker, J. Robert, O.M. Røhne, A. Rotondi, M. Sacerdoti, H. Sandaker, R. Santoro, P. Scampoli, M. Simon, L. Smestad, F. Sorrentino, G. Testera, I.C. Tietje, E. Widmann, P. Yzombard, C. Zimmer, J. Zmeskal, N. Zurlo, S.L. Andersen, J. Chevallier, U.I. Uggerhøj, F. Lyckegaard

Research output: Contribution to Journal › Article › Academic › peer-review

Abstract

© 2017 Elsevier B.V.In this work a characterization study of forward emission from a thin, meso-structured silica positron/positronium (Ps) converter following implantation of positrons in light of possible antihydrogen production is presented. The target consisted of a ∼1 μm thick ultraporous silica film e-gun evaporated onto a 20 nm carbon foil. The Ps formation and emission was studied via Single Shot Positron Annihilation Lifetime Spectroscopy measurements after implantation of pulses with 3-4·107 positrons and 10 ns temporal width. The forward emission of implanted positrons and secondary electrons was investigated with a micro-channel plate – phosphor screen assembly, connected either to a CCD camera for imaging of the impinging particles, or to a fast photomultiplier tube to extract information about their time of flight. The maximum Ps formation fraction was estimated to be ∼10%. At least 10% of the positrons implanted with an energy of 3.3 keV are forward-emitted with a scattering angle smaller than 50° and maximum kinetic energy of 1.2 keV. At least 0.1–0.2 secondary electrons per implanted positron were also found to be forward-emitted with a kinetic energy of a few eV. The possible application of this kind of positron/positronium converter for antihydrogen production is discussed.

Original language	English
Pages (from-to)	55-66
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	407
DOIs	https://doi.org/10.1016/j.nimb.2017.05.059
Publication status	Published - 15 Sep 2017
Externally published	Yes

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10.1016/j.nimb.2017.05.059

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Aghion, S., Amsler, C., Ariga, T., Bonomi, G., Brusa, R. S., Caccia, M., Caravita, R., Castelli, F., Cerchiari, G., Comparat, D., Consolati, G., Demetrio, A., Di Noto, L., Doser, M., Ereditato, A., Evans, C., Ferragut, R., Fesel, J., Fontana, A., ... Lyckegaard, F. (2017). Characterization of a transmission positron/positronium converter for antihydrogen production. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 407, 55-66. https://doi.org/10.1016/j.nimb.2017.05.059

Aghion, S. ; Amsler, C. ; Ariga, T. ; Bonomi, G. ; Brusa, R.S. ; Caccia, M. ; Caravita, R. ; Castelli, F. ; Cerchiari, G. ; Comparat, D. ; Consolati, G. ; Demetrio, A. ; Di Noto, L. ; Doser, M. ; Ereditato, A. ; Evans, C. ; Ferragut, R. ; Fesel, J. ; Fontana, A. ; Gerber, S. ; Giammarchi, M. ; Gligorova, A. ; Guatieri, F. ; Haider, S. ; Hinterberger, A. ; Holmestad, H. ; Kellerbauer, A. ; Krasnický, D. ; Lagomarsino, V. ; Lansonneur, P. ; Lebrun, P. ; Malbrunot, C. ; Mariazzi, S. ; Matveev, V. ; Mazzotta, Z. ; Müller, S.R. ; Nebbia, G. ; Nedelec, P. ; Oberthaler, M. ; Pacifico, N. ; Pagano, D. ; Penasa, L. ; Petracek, V. ; Povolo, L. ; Prelz, F. ; Prevedelli, M. ; Ravelli, L. ; Resch, L. ; Rienäcker, B. ; Robert, J. ; Røhne, O.M. ; Rotondi, A. ; Sacerdoti, M. ; Sandaker, H. ; Santoro, R. ; Scampoli, P. ; Simon, M. ; Smestad, L. ; Sorrentino, F. ; Testera, G. ; Tietje, I.C. ; Widmann, E. ; Yzombard, P. ; Zimmer, C. ; Zmeskal, J. ; Zurlo, N. ; Andersen, S.L. ; Chevallier, J. ; Uggerhøj, U.I. ; Lyckegaard, F. / Characterization of a transmission positron/positronium converter for antihydrogen production. In: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms. 2017 ; Vol. 407. pp. 55-66.

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title = "Characterization of a transmission positron/positronium converter for antihydrogen production",

abstract = "{\textcopyright} 2017 Elsevier B.V.In this work a characterization study of forward emission from a thin, meso-structured silica positron/positronium (Ps) converter following implantation of positrons in light of possible antihydrogen production is presented. The target consisted of a ∼1 μm thick ultraporous silica film e-gun evaporated onto a 20 nm carbon foil. The Ps formation and emission was studied via Single Shot Positron Annihilation Lifetime Spectroscopy measurements after implantation of pulses with 3-4·107 positrons and 10 ns temporal width. The forward emission of implanted positrons and secondary electrons was investigated with a micro-channel plate – phosphor screen assembly, connected either to a CCD camera for imaging of the impinging particles, or to a fast photomultiplier tube to extract information about their time of flight. The maximum Ps formation fraction was estimated to be ∼10%. At least 10% of the positrons implanted with an energy of 3.3 keV are forward-emitted with a scattering angle smaller than 50° and maximum kinetic energy of 1.2 keV. At least 0.1–0.2 secondary electrons per implanted positron were also found to be forward-emitted with a kinetic energy of a few eV. The possible application of this kind of positron/positronium converter for antihydrogen production is discussed.",

author = "S. Aghion and C. Amsler and T. Ariga and G. Bonomi and R.S. Brusa and M. Caccia and R. Caravita and F. Castelli and G. Cerchiari and D. Comparat and G. Consolati and A. Demetrio and {Di Noto}, L. and M. Doser and A. Ereditato and C. Evans and R. Ferragut and J. Fesel and A. Fontana and S. Gerber and M. Giammarchi and A. Gligorova and F. Guatieri and S. Haider and A. Hinterberger and H. Holmestad and A. Kellerbauer and D. Krasnick{\'y} and V. Lagomarsino and P. Lansonneur and P. Lebrun and C. Malbrunot and S. Mariazzi and V. Matveev and Z. Mazzotta and S.R. M{\"u}ller and G. Nebbia and P. Nedelec and M. Oberthaler and N. Pacifico and D. Pagano and L. Penasa and V. Petracek and L. Povolo and F. Prelz and M. Prevedelli and L. Ravelli and L. Resch and B. Rien{\"a}cker and J. Robert and O.M. R{\o}hne and A. Rotondi and M. Sacerdoti and H. Sandaker and R. Santoro and P. Scampoli and M. Simon and L. Smestad and F. Sorrentino and G. Testera and I.C. Tietje and E. Widmann and P. Yzombard and C. Zimmer and J. Zmeskal and N. Zurlo and S.L. Andersen and J. Chevallier and U.I. Uggerh{\o}j and F. Lyckegaard",

year = "2017",

month = sep,

day = "15",

doi = "10.1016/j.nimb.2017.05.059",

language = "English",

volume = "407",

pages = "55--66",

journal = "Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms",

issn = "0168-583X",

publisher = "Elsevier",

}

Aghion, S, Amsler, C, Ariga, T, Bonomi, G, Brusa, RS, Caccia, M, Caravita, R, Castelli, F, Cerchiari, G, Comparat, D, Consolati, G, Demetrio, A, Di Noto, L, Doser, M, Ereditato, A, Evans, C, Ferragut, R, Fesel, J, Fontana, A, Gerber, S, Giammarchi, M, Gligorova, A, Guatieri, F, Haider, S, Hinterberger, A, Holmestad, H, Kellerbauer, A, Krasnický, D, Lagomarsino, V, Lansonneur, P, Lebrun, P, Malbrunot, C, Mariazzi, S, Matveev, V, Mazzotta, Z, Müller, SR, Nebbia, G, Nedelec, P, Oberthaler, M, Pacifico, N, Pagano, D, Penasa, L, Petracek, V, Povolo, L, Prelz, F, Prevedelli, M, Ravelli, L, Resch, L, Rienäcker, B, Robert, J, Røhne, OM, Rotondi, A, Sacerdoti, M, Sandaker, H, Santoro, R, Scampoli, P, Simon, M, Smestad, L, Sorrentino, F, Testera, G, Tietje, IC, Widmann, E, Yzombard, P, Zimmer, C, Zmeskal, J, Zurlo, N, Andersen, SL, Chevallier, J, Uggerhøj, UI & Lyckegaard, F 2017, 'Characterization of a transmission positron/positronium converter for antihydrogen production', Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, vol. 407, pp. 55-66. https://doi.org/10.1016/j.nimb.2017.05.059

Characterization of a transmission positron/positronium converter for antihydrogen production. / Aghion, S.; Amsler, C.; Ariga, T.; Bonomi, G.; Brusa, R.S.; Caccia, M.; Caravita, R.; Castelli, F.; Cerchiari, G.; Comparat, D.; Consolati, G.; Demetrio, A.; Di Noto, L.; Doser, M.; Ereditato, A.; Evans, C.; Ferragut, R.; Fesel, J.; Fontana, A.; Gerber, S.; Giammarchi, M.; Gligorova, A.; Guatieri, F.; Haider, S.; Hinterberger, A.; Holmestad, H.; Kellerbauer, A.; Krasnický, D.; Lagomarsino, V.; Lansonneur, P.; Lebrun, P.; Malbrunot, C.; Mariazzi, S.; Matveev, V.; Mazzotta, Z.; Müller, S.R.; Nebbia, G.; Nedelec, P.; Oberthaler, M.; Pacifico, N.; Pagano, D.; Penasa, L.; Petracek, V.; Povolo, L.; Prelz, F.; Prevedelli, M.; Ravelli, L.; Resch, L.; Rienäcker, B.; Robert, J.; Røhne, O.M.; Rotondi, A.; Sacerdoti, M.; Sandaker, H.; Santoro, R.; Scampoli, P.; Simon, M.; Smestad, L.; Sorrentino, F.; Testera, G.; Tietje, I.C.; Widmann, E.; Yzombard, P.; Zimmer, C.; Zmeskal, J.; Zurlo, N.; Andersen, S.L.; Chevallier, J.; Uggerhøj, U.I.; Lyckegaard, F.

In: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, Vol. 407, 15.09.2017, p. 55-66.

Research output: Contribution to Journal › Article › Academic › peer-review

TY - JOUR

T1 - Characterization of a transmission positron/positronium converter for antihydrogen production

AU - Aghion, S.

AU - Amsler, C.

AU - Ariga, T.

AU - Bonomi, G.

AU - Brusa, R.S.

AU - Caccia, M.

AU - Caravita, R.

AU - Castelli, F.

AU - Cerchiari, G.

AU - Comparat, D.

AU - Consolati, G.

AU - Demetrio, A.

AU - Di Noto, L.

AU - Doser, M.

AU - Ereditato, A.

AU - Evans, C.

AU - Ferragut, R.

AU - Fesel, J.

AU - Fontana, A.

AU - Gerber, S.

AU - Giammarchi, M.

AU - Gligorova, A.

AU - Guatieri, F.

AU - Haider, S.

AU - Hinterberger, A.

AU - Holmestad, H.

AU - Kellerbauer, A.

AU - Krasnický, D.

AU - Lagomarsino, V.

AU - Lansonneur, P.

AU - Lebrun, P.

AU - Malbrunot, C.

AU - Mariazzi, S.

AU - Matveev, V.

AU - Mazzotta, Z.

AU - Müller, S.R.

AU - Nebbia, G.

AU - Nedelec, P.

AU - Oberthaler, M.

AU - Pacifico, N.

AU - Pagano, D.

AU - Penasa, L.

AU - Petracek, V.

AU - Povolo, L.

AU - Prelz, F.

AU - Prevedelli, M.

AU - Ravelli, L.

AU - Resch, L.

AU - Rienäcker, B.

AU - Robert, J.

AU - Røhne, O.M.

AU - Rotondi, A.

AU - Sacerdoti, M.

AU - Sandaker, H.

AU - Santoro, R.

AU - Scampoli, P.

AU - Simon, M.

AU - Smestad, L.

AU - Sorrentino, F.

AU - Testera, G.

AU - Tietje, I.C.

AU - Widmann, E.

AU - Yzombard, P.

AU - Zimmer, C.

AU - Zmeskal, J.

AU - Zurlo, N.

AU - Andersen, S.L.

AU - Chevallier, J.

AU - Uggerhøj, U.I.

AU - Lyckegaard, F.

PY - 2017/9/15

Y1 - 2017/9/15

N2 - © 2017 Elsevier B.V.In this work a characterization study of forward emission from a thin, meso-structured silica positron/positronium (Ps) converter following implantation of positrons in light of possible antihydrogen production is presented. The target consisted of a ∼1 μm thick ultraporous silica film e-gun evaporated onto a 20 nm carbon foil. The Ps formation and emission was studied via Single Shot Positron Annihilation Lifetime Spectroscopy measurements after implantation of pulses with 3-4·107 positrons and 10 ns temporal width. The forward emission of implanted positrons and secondary electrons was investigated with a micro-channel plate – phosphor screen assembly, connected either to a CCD camera for imaging of the impinging particles, or to a fast photomultiplier tube to extract information about their time of flight. The maximum Ps formation fraction was estimated to be ∼10%. At least 10% of the positrons implanted with an energy of 3.3 keV are forward-emitted with a scattering angle smaller than 50° and maximum kinetic energy of 1.2 keV. At least 0.1–0.2 secondary electrons per implanted positron were also found to be forward-emitted with a kinetic energy of a few eV. The possible application of this kind of positron/positronium converter for antihydrogen production is discussed.

AB - © 2017 Elsevier B.V.In this work a characterization study of forward emission from a thin, meso-structured silica positron/positronium (Ps) converter following implantation of positrons in light of possible antihydrogen production is presented. The target consisted of a ∼1 μm thick ultraporous silica film e-gun evaporated onto a 20 nm carbon foil. The Ps formation and emission was studied via Single Shot Positron Annihilation Lifetime Spectroscopy measurements after implantation of pulses with 3-4·107 positrons and 10 ns temporal width. The forward emission of implanted positrons and secondary electrons was investigated with a micro-channel plate – phosphor screen assembly, connected either to a CCD camera for imaging of the impinging particles, or to a fast photomultiplier tube to extract information about their time of flight. The maximum Ps formation fraction was estimated to be ∼10%. At least 10% of the positrons implanted with an energy of 3.3 keV are forward-emitted with a scattering angle smaller than 50° and maximum kinetic energy of 1.2 keV. At least 0.1–0.2 secondary electrons per implanted positron were also found to be forward-emitted with a kinetic energy of a few eV. The possible application of this kind of positron/positronium converter for antihydrogen production is discussed.

U2 - 10.1016/j.nimb.2017.05.059

DO - 10.1016/j.nimb.2017.05.059

M3 - Article

VL - 407

SP - 55

EP - 66

JO - Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms

JF - Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms

SN - 0168-583X

ER -

Characterization of a transmission positron/positronium converter for antihydrogen production

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